1、Designation: E1797 12 (Reapproved 2017)1Standard Specification forReinforced Liquid Coating Encapsulation Products forLeaded Paint in Buildings1This standard is issued under the fixed designation E1797; the number immediately following the designation indicates the year oforiginal adoption or, in th
2、e case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1NOTEEditorial changes were made throughout in October 2017.1. Scope1.1 This specification covers
3、minimum material perfor-mance requirements and laboratory test procedures for rein-forced liquid coating encapsulation products (single- ormultiple-coat systems) for leaded paint in buildings. Perfor-mance properties addressed in this specification are:1.1.1 Impact Resistance,1.1.2 Adhesion,1.1.3 Dr
4、y Abrasion Resistance,1.1.4 Water Vapor Transmission,1.1.5 Water and Chemical Resistance,1.1.6 Surface Burning Characteristics,1.1.7 Volatile Organic Compound (VOC) Content,1.1.8 Weathering,1.1.9 Aging,1.1.10 Scrub Resistance,1.1.11 Mildew Resistance,1.1.12 Paintability/Repairability,1.2 This specif
5、ication does not address the selection of anencapsulation product for specific use conditions. Specific useconditions may require performance values other than thosestated in this specification. See Guide E1796 for guidance.1.3 This specification complements Specification E1795 fornon-reinforced liq
6、uid coating encapsulation products.1.4 This specification does not cover the use of encapsula-tion products on industrial steel structures nor residentialexterior coated metal surfaces because no corrosion controlrequirements are included.1.5 This specification applies to any liquid-applied producti
7、ncorporating reinforcement materials as part of the system.Reinforcement materials are continuous fabric or mesh and areapplied in the field. These materials are typically appliedbetween a base and top coat. These products are used toencapsulate a leaded paint surface with the intent of reducinghuma
8、n exposure to lead in paint.1.6 The results of the test methods included in this specifi-cation will not necessarily predict field performance.1.7 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.1.8 This standard does not purpo
9、rt to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.9 This international standard
10、 was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Refer
11、enced Documents2.1 ASTM Standards:2D16 Terminology for Paint, Related Coatings, Materials, andApplicationsD823 Practices for Producing Films of Uniform Thicknessof Paint, Varnish, and Related Products on Test PanelsD1005 Test Method for Measurement of Dry-Film Thick-ness of Organic Coatings Using Mi
12、crometersD1212 Test Methods for Measurement of Wet Film Thick-ness of Organic CoatingsD1308 Test Method for Effect of Household Chemicals onClear and Pigmented Organic FinishesD1475 Test Method for Density of Liquid Coatings, Inks,and Related ProductsD1653 Test Methods for Water Vapor Transmission o
13、f Or-ganic Coating Films1This specification is under the jurisdiction of ASTM Committee E06 onPerformance of Buildings and is the direct responsibility of Subcommittee E06.23on Lead Hazards Associated with Buildings.Current edition approved Oct. 1, 2017. Published November 2017. Originallyapproved i
14、n 1995. Last previous edition approved in 2012 as E1797 12. DOI:10.1520/E1797-12R17E01.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summar
15、y page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles f
16、or theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1D2486 Test Methods for Scrub Resistance of Wall PaintsD2794 Test Method for Resistance of Organic Coatings tothe Effects of Rapid Deformation (
17、Impact)D3273 Test Method for Resistance to Growth of Mold on theSurface of Interior Coatings in an Environmental Cham-berD3274 Test Method for Evaluating Degree of Surface Dis-figurement of Paint Films by Fungal or Algal Growth, orSoil and Dirt AccumulationD3359 Test Methods for Rating Adhesion by T
18、ape TestD3924 Specification for Standard Environment for Condi-tioning and Testing Paint, Varnish, Lacquer, and RelatedMaterials (Withdrawn 2016)3D3925 Practice for Sampling Liquid Paints and RelatedPigmented CoatingsD3960 Practice for DeterminingVolatile Organic Compound(VOC) Content of Paints and
19、Related CoatingsD3891 Practice for Preparation of Glass Panels for TestingPaint, Varnish, Lacquer, and Related ProductsD4060 Test Method for Abrasion Resistance of OrganicCoatings by the Taber AbraserD4214 Test Methods for Evaluating the Degree of Chalkingof Exterior Paint FilmsD4414 Practice for Me
