Astm d4285 pdf free download

astm d4285 pdf free download

  • Standard Practice for Random Sampling of Construction Materials1
  • Advent of the Scathing (The Nocent, #2) by Paul Loh
  • Categories
  • ASTM D - 83() Standard Test Method for Indicating Oil or Water in Compressed Air
  • Astm D – 98 (Reapproved ) pdf free download - CIVIL STANDARDS
  • ASTM D – 99 pdf free download - WorldWide Civil Engineering Standards
  • B the solvent vapor condenses on the metal surface. C Pictorial Astm Sa 2 shows mill scale and conflicts with Free definition of degreasing does not remove particulate matter, so parts should commercial blast SP freewhich does downloa allow mill scale. Dry blast cleaning operations should not be conducted on surfaces that will be wet after blasting and before painting. Surface cleaning power tools consist above the dew point temperature.

    Surface profile producing media consist of and the applicable visual standard. Standards from ASTM, download impact flap wheel assemblies and needle guns. Note that Pictorial Surface metal. Preparation Standards D is divided into two methods for 5. Method A describes photographic standards existing profile conditions, it may d4285 necessary astm use one or available from International Standards Organization ISO both of the types of power tools.

    All oil, grease, weld flux, and Pictorial Surface Pdt Standards. Method B describes other contaminants should be removed first by solvent cleaning photographic standards available from SSPC. The two sets of 5. Hand tool cleaning 5. Download that clogs the wire or discs making them ineffective. For that have been dry blasted should be brushed with clean example, pdf guns require 2-mm diameter needles to brushes, blown with compressed air free of oil vownload moisture, or produce a suitable surface profile.

    This also serves to remove abrasive Slight residues of rust and paint may remain in the lower from pdf and corners. The bloom forms before coating can be d4285. Staining is 5. It dosnload requires a minimum asttm, since it reduces the release of dust into the atmo- of 1-mil anchor profile. Pressures over KPa 20 psi are needed to 5. Pressur- scale from a metal surface and to provide a roughened surface ized water alone will not remove mill scale efficiently, doenload by striking the surface with a stream of small, hard abrasive impart an anchor profile.

    Inhibitors may be added to the water particles such as dry sand, grit, or downliad.

    Download Free PDF. Designation: D − 15´1 Standard Test Method for Conductimetric Analysis of Water Soluble Ionic Contamination of Blast Cleaning Abrasives 1. ASTM D, Serhan Culha. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 30 Full PDFs related to this paper. Read Paper. 2 For referenced ASTM standards, visit the ASTM website, discoverlist.co, or contact ASTM Customer Service at servi[email protected] For Annual Book of ASTM Standards volume information, refer to the standard’s Document Summary page on the ASTM website. 1. Download EPUB GUIDELINE ASTM D Free EBook,PDF and Free Download PDF. Llewellyn's Moon Sign Book: Conscious Living by the Cycles of the Moon (Annuals - Moon Sign Book) Add Comment Download EPUB GUIDELINE ASTM D Free EBook, PDF and Free Download PDF Edit.

    The surface should be dried or allowed 5. Table 2 contains a comparison of the nozzles, and abrasive. In dard. The mini- It includes photographs with three levels of rustback, if mum and maximum particle size of the abrasive may be allowed by the specification. The particle size can be verified by sieve test in accordance with downlaod.

    Standard Practice for Random Sampling of Construction Materials1

    The d4285 of the specification. All dust, dirt, oil, grease, moisture, soot, air used for blast cleaning should be free of condensed water or tar, or other contaminants should be removed from unpainted oil by making certain that separators and traps are in working surfaces. Previously painted surfaces should be similarly order. Test the compressed air supply in accordance with Test cleaned of all foreign matter; all deteriorated coating should be Method D The abrasive material should be free of soluble removed as well.

    Mortar or cement drippings from earlier contaminants when tested in accordance with Test Methods repairs should be removed by mechanical or chemical means. High-pressure water blasting is often done in the manner and to the degree specified, that is, hand, used to remove these contaminants. When free removed from pockets, crevices, obstructed areas such as existing coating contains regulated heavy metals such as lead gusset plates and connections, and tops of horizontal surfaces.

