1、Designation: E 1795 04Standard Specification forNon-Reinforced Liquid Coating Encapsulation Products forLeaded Paint in Buildings1This standard is issued under the fixed designation E 1795; the number immediately following the designation indicates the year oforiginal adoption or, in the case of rev
2、ision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers minimum material perfor-mance requirements and laboratory test procedure
3、s for non-reinforced 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 Dry Abrasion Resistance,1.1.4 Water Vapor Transmission,1.1.5 Water and C
4、hemical 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,1.1.13 Flexibility, and1.1.14 Tensile Properties.1.2 This specification does not addr
5、ess the selection of anencapsulation product for specific use conditions. Specific useconditions may require performance values other than thosestated in this specification. See Guide E 1796.1.3 This specification complements Specification E 1797for reinforced liquid coating encapsulation products.1
6、.4 This specification does not cover the use of encapsula-tion products on industrial steel structures nor on residentialcoated metal surfaces because no corrosion control require-ments are included.1.5 This specification applies to any non-reinforced liquidapplied product that relies primarily on a
7、dhesion for attach-ment to the surface. These products are used to encapsulate aleaded paint surface with the intent of reducing human expo-sure to lead.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 unit
8、s are to be regarded as thestandard. The values given in parentheses are for informationonly.1.8 This standard does not purport 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 and health prac
9、tices and determine the applica-bility of regulatory requirements prior to use.2. Referenced Documents22.1 ASTM Standards:D16 Terminology for Paint and Related Coatings, Materi-als, and ApplicationsD 522 Test Methods for Mandrel Bend Test of AttachedOrganic CoatingsD 823 Practices for Producing Film
10、s of Uniform Thicknessof Paint, Varnish, and Related Products on Test PanelsD 1005 Test Methods for Measurement of Dry-Film Thick-ness of Organic Coatings Using MicrometersD 1186 Test Methods for Nondestructive Measurement ofDry Film Thickness of Nonmagnetic Coatings Applied toa Ferrous BaseD 1212 T
11、est Methods for Measurement of Wet Film Thick-ness of Organic CoatingsD 1308 Test Method for Effect of Household Chemicals onClear and Pigmented Organic FinishesD 1475 Test Method for Density of Paint, Varnish, Lacquer,and Related ProductsD 1653 Test Methods for Water Vapor Transmission ofOrganic Co
12、ating FilmsD 2370 Test Method for Tensile Properties of OrganicCoatingsD 2486 Test Method for Scrub Resistance of Wall PaintsD 2794 Test Method for Resistance of Organic Coatings toEffects of Rapid Deformation (Impact)D 3273 Test Method for Resistance to Growth of Mold onthe Surface of Interior Coat
13、ings in an EnvironmentalChamber1This 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 April 1, 2004. Published April 2004. Originallyappro
14、ved in 1995. Last previous edition approved in 2000 as E 1795 00.2For 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 Summary page onthe ASTM webs
15、ite.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.D 3274 Test Method for Evaluating Degree of SurfaceDisfigurement of Paint Films by Microbial (Fungal orAlgal) Growth or Soil and Dirt AccumulationD 3359 Test Methods for MeasuringAd
16、hesion by Tape TestD 3891 Practice for Preparation of Glass Panels for TestingPaint, Varnish, Lacquer, and Related ProductsD 3924 Specification for Standard Environment for Condi-tioning and Testing Paint, Varnish, Lacquers and RelatedMaterialsD 3925 Test Methods for Sampling Liquid Paints and Re-la
17、ted Pigmented CoatingsD 3960 Practice for Determining Volatile Organic Com-pound (VOC) Content of Paints and Related CoatingsD 4060 Test Method for Abrasion Resistance of OrganicCoatings by the Taber AbraserD 4214 Test Methods for Evaluating Degree of Chalking ofExterior Paint FilmsD 4414 Practice f
18、or Measurement ofWet FilmThickness byNotch GagesD 4708 Practice for Preparation of Uniform Free Films ofOrganic CoatingsE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE 1605 Terminology Relating to Lead in BuildingsE 1796 Guide for Selection and Use of Liquid CoatingEncapsul
19、ation Products for Leaded Paint in BuildingsE 1797 Specification for Reinforced Liquid Coating Encap-sulation Products for Leaded Paint in BuildingsE 2239 Practice for Record Keeping and Record Preserva-tion for Lead Hazard ActivitiesG 154 Practice for Operating Fluorescent Light for UVExposure of N