20、asurement of Wet Film Thickness byNotch GagesD4541 Test Method for Pull-Off Strength of Coatings UsingPortable Adhesion TestersD7091 Practice for Nondestructive Measurement of DryFilm Thickness of Nonmagnetic Coatings Applied toFerrous Metals and Nonmagnetic, Nonconductive Coat-ings Applied to Non-F
21、errous MetalsE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE1605 Terminology Relating to Lead in BuildingsE1795 Specification for Non-Reinforced Liquid Coating En-capsulation Products for Leaded Paint in BuildingsE1796 Guide for Selection and Use of Liquid CoatingEncapsulat
22、ion Products for Leaded Paint in BuildingsE2239 Practice for Record Keeping and Record Preservationfor Lead Hazard ActivitiesG154 Practice for Operating Fluorescent Ultraviolet (UV)Lamp Apparatus for Exposure of Nonmetallic Materials2.2 Federal Test Methods Standard 141C:42011 Preparation of Steel P
23、anels2012 Preparation of Tin Panels2.3 Federal Test Methods Standard 141D:43011 Condition in Container3. Terminology3.1 DefinitionsFor definitions of terms used in thisspecification, refer to Terminologies D16 and E1605.4. Classification4.1 Type I: Interior Use OnlyType I defines encapsulationproduc
24、ts intended for interior use. These products shall meetthe requirements of this specification except those for weath-ering and exterior aging (for example, test methods describedin 10.9 and 10.10.1 not conducted).4.2 Type II: Exterior Use OnlyType II defines encapsula-tion products intended for exte
25、rior use. These products shallmeet the requirements of this specification except that forinterior aging (for example, test method 10.10.2 not con-ducted).4.3 Type III: Either Exterior or Interior UseType IIIdefines encapsulation products intended for either interior orexterior use. These products sh
26、all meet all the requirements ofthis specification.5. Performance Requirements5.1 Performance requirements that shall be met for a rein-forced liquid coating encapsulation product are given in Table1.NOTE 1In addition to those given in Table 1, performance require-ments for three other properties ar
27、e of concern for liquid coatingencapsulation products. These are combustion toxicity, emissions duringapplication and curing, and lead accessibility. However, requirements forthese properties cannot be included in this specification at this timebecause there are no adequate ASTM or Federal test meth
28、ods fordetermining them. Requirements for two of these properties, combustiontoxicity and emissions during application and curing, may be subject toregulations or ordinances promulgated by authorities having jurisdiction.The user of this specification is advised to determine whether suchregulations
29、or ordinances exist. The addition of requirements for theseproperties to this specification will be undertaken when suitable testmethods are available.6. Sampling6.1 A 3.8-L (1-gal) sample of the encapsulant coating isusually sufficient for conducting the specified tests.6.2 Prior to sampling, estab
30、lish the condition of the con-tainer since damage to it may cause evaporation, skinning, orother undesirable effects. Excessive storage time and tempera-ture fluctuations may cause settling or changes in viscosity.Materials beyond the manufacturers stated shelf life shall notbe sampled. Reinforcemen
31、t materials shall be evaluated toensure they are undamaged.6.3 Thickening, settling, and separation are undesirable andobjectionable if the coating cannot be readily made suitable forapplication with a reasonable amount of stirring. Determine theconditions in the container in accordance with Method
32、3011 ofFederal Test Method Standard No. 141C.6.4 Sample the encapsulation product in accordance withPractice D3925. Determine the density in accordance with TestMethod D1475, and repeat until two successive readings agreewithin 90 g (0.2 lb). Samples for testing may then be taken.6.5 Report the size
33、 of the container from which the samplewas taken and product identification codes.7. Number of Tests7.1 The number of tests that shall be conducted for eachperformance property is given in Table 1.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from DLA
34、 Document Services, Bldg. 4/D, 700 Robbins Ave.,Philadelphia, PA 19111-5094, http:/quicksearch.dla.mil.E1797 12 (2017)128. Retesting8.1 In cases where encapsulation products fail to pass one ormore requirements of this specification, retesting shall bepermitted. Both the original data and the retest
35、ing data for eachrequirement for which retesting was conducted shall be used indetermining whether the requirement is met.9. Test Specimens9.1 An encapsulation product shall be comprised of allprincipal components in the system, including the base andtopcoats, the reinforcement material, and primer,