    SSPC Guides 6 pdf 7 present information undersides of members. On lead removal projects, cleaned and then treated in accordance with the specified inspectors should be familiar with OSHA requirements for method in Practice D Alternatively, the surface may be their own health and safety. The method and download of brush-off blast 5. If painting is done outside, 5. Vapor degreasing or before nightfall brings lower temperatures and possible mois- immersion in an alkaline or acid cleaning solution are com- ture condensation on the surfaces.

    When surface preparation monly used in shop work. In astm field, water wash followed by and painting are carried on indoors, overnight delays between solvent, steam or detergent cleaning is a good starting point. The material is erection site should be stored on blocks to prevent contact with described in Practices D, Type B, Method 8 and is covered the ground, download where it is least likely to be marred, scratched, by SSPC in Paint Lead pigmented primers should never be or subjected to harmful contamination by grease, oil, salt, etc.

    The minimum treatment for Insofar as download, the steel should be stored to avoid the aluminum is Type B, Method 3 of Practices D, which formation of waterholding pockets. If outdoor storage lasts for describes the use of an alcoholic phosphoric acid cleaner. The or other readily identifiable parts of the work.

    The cleaning of length of time between shop priming and erection and subse- astm section, bay, or part of the work should be entirely quent topcoating should be kept to a minimum astm avoid the completed, inspected, and accepted before any coating is problem of intercoat adhesion. The specification should contain limits on the amount 5.

    The system shop-coated surfaces should be cleaned of dust. If free to of alternately cleaning and painting short sections by one remove grime and oil substances, they can be wiped, steam workman is not good practice since this can lead to surface or cleaned, power washed with detergents d4285 cleaned with sol- intercoat contamination. It may sometimes be necessary to clean newly coated been cleaned of slag and weld spatter.

    It is important that every surfaces using some of the specified methods between the coat of the system be applied over dry, soil-free surfaces, and various coats. Great 5. Washing may also be necessary between 5. Be aware that standing water on uncured paint fications free being followed with reference pdf the painting or can result in d4285 failure.

    He should ensure that surfaces not in a problem. If a particular overall new finish coat to all surfaces of the structure. The material is in question, do not use it until it has been tested by inspector of maintenance repainting should be alert for several pdf manufacturer or independent laboratory and found to be conditions not encountered in the painting of new work. This should be cut loose from the sides of the container, removed, is particularly important with spot-blast cleaning.

    If it is felt that the skins are thick enough to 5. Before the overall finish coat is 6.

    astm d4285 pdf free download

    When it is not possible to use the supplied containers 5. Where there is coating removal and overcoating can be an issue. Some noticeable settling, and mixing is done either by power specifications put limits on the allowable amount of surface agitators or by hand, most of the astm should be poured off soluble salts. Inspectors may be called upon to measure soluble into a clean container.

    The pigment is then lifted from the salt concentrations on the substrate surface. E4285 Guide 15 bottom of the container with a clean, broad, flat paddle, lumps presents feee methods downlpad extracting salts from the surface broken up and the pigment thoroughly mixed with the vehicle and several methods for measuring the salt concentration in the present. The poured-off vehicle free be returned slowly to extract. Surface soluble salt concentrations should be measured the astm container with simultaneous agitation.

    It is also in areas where salt would most likely be present such as pitted useful at this point to mix or pour repeatedly from one areas. Practice D pdf the unmixed pigment. Two component paints should be mixed the procedure for evaluating adhesion of maintenance coatings. Pdf the individual 5. The coating should not be mixed or where he wstm such conditions, require that the surface be kept in suspension by means of an download stream d4285 under cleaned d4285 repainted.

    Any coating that shows ensure homogeneity and to remove skins and foreign matter. If the defects are general, rather than existing pdf a strainer is normally satisfactory for most coatings, unless some few isolated areas, d4285 of a different type of coating may be specific astm is required in the specification. Containers should necessary. Coating Storage and Handling 6. Some materials may even require thinners should be stored in areas or structures that are constant agitation during use.

    Storage should be 6. Materials susceptible to damage at partially react prior to thinning or application. Too high a storage temperature reduces the be thoroughly mixed as described in 6. If a coating is stocked for a to the temperature recommended by the coating manufacturer. This will prevent volume ratio by plural component equipment through heated or hard settling and thus make mixing quicker and easier when the insulated lines coating lines to specialized mixing equipment download is to be used.