20、onmetallic Materials2.2 Federal Test Methods Standard 141D:32011 Preparation of Steel Panels2012 Preparation of Tin Panels3011 Condition in Container3. Terminology3.1 DefinitionsFor definitions of terms used in this speci-fication, refer to Terminologies D 16 and E 1605.3.2 Definition of Term Specif
21、ic to This Standard3.2.1 lead inaccessibilitythe ability of an encapsulationproduct to resist or inhibit the transport of lead to its surface.4. Classification4.1 Type I: Interior Use OnlyType I defines encapsulationproducts intended for interior use. These products shall meetthe requirements of thi
22、s specification except those for weath-ering and exterior aging (that is, test methods described in 10.9and 10.10.1 not conducted).4.2 Type II: Exterior Use OnlyType II defines encapsula-tion products intended for exterior use. These products shallmeet the requirements of this specification except t
23、hat forinterior aging (that is, test method described in 10.10.2 notconducted).4.3 Type III: Either Exterior or Interior UseType IIIdefines encapsulation products intended for either interior orexterior use. These products shall meet all the requirements ofthis specification.5. Performance Requireme
24、nts5.1 Performance requirements that shall be met for a non-reinforced liquid coating encapsulation product are given inTable 1.NOTE 1In addition to those given in Table 1, performance require-ments for three other properties are of concern for liquid coatingencapsulation products. These are combust
25、ion 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 methods fordetermining them. Requirements for two of these properties, combu
26、stiontoxicity 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 or ordinances exist. The addition of requirements for theseproperties to
27、 this specification will be undertaken when suitable testmethods are available.6. Sampling6.1 A 3.8-L (1-gal) sample is usually sufficient for therecommended tests.6.2 Prior to sampling, establish the condition of the con-tainer since damage to it may cause evaporation, skinning, orother undesirable
28、 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.6.3 Thickening, settling, and separation are undesirable andobjectionable if the coating, after storage, cannot be readil
29、ymade suitable for application with a reasonable amount ofstirring. Determine the conditions in the container in accor-dance with Method 3011 of the Federal Test Method StandardNo. 141C.6.4 Sample the encapsulant in accordance with PracticeD 3925. Determine the density in accordance with Test Method
30、D 1475 and repeat until two successive readings agree within90 g (0.2 lb). Samples for testing may then be taken.6.5 Report the size 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
31、property is given in Table 1.8. 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 retesting data for eachrequirement for which retesting was conducted shall be used indetermining
32、whether the requirement is met.9. Test Specimens9.1 A non-reinforced liquid coating encapsulation productshall be comprised of all principal components in the system,including the base and top coats and primer, if specified, for3Available from Standardization Documents Order Desk, Bldg. 4 Section D,
33、 700Robbins Ave., Philadelphia, PA 19111-5098.E1795042field application. Except for adhesion testing and dry abrasiontesting, 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 Prep
34、aration of Test Panels:9.2.1 The test specimen (substrate) shall be the encapsulantcoated test panel.9.2.2 Prior to product application, the tin-plated steel panelsshall be solvent cleaned in accordance with Method 2012 of theFederal Test Method Standard No. 141C. Supplement the testpanel cleaning p
35、rocedure with an additional cleaning so thatwater wets the entire surface of the panel. Dry and wipe clean.9.2.3 Product application shall be performed using thedraw-down procedure in accordance with Practice D 823.Determine dry-film thickness in accordance with Test MethodD 1005 for free films and
36、Test Methods D 1186 for films onsteel panels except when the manufacturers written instruc-tions reference only wet-film thickness. In this case, determinewet-film thickness in accordance with Test Methods D 1212 orPractice D 4414. If a range of thickness is specified by themanufacturer for field ap
37、plication, the minimum value of thisrange shall be used for product testing in accordance with thisspecification. Dry-film thickness shall remain constant for alltests.9.2.4 Preparation of steel panels shall be in accordance withMethod 2011 of Federal Test Method Standard No. 141C.9.2.5 Preparation
38、of glass panels shall be in accordance withPractice D 3891.9.2.6 Curing shall be performed under standard laboratoryconditions in accordance with Specification D 3924. Cure timeshall be 7 days unless otherwise agreed upon between thepurchaser and seller. Cure time shall remain constant for alltests.