36、 if specified,for field application. Except for dry abrasion and adhesiontesting, where specialty primers may be used for flash rustresistance, primers shall not be used solely for product perfor-mance testing in accordance with this specification.9.2 Preparation of Test Panels:9.2.1 The test specim
37、en (substrate) shall be the encapsulant-coated test panel.9.2.2 Prior to product application, the tin-plated steel panelsshall be solvent cleaned in accordance with Method 2012 ofthe Federal Test Method Standard No. 141C. Supplement thetest panel cleaning procedure with an additional cleaning sothat
38、 water wets the entire surface of the panel. Dry and wipeclean.9.2.3 Product application shall be performed using thedraw-down procedure, where applicable, in accordance withPractices D823. Determine the dry-film thickness in accor-dance with Test Method D1005 for free films or PracticeD7091 for fil
39、ms on steel panels except when the manufactur-ers written instructions reference only wet-film thickness. Inthis case, measure wet-film thickness in accordance with TestMethods D1212 or Practice D4414. If a range of thickness isspecified by the manufacturer for field application, the mini-mum value
40、of this range shall be used for product testing inaccordance with this specification. The dry-film thickness shallremain constant for all tests.TABLE 1 Performance Requirements For Reinforced Liquid Coating Encapsulation ProductsPerformancePropertyMinimum PerformanceRequirementTested inAccordancewit
41、h ParagraphMinimum Numberof TestsImpact resistance 9 J (80 in. lbf) without cracking to thesubstrate10.2 Two panelsAdhesion 700 kPa (100 lbf/in.2) 10.3 Three panelsDry abrasion resistance For all reinforcements: no abrasionthrough the reinforcement after 1000cyclesAdditionally, for mesh-typereinforc
42、ements: coating presentwithin the mesh10.4 Two panelsWater vapor transmission No minimum; report test resultA10.5 Three cupsWater and chemicalresistancespot testAfter 1 h recovery period, noevidence of blistering, cracking, ordelaminationAfter 24 h recovery,indistinguishable hardness of theexposed a
43、nd unexposed surfaces10.6/10.6.1 Two tests for each reagentWater and chemicalresistanceimmersion testAfter 1 h recovery period, noevidence of blistering, cracking, ordelaminationAfter 24 h recoveryperiod, indistinguishable hardness of theexposed and unexposed surfaces10.6/10.6.2One panel examined in
44、 eachof three locationsSurface burning characteristics Flame spread index (FSI) 6 h recovery period after com-pleting exposure:adhesion: 700 kPa (100 lbf/in.2)10.10.1 Three panelsAginginterior end-useproductsAfter a 6 h recovery period after com-pleting exposure:adhesion: 700 kPa (100 lbf/in.2)10.10
45、.2 Three panelsScrub resistance No erosion of the encapsulant to thesubstrate after 1200 cycles10.11 Two panelsMildew resistance Mildew resistance rating: 8 10.12 Three panelsPaintabilityAdhesion rating: 5A 10.13.1Two panels each tested atthree locationsRepairability Adhesion: 700 kPa (100 lbf/in.2)
46、 10.13.2 Three panelsAMinimum performance depends on architectural and end use conditions (see 1.2).BVOC requirements may be specified in ordinances promulgated by authorities having jurisdiction.E1797 12 (2017)139.2.3.1 Mechanical fasteners shall not be used in preparingthe test panels.9.2.4 Prepar
47、e steel panels in accordance with Method 2011of Federal Test Method Standard No. 141C.9.2.5 Prepare glass panels in accordance with PracticeD3891.9.2.6 Curing shall be performed under standard laboratoryconditions in accordance with Specification D3924. The curetime shall be seven days unless otherw
48、ise agreed upon betweenthe purchaser and the seller. The cure time shall remainconstant for all tests.9.3 Laboratory Conditions:9.3.1 Where applicable, all test methods and practicesincluded in this specification shall be performed under standardlaboratory conditions in accordance with Specification
49、 D3924.ASTM standard conditions for laboratory testing are 23 6 2C(73.5 6 3.5 F) and 50 6 5 % relative humidity.10. Test Methods10.1 Testing conducted in accordance with this specificationshall be performed on the entire encapsulation product system,whether single or multiple coat, as applied in the field, exceptfor scrub resistance, volatile organic compound (VOC)content, and permeability, which are performed on the top coatonly.10.2 Impact ResistanceDetermine the impact resistance inaccordance with Test Methods D2794 using 0.80-mm (0.032-in.) zinc phosphate tr