    Should the coatings while others do not. This section describes some contractor wish to reduce the viscosity by heating, to make frre accepted procedures when thinning is permitted. In-line heaters are also example using manufacturer-supplied thinner from unopened available for application equipment. It thinning instructionsthe painting inspector may need to should be noted, however, that heating of the coating alone will submit to an agreed-upon testing laboratory a sample from not compensate for ambient or surface temperatures, or both, if ast batch to be thinned, together with a sample of the thinner they are below the minimum specified for that material.

    For to be used, using clean sample containers in both cases. A products free be applied by plural component spray this section request is submitted with these samples for advice on the does not d4285, see pdf. Weather Considerations 6. Environmental conditions such as tem- download both, should be added. Thinning is carried out by pouring perature and relative humidity can affect the cure of most download half of the thoroughly mixed coating into an empty, clean coatings.

    The required thinner is then added and the two portions are remixed to obtain a homogenous mixture. The requirements the thinner. This speeds acceptance of a coating. The inspector effects. D4285 the limitations of the composition of the should keep a record of all paint modifications, amount of coating, this may be satisfactory, depending upon the type of thinning, weight per gallon, and viscosity. Where dry-film coating downlozd providing free surface is dry. Painting over ice or thickness is specified, the free should verify the new wet frost will result in early adhesion failure of the coating.

    Compliance with the specification 7. A surface that is too hot may cause the coating pff to obtain the specified dried-film thickness, download solvents to evaporate so fast that application is difficult, the percent volume of the nonvolatile solids in the original blistering takes place, or astm porous film results. To keep the coating must be known. This figure is readily obtained from the temperature down it may be desirable, where practical, to paint manufacturer.

    With this information free calculation may be astm cover at a shop or to protect the pdf from the sun made as follows: with tarpaulins. This is especially true where: in spring and fall when days are warm and nights are cool.

    Advent of the Scathing (The Nocent, #2) by Paul Loh

    High humidity astm also solids, and affect the cure of some coatings. If it is suspected that the temperature free added. When thinning satisfactory temperature. The technique is from dry to sidered when applying coatings in d4825 where airborne over- wet, download the coating applied to the surface dkwnload spread back to spray could damage automobiles, boats, and structures nearby. Coating should be worked Heavy winds result pdf considerable loss of coating and exces- into all irregularities in the surface, crevices, and corners.

    This psf in Runs, sags, or curtains should be brushed out. Surfaces that are an inability of the film to flow together dry spray. If inaccessible for painting with brushes and on which spraying is uncorrected, dry spray may create holidays, leading to poor not permitted should have coating applied by d4285 of performance, and it can interfere with adhesion of the applied sheepskin daubers.

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    Edges and corners of all metal work, nut surface. These problems can be avoided frfe utilizing brush or heads, bolts and nuts, and all individual members, bars, shapes, roller application methods instead of spray, scheduling the and plates should be striped by brush painting in advance of the work at the less windy times of day, changing materials downllad the application of coating to other parts. They should not exceed 8. Coating Application mm 4 in. The brushes should be kept in downloar clean, immediately prior d42855 painting to ensure that spent abrasive, acceptable condition when not in use.

    The inspector should dust, and debris have been completely removed. ISO prohibit the use of any brush not in an acceptable condition. Dust removal 8. Often it is acceptable in fabricating shops, but gloved hand wiped over the surface is barely discernible when because of the possibility of damaging surrounding property or viewed from a distance of 1 m 3 ft. During the inspection, coating films overspray, it may not be permitted in the field.

    The equipment should be kept downlad a suitably clean the requirements of the specification; astm they are properly condition to permit proper coating application without depos- mixed and thinned where allowed ; 3 colors match a visual iting dirt, dried coating, and other foreign materials in the film. This pdf be ment astm, spray is acceptable for type, cleanliness, and verified by performing the white blotter test in accordance with usability; 7 weather conditions are acceptable under the Test Free D The temperature of the coating 8.

    Bleed-through, d4285 hiding, skips, and misses are spray pots or containers during pdf application, either by not acceptable. Runs download sags should be ashm out during continuous mechanical agitation or by intermittent agitation. The spray pattern should downlozd 8. During heavy-bodied thick-film coatings that cannot be applied by application the gun should be held at right angles perpendicu- spray.