39、9.3 Preparation of Free-Film Specimens:9.3.1 Free-film specimens shall be prepared in accordancewith Practice D 4708.9.4 Laboratory Conditions:9.4.1 Where applicable, all test methods and practicesincluded in this specification shall be performed under standardlaboratory conditions in accordance wit
40、h Specification D 3924.ASTM standard conditions for laboratory testing are 23 6 2C(73.5 6 3.5F) and 50 6 5 % relative humidity.10. Test Methods10.1 The laboratory testing shall be performed on the entirenon-reinforced liquid coating encapsulation product system,whether single or multiple coat, as ap
41、plied in the field.10.2 Impact ResistanceDetermine impact resistance inaccordance with Test Method D 2794 using 0.80 mm (0.032in.) zinc phosphate treated, cold-rolled steel panels as substrateand 16 mm (58 in.) punch diameter.The impact shall be appliedTABLE 1 Performance Requirements for Reinforced
42、 Liquid Coating Encapsulation ProductsPerformance Property Minimum Performance RequirementTested inAccordancewith SectionMinimum Numberof TestsImpact resistance 9 J (80 inlbf) without cracking to the substrate 10.2 Two panelsAdhesion 5A rating 10.3 Two panels each tested at three locationsDry abrasi
43、on resistance Film thickness loss: 20 % 10.4 Two panelsWater vapor transmission No minimum; report test resultA10.5 Three cupsWater and chemical resistancespot test After 1 h recovery period, no evidence of blistering,cracking, or delamination10.6/10.6.1 Two tests for each reagentAfter 24 h recovery
44、, indistinguishable hardnessof the exposed and unexposed surfacesWater and chemical resistanceimmersion test After 2 h drying period, adhesion rating: 5A 10.6/10.6.2 Two panels each tested at three locationsSurface burning characteristics Flame spread index (FSI) 25Smoke development rating 5010.7 On
45、e panelVolatile organic compound (VOC) content No minimum; report test resultB10.8 See Practice D 3960Weatheringexterior end-use products After exposure:chalking: 8 ratingadhesion: 5A ratingflexibility: no cracking or othervisual defectstensile properties: 35 % changefrom initial value10.9 Chalking
46、and Adhesion:two panels each tested atthree locationsCFlexibility: three panelsTensile properties: ten specimensAgingexterior and interior end-use products After minimum6hrecovery:adhesion: 5A ratingflexibility: no cracking or othervisual defectstensile properties: 35 % changefrom initial value10.10
47、.1: forexterior products10.10.2: forinterior productsAdhesion: two panels eachtested at three locationsFlexibility: three panelsTensile properties: ten specimensScrub resistance No erosion of the encapsulant to the substrateafter 1200 cycles10.11 Two panelsMildew resistance Mildew resistance rating:
48、 8 10.12 Three panelsPaintability Adhesion rating: 5A 10.13.1 Two panels each tested at three locationsRepairability Adhesion rating: 5A 10.13.2 Two panels each tested at three locationsFlexibility No cracking or other visual defects 10.14 Three panelsTensile Properties No minimum; report test resul
49、tA10.15 Ten specimensAMinimum performance depends on architectural and end use conditions (see 1.2).BVOC requirements may be specified in ordinances promulgated by authorities having jurisdiction.CThe chalking and adhesion tests can be conducted on the same panels provided that chalking is first performed.E1795043directly to the encapsulant coating. After impact, examine theencapsulant coating visually for the presence of cracks using 5to 73 magnification.10.3 AdhesionDetermine the degree of adhesion in accor-dance with Test Method D 3359, Method A, using 0.25 mm(0.