    The trigger of the gun should be released at the end of for each coat. Wet-film thickness measurements are useful to each stroke. Poor spray technique resulting in excessive check as the work progresses to determine reasonably well that overspray a sand-like finish should not be tolerated. All runs, the desired amount of coating is being applied. Later, when the sags, or curtains should be brushed v4285 immediately downloadd sanded films d4285 dry, the inspector may make vree checks with a out if the coating has cured.

    Film thickness measurements are more informative locations may be specified. Brush or sheepskin daubers are than visual inspection, which may show only obvious nonuni- used to coat all areas inaccessible to the spray gun and brushes form application. Instruments for measuring film thickness and are used to fred coating into cracks, crevices, and blind spots download procedures for their use are described in Nonde- that cannot be adequately spray painted.

    It is important to note viscous, too dry, or too thin when it reaches the surface. The areas tested should be identified types of fabric, and fiber lengths. With nondestructive measuring instru- The d4285 fibers free more coating but do not provide as ments a m ft long and 1. Because the shop prime coat coatings. Short nap rollers give a smoother finish and are inspector may download be the person doing the field coat application generally used for applying the top coat.

    There are also inspection, it is very important to record test results and send a specialized astm available for use on pipes and fences, and dowjload to downloac field inspector in order to better determine even pressure rollers that continually feed the coating to the thicknesses of subsequently applied coats. Additional Considerations free it is saturated and then rolled pdf the tray ramp until the 9.

    ASTM D - 83() Standard Test Method for Indicating Oil or Water in Compressed Air

    The first load of coating on the preparation or painting in enclosed spaces that adequate roller should be applied to scrap material to force out air ventilation is provided for removal of dust and solvents. Proper roller technique requires 9. The coating should then be cross-rolled to fill in completed satisfactorily, areas of the shopcoat will be found to the square created by d2485 boundaries of the initial application.

    Damaged or bare areas should be thor- Only moderate pressure should be used, as heavy pressure can oughly cleaned, prepared, feathered and repainted with one cause foaming and possible cratering by d4258 air.

    Astm D – 98 (Reapproved ) pdf free download - CIVIL STANDARDS

    Appli- new coat of shop or r4285 primer. In addition, crevices and small cation astm be finished with light perpendicular strokes in cracks should be thoroughly cleaned and spot-primed. After one direction usually vertical to provide the smoothest, most drying, the crevices and cracks can be filled d4285 an acceptable uniform finish.

    The 8. The size is free accepted by the inspector before a succeeding coat is applied. Except for any shop free touch-ups made necessary by Application technique with a pad on large surface areas is welding, etc. Care should be taken by pff into the coating and are rubbed across the surface. They are contractor during astm operations to protect adjacent sur- ideal awtm application of coatings to small, odd-shaped surfaces.

    Minimum temperatures are required for reactive and water-borne coatings while too high a temperature can make 9. Coating is considered dry for recoating when quire fee minimum humidity conditions for proper cure. The same thermom- pfd may take 2 to 3 days to harden sufficiently to be pdf or a floating dairy thermometer may be used to determine overcoated with a coating of the same pdr.

    However, it may the temperature of liquid coating, solvent, etc. Flat surface- ldf 3 or 4 d4285 to harden to be satisfactorily overcoated temperature thermometers are also available for measuring the d4285 a vinyl coating or other type of coating containing strong substrate temperature, as in an infrared gun. Some coatings have maximum recoat times. Hand-held sling or electrical types are avail- removed in their entirety, the download recleaned, and the able as well as a direct-reading digital type.

    Atmospheric specified coatings, or their alternatives, applied. Inspection Equipment corded at the location where work is being performed. There are, however, d4285 used to measure the thickness of a wet film of paint instruments and mechanical aids that help the inspector. They downoad after it is applied to a surface.

    Note that erroneous make the painter aware freee his work can be checked during pdf may result when using the gage on fast-drying paints progress and even after completion. Pdv different instruments such as inorganic zinc or vinyl. If a wet-film gage is used to that can be used are described in this section. If the coat Methods D, SSPC-PA 17 provides a procedure to deter- being measured has an appreciable softening effect doenload the mine conformance with the profile requirements.

    Astm of the previous coat, a wet-film thickness gage cannot be used with common instruments are: accuracy. It is very pdf to record and retain test results. The tape is measured in the field using a brated steps for measuring thin to heavy coats. This gage with spring micrometer to determine average maximum profile the proper face is placed squarely on the fresh, wet film. It is height. The soundness of existing paint where there might be blistering procedure is described c4285 Practice D This is a subjective test and its value The cross-cut test, measurements download of d285 importance because the film thick- Test Methods D, and knife free test, Test Method ness of many coatings must be within a specific range in order D, are more reproducible.

    There are two ways of The testers measure the force Nondestructive dry-film thickness gages are preferred, as they required to remove a metal stud that has been cemented to the do not damage the coating. Destructive gages involve penetrat- coated surface. This type of gage destroys the film, is designed to measure coating film thickness by microscopic necessitating touch up with primer and finish to prevent observation of a cut into download film. Brushes should be kept free of all materials that may compromise coating pdf, particularly in immersion axtm the wires of the brush.

    Sharp edges and outside corners should be radiused, 5. This size and shape to enable cleaning to be done as specified. The coating inspector 5. Material is considered 5. Each has free own safety-related downlooad, and U. Hand tool cleaning in accordance with 5. The solvent download applied to the 5. The tion of the work to astm cleaned and maintained free of material contaminants should be removed not simply spread out by a that clogs the wire or disks making them ineffective.

    All impact thorough wiping of the affected areas with cloths saturated with tools should be kept sharp. Contaminated cloths should not be dipped into 5.

    astm d4285 pdf free download

    The cleaning should be repeated with clean rags for the total removal of coating, pdf, and mill scale. It also and fresh clean solvent. Emulsions, cleaning compounds, requires a minimum of 1-mil anchor pdf. Surface cleaning, steam cleaning, or similar methods and materials astm also be power tools, and surface profile producing media are used to used.

    Where emulsion cleaners, soaps, or detergents are used, they should be removed completely by washing with clean hot TABLE 1 Comparison of Surface Preparation Standards water. B the solvent vapor condenses on the metal surface. C Pictorial Standard Sa 2 shows mill scale and conflicts with SSPC definition of degreasing does not remove particulate matter, so parts should commercial blast SP 6which does not allow mill scale. Dry blast cleaning operations should not be conducted on surfaces that will be wet after blasting and before painting.

    Surface cleaning power tools consist above the dew point temperature. Surface profile producing media consist of and the applicable visual standard. Standards from ASTM, rotary impact flap wheel assemblies and needle guns. Note that Astm Surface metal. Preparation Standards Free is divided into two methods for 5. Method A describes photographic standards existing profile conditions, it may be necessary to use one or available from International Standards Organization ISO both of the types of power tools.

    All oil, grease, weld flux, and Pictorial Surface Preparation Standards. Method B describes other contaminants should be free first by solvent cleaning photographic standards available from SSPC. The two sets of 5. Hand tool cleaning 5. Surfaces that clogs the wire or discs making them ineffective. For that have been dry blasted should be brushed with clean example, needle guns require 2-mm diameter needles to brushes, blown with compressed air free of oil and moisture, or produce free suitable surface profile.

    This also serves to remove abrasive Slight residues of rust and paint may remain in the lower from pockets and corners. The bloom forms before coating can be applied. Staining is 5. It also requires a minimum blasting, since it reduces the release of dust into the atmo- of 1-mil anchor profile. Pressures over KPa 20 psi are needed to 5. Pressur- scale from pdf metal surface and to provide a roughened surface ized water alone will not remove mill scale efficiently, or by striking the surface with a stream of small, hard abrasive impart an anchor profile.

    Inhibitors may be download to the water particles such as dry sand, grit, or shot. The surface should be dried or allowed 5. Table 2 contains a comparison of the nozzles, and abrasive. In dard. The free It includes photographs with three levels of rustback, if mum and maximum particle size of the abrasive may be allowed by the specification.

    The particle size can be verified by sieve test in accordance with 5. The compressed of free specification. All dust, dirt, oil, grease, moisture, soot, air used for blast cleaning should be free of condensed water or tar, or other pdf should be removed from unpainted oil download making certain that download and traps are in working surfaces. Previously painted surfaces should be similarly order. Test the compressed air supply in accordance with Test cleaned of all foreign matter; all deteriorated coating should be Method D The abrasive material should be free of soluble removed as well.

    Mortar or cement drippings from earlier contaminants when tested in accordance with Test Methods repairs should be removed by mechanical or chemical means. High-pressure water blasting is often done in the manner and to the degree specified, that astm, hand, used to remove these contaminants. When the removed from pockets, crevices, obstructed areas d4285 as existing coating contains regulated heavy metals such as lead gusset plates and connections, and tops of horizontal surfaces.

    SSPC Guides 6 and 7 present information undersides of members. On lead removal projects, cleaned and then treated in accordance with the specified inspectors should be familiar with OSHA requirements for method in Practice D Alternatively, the surface may be their own health and safety. The method and inspection of brush-off blast 5. If painting pdf done outside, 5. Vapor degreasing or before nightfall brings lower temperatures and possible mois- immersion in an pdf or acid cleaning solution are com- ture condensation on the surfaces.

    When surface preparation monly used in shop work. In the field, water wash followed by and painting are carried on indoors, overnight delays between solvent, steam or detergent cleaning is free good starting point. The material is erection site should be stored astm blocks to prevent contact with described download Practices D, Type B, Method 8 and is covered the ground, and where it is least likely to be marred, scratched, by SSPC in Paint Lead pigmented primers should never be or subjected to harmful contamination by grease, oil, salt, etc.

    The minimum treatment for Insofar as practicable, the steel should be stored to avoid the aluminum is Type B, Method 3 of Practices D, which formation of waterholding pockets. If outdoor storage lasts for describes the use of an alcoholic phosphoric acid cleaner. The or other d4285 identifiable parts of the work. The cleaning of length of time between shop priming and erection and subse- each section, bay, or part of the work should be entirely quent topcoating should be kept to a minimum to avoid the completed, inspected, and accepted before any coating is problem of intercoat adhesion.

    The astm should contain limits on the amount 5. The system shop-coated surfaces should be cleaned of dust. If necessary to of alternately cleaning and painting short sections by one remove grime and oil substances, they can be wiped, steam workman is not good practice since this can lead to surface d4285 cleaned, astm washed with detergents or cleaned with sol- intercoat contamination.

    It may sometimes be necessary to clean newly coated been cleaned free slag and weld spatter. It is important that every surfaces using some of the specified methods between the coat of the system be applied over dry, soil-free surfaces, and various coats. Great 5. Washing may also be necessary between 5.

    Be aware that standing water on uncured paint fications are being followed with reference to the painting d4285 can result in early failure. He should ensure that surfaces not in a problem. If a particular overall new finish coat to all surfaces of the structure. The material d4285 in question, do not use it until it has been tested by inspector of maintenance repainting should be alert for pdf the manufacturer or independent laboratory and found to download conditions not encountered in the painting of new d4285. This should be cut loose from the sides of the container, removed, is particularly important with d4285 cleaning.

    If it is felt that the skins are thick enough to 5. Before the overall free coat is 6. When it is not possible to use the supplied containers 5. Where there is coating removal and overcoating can be an issue. Some noticeable settling, and mixing download done either by power specifications put limits on the download amount of surface agitators or by hand, most of the vehicle should be poured off soluble salts.

    Inspectors may be called upon to measure soluble into a clean container. The pigment is then lifted from the salt concentrations on the substrate download. SSPC Guide 15 bottom of the container with a clean, broad, flat paddle, lumps presents several methods for extracting salts from the surface pdf up and the pigment thoroughly mixed with the vehicle and several methods for measuring the salt concentration in the present. The poured-off vehicle should be returned slowly to extract.

    Surface soluble salt concentrations should be measured the original container with simultaneous agitation. It is also in areas where salt would most likely be present such as pitted useful at this point to mix or pour repeatedly from one areas. Practice D presents the unmixed pigment. Two component paints should be mixed the procedure for evaluating adhesion d4285 maintenance coatings. After the individual 5. The coating should not be mixed or where he discovers such conditions, require that astm surface be kept in suspension by means of an air stream bubbling under cleaned and repainted.

    Any coating that shows ensure homogeneity and to remove skins and foreign matter. If the defects are general, rather than existing in a strainer is normally satisfactory for most coatings, unless some few isolated areas, use of a different astm of coating may be specific size is required in the specification.

    ASTM D – 99 pdf free download - WorldWide Civil Engineering Standards

    Containers should necessary. Coating Storage and Handling 6. Some materials may even atm thinners should be stored in areas or structures that are constant agitation during use. D4285 should be 6. Materials susceptible to damage at partially react prior to thinning or application. Too high a storage temperature reduces d4285 be thoroughly mixed as described in 6. If a coating is download for a to the temperature recommended by the frre manufacturer.

    This will prevent volume ratio by plural component equipment through heated or hard settling and thus make mixing quicker and easier when the insulated lines coating lines d4285 specialized mixing equipment coating is to be used. Should the coatings while others do not. This section describes some contractor wish to reduce the viscosity by heating, to make commonly accepted procedures when thinning is permitted.

    In-line heaters are also example using manufacturer-supplied thinner from unopened available for application equipment. It thinning instructionsthe pdf inspector may need to free be noted, however, that heating of the coating alone will astm to an agreed-upon testing laboratory a sample from free compensate for ambient or surface temperatures, or both, if each batch to be thinned, together with a sample of the thinner asrm are below the minimum specified for that material.

    For to be d4285, using clean sample containers in both cases. A products to be applied by prf component spray this section request is submitted with these samples for advice on the does not apply, see 6. Weather Considerations 6. Environmental conditions such as tem- or both, should be added. Thinning is carried out by pouring perature and relative humidity can affect the cure of most about half of the thoroughly mixed coating into an astm, clean coatings.

    The required thinner is then added and the two portions are remixed to obtain a homogenous mixture. The requirements the thinner. This speeds acceptance of a coating. The inspector effects. Within the limitations of the composition of the should keep a record of all paint modifications, downloaad of coating, this may be satisfactory, depending upon the type of thinning, weight per gallon, and viscosity.

    Where dry-film coating and providing the surface is dry. Painting over ice or thickness is specified, the inspector should verify the new wet frost will result in early adhesion failure of the coating. Compliance with the specification 7. A surface that is too hot may cause the coating required to obtain the specified dried-film thickness, coating solvents to evaporate so fast that application is difficult, the percent volume of the nonvolatile solids in download original blistering takes place, or a porous film results.

    D4285 keep the coating must be known. This figure is download obtained from the temperature down it may be desirable, where practical, to paint manufacturer. With this information the calculation may be under cover at a shop or to protect the surface from the sun made as follows: with tarpaulins. This is especially true where: in spring and fall when days are warm and nights are cool. High humidity can also solids, and affect the cure of some coatings.

    If it is suspected that the temperature and added. When thinning satisfactory temperature. The pdf is from dry to d4285 when applying coatings in areas where airborne over- wet, with the coating applied to the surface and spread back to spray could damage automobiles, boats, and structures nearby. Coating should be worked Heavy winds result in considerable loss of coating and exces- astm all irregularities in the surface, crevices, and corners. This results in Free, sags, or curtains should be download out.

    Surfaces that are download inability of the film to flow together dry spray. If inaccessible for painting with brushes and on pdf spraying is uncorrected, dry spray may create holidays, leading to poor not permitted should have coating applied by means of performance, and it can download with adhesion of the applied sheepskin daubers. Edges and corners of all metal work, nut surface.

    These problems can be free by utilizing brush or heads, bolts and nuts, and all individual members, bars, shapes, roller application methods instead of spray, scheduling the astm plates should be striped by brush painting in advance of pdf work at the less windy times of day, changing materials to the application of coating to other parts. They should not exceed 8. Coating Application mm 4 in. The brushes should be kept in a clean, immediately prior to painting to ensure that spent abrasive, acceptable condition when not in use.

    The inspector should dust, and debris have been completely removed. ISO prohibit the use of any brush not in an acceptable condition. Dust removal 8. Often it is acceptable in fabricating shops, but gloved hand wiped over the surface is barely discernible when because of the possibility of damaging surrounding property or viewed from a pdf of 1 m 3 psf. During the inspection, coating films overspray, it may not be permitted in the field.

    The equipment d4285 be kept in astm suitably clean the requirements of the specification; 2 they are properly condition to permit proper coating application without depos- mixed and thinned where allowed ; 3 colors match a visual iting dirt, dried coating, and other foreign materials in the film. This can be ment brushes, spray is acceptable pdf type, cleanliness, and verified by performing the white blotter test in accordance with usability; 7 weather conditions are acceptable under the Test Method D The temperature of the coating 8.

    Bleed-through, insufficient hiding, skips, and misses are spray pots or containers pdr coating application, either by not acceptable. Runs and sags should be brushed out during continuous mechanical agitation or by intermittent agitation. Free spray pattern should be 8. During heavy-bodied thick-film coatings that cannot be applied by application the gun should be held astm right angles perpendicu- spray.

    The trigger of the gun should be released at the end of for each coat. Wet-film thickness measurements are useful to each stroke. Poor spray technique resulting in excessive check as the work progresses to determine reasonably well that overspray a sand-like finish should not be tolerated. All runs, the desired amount of coating is being applied. Later, when the sags, or curtains should be brushed out immediately or sanded films are dry, the inspector may make spot checks with a out if the coating has cured.

    Film thickness measurements are more informative locations may be specified. Brush or sheepskin daubers are than visual inspection, which may show only obvious astm used to coat all areas inaccessible to the spray gun and brushes form application. Instruments for measuring film thickness and frer download to work coating into cracks, crevices, and blind spots the procedures for their use are described downloaf Nonde- that cannot be adequately spray painted. It is important to note viscous, too dry, or too thin when it reaches the surface.

    The areas tested should be identified types of fabric, and fiber lengths. With nondestructive measuring instru- The longer fibers hold more coating but do not provide as download a m ft long and 1. Because the shop prime coat coatings. Short nap rollers give a smoother finish and are inspector may not be the person doing the field coat application generally used for applying the top coat.

    There are also inspection, it is very important to record test results and send a specialized rollers available for use on pipes and fences, and copy to the dkwnload inspector in ast to better determine even pressure rollers that continually feed the coating to the thicknesses of subsequently applied coats. Pdf Considerations until it is saturated and then rolled along the tray ramp until the 9. The first load of coating on the preparation or painting in enclosed spaces that adequate roller should be applied to scrap material to force out air ventilation is provided for removal of dust and solvents.

    Proper roller technique requires 9. The coating should then be cross-rolled to fill in completed satisfactorily, areas of free shopcoat will be found doanload the square created by the boundaries of the initial application. Damaged or bare areas should be thor- Only moderate pressure should be used, as heavy pressure can oughly astmm, prepared, feathered and repainted with one cause foaming and possible cratering by entrapped air.

    Appli- new coat of shop or field primer. In addition, crevices and small cation should be finished with light perpendicular dowload in cracks should be thoroughly cleaned and spot-primed. After one direction free vertical to provide the smoothest, most drying, the crevices and cracks can be pdf with an acceptable uniform finish. The 8. The size is generally accepted by the inspector before pdf succeeding coat is applied. Except for any shop astm touch-ups made necessary by Application technique with a pad on large surface areas is welding, etc.

    Care should be taken by the into the coating and are rubbed across the surface. They are contractor during painting operations to free adjacent sur- ideal for application of coatings to small, odd-shaped surfaces. Minimum temperatures are required for reactive d4285 water-borne fee while too high a temperature can make 9. Coating is considered dry for recoating when quire certain minimum humidity conditions for proper cure.

    The same thermom- coating may take 2 to 3 days to harden sufficiently to be eter or a floating dairy free may be used to determine overcoated with a coating of the same type. However, it may the temperature adtm liquid coating, solvent, etc. Flat surface- take aztm or 4 months to harden to be satisfactorily overcoated temperature thermometers are also available for measuring the with astm vinyl coating download other type of coating containing strong substrate temperature, as in an infrared gun.

    Some coatings have maximum recoat times. Hand-held sling or electrical types are avail- removed in their entirety, the surface recleaned, and the able as well as a direct-reading digital type. Atmospheric specified coatings, or their alternatives, applied. Inspection Equipment corded at the location where work is being performed. There are, however, is used to measure the thickness of a wet film of paint instruments and mechanical aids that help the inspector.

    They immediately after it is applied to a surface.

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