1、Designation: C764 17Standard Specification forMineral Fiber Loose-Fill Thermal Insulation1This standard is issued under the fixed designation C764; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number
2、 in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope1.1 This specification covers the composition and physicalp
3、roperties of nodulated mineral fiber thermal insulation for usein attics or enclosed spaces in housing and other framedbuildings.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for info
4、rmation onlyand are not considered standard.1.3 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, health and environmental practices and deter-mine the applicabi
5、lity of regulatory limitations prior to use.1.4 This international standard 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 W
6、orld Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2B152/B152M Specification for Copper Sheet, Strip, Plate,and Rolled BarC168 Terminology Relating to Thermal InsulationC177 Test Method for Steady-State Heat Flux Measure-ments and Thermal Tra
7、nsmission Properties by Means ofthe Guarded-Hot-Plate ApparatusC390 Practice for Sampling and Acceptance of ThermalInsulation LotsC518 Test Method for Steady-State Thermal TransmissionProperties by Means of the Heat Flow Meter ApparatusC687 Practice for Determination of Thermal Resistance ofLoose-Fi
8、ll Building InsulationC870 Practice for Conditioning of Thermal Insulating Ma-terialsC1104/C1104M Test Method for Determining the WaterVapor Sorption of Unfaced Mineral Fiber InsulationC1304 Test Method for Assessing the Odor Emission ofThermal Insulation MaterialsC1338 Test Method for Determining F
9、ungi Resistance ofInsulation Materials and FacingsC1363 Test Method for Thermal Performance of BuildingMaterials and Envelope Assemblies by Means of a HotBox ApparatusC1374 Test Method for Determination of Installed Thick-ness of Pneumatically Applied Loose-Fill Building Insu-lationC1574 Guide for D
10、etermining Blown Density of Pneumati-callyApplied Loose-Fill Mineral Fiber Thermal InsulationC1617 Practice for Quantitative Accelerated LaboratoryEvaluation of Extraction Solutions Containing IonsLeached from Thermal Insulation on Aqueous Corrosionof MetalsC1630 Guide for Development of Coverage Ch
11、arts forLoose-Fill Thermal Building InsulationsE136 Test Method for Behavior of Materials in a VerticalTube Furnace at 750CE970 Test Method for Critical Radiant Flux of ExposedAtticFloor Insulation Using a Radiant Heat Energy SourceG1 Practice for Preparing, Cleaning, and Evaluating Corro-sion Test
12、Specimens3. Terminology3.1 DefinitionsFor definitions of terms used in thisspecification, refer to Terminology C168.3.2 Definitions of Terms Specific to This Standard:3.2.1 settled densityThe mass per unit volume of a loose-fill insulation after which time or forces, or both, have exertedtheir effec
13、t upon thickness.3.2.1.1 DiscussionThe settled density is determined usinglong term aging studies in attics.1This specification is under the jurisdiction of ASTM Committee C16 onThermal Insulation and is the direct responsibility of Subcommittee C16.23 onBlanket and Loose Fill Insulation.Current edi
14、tion approved Sept. 1, 2017. Published September 2017. Originallyapproved 1973. Last previous edition approved in 2011 as C764 11. DOI:10.1520/C0764-17.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMSta
15、ndards volume information, refer to the standards Document Summary 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 principl
16、es on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.14. Classification4.1 The nodulated mineral fiber thermal insulation shall beof
17、 the following types and classes:4.1.1 Type IPneumatic application.4.1.2 Type IIPoured application.5. Ordering Information5.1 Both types of nodulated mineral fiber thermal insulationare intended for use as thermal insulation in open spaces, suchas attics and enclosed spaces, such as walls, in housin
18、g andbuildings at ambient temperatures. Type I is used for pneumaticapplication (blown or conveyed by an air stream through a hoseand discharged over the area to be insulated). Type II is usedfor application by pouring in place.6. Materials and Manufacture6.1 Basic MaterialThe basic material shall b
19、e fibers madefrom mineral substances such as rock, slag, or glass processedfrom the molten state into an incombustible fibrous form.6.2 ManufactureThe fibers shall be mechanically pro-cessed into nodules, and are permitted to be treated to provideimproved processing and handling characteristics suit
20、able forinstallation by pouring or pneumatic applications.7. Physical Properties7.1 Thermal CharacteristicsThe standard thermal resis-tance values normally recommended for open application areexpressed in Fhft2/Btu (Km2/W). Typical values are shownin Table 1. R values others than those listed in Tab
21、le 1 shall beas agreed upon between the supplier and the purchaser. Thethermal resistance R for the average of any (four) randomlyselected samples shall not be more than 5 % below themutually agreed upon R value when tested in accordance with12.2, nor shall any single specimen be more than 10 % belo
22、wthe mutually agreed upon R value.7.2 Critical Radiant FluxMineral fiber loose fill whentested in accordance with 12.3 shall have a critical radiantflux-flame propagation resistance 0.12 W/cm2(.11 Btu/ft2 s).7.3 Combustion CharacteristicsMineral fiber loose fillwhen tested in accordance with 12.4 sh
23、all not have a recordedtemperature rise of more than 54F (30C); shall have noflaming after the first 30 s; and, if the specimen weight lossexceeds 50 % during the test, the recorded temperature of thespecimen during the test shall not rise above the furnace airtemperature at the beginning of the tes
24、t, and there shall be noflaming of the specimen.7.4 Water Vapor SorptionThe water vapor sorption of theinsulation shall not be more than 5 % by weight when tested inaccordance with 12.5.7.5 Odor EmissionA detectable odor of a strong objec-tionable nature recorded by more than two of the five panelme
25、mbers shall constitute rejection of the material when testedin accordance with 12.6.7.6 CorrosivenessWhen tested in accordance with 12.7,the metal plates that are in contact with the insulation shallshow no corrosion greater than the comparative plates that arein contact with sterile cotton that has
26、 been tested in the samemanner.7.7 Fungi ResistanceWhen tested in accordance with12.9, the insulation shall have growth no greater than thatobserved on the white birch tongue depressor comparativematerial.8. Other Requirements8.1 Qualification RequirementsThe following require-ments are generally em
27、phasized for purposes of initial materialproduct requirements:8.1.1 Thermal resistance,8.1.2 Critical radiant flux,TABLE 1 Coverage ChartNOTE 1Chart is occasionally given in metric units.R Value at 75F MeanTemperatureMaximum Net Coverage Minimum Thickness Minimum Weight per ft2To obtain an insulatio
28、nresistance (R)of:hft2FBtuMinimum bags per 1000 ft2of net area (bags/MSF)Maximum ft2coverageper bag (ft2)Installed insulationto be not less than:(in.)Settled thicknessnot to be lessthan: (in.)The weight per ft2of installed insulation tobe not less than:(lbs/ft2)Attic:111315192226303338444960Sidewall
29、sA: RAOptional information for products intended for sidewall application.C764 1728.1.3 Combustion characteristics,8.1.4 Water vapor sorption,8.1.5 Odor emission,8.1.6 Corrosiveness, and8.1.7 Fungi Resistance.8.2 Inspection RequirementsThe following requirementsare generally emphasized for purposes
30、of acceptance samplingof lots of qualified thermal insulation:8.2.1 Minimum bag weight, and8.2.2 Workmanship.9. Workmanship9.1 Mineral fiber nodulated insulation shall be free offoreign materials and shall be clean and dry. The insulationshall not have visible defects that will adversely affect thes
31、ervice quality.10. Significance and Use10.1 This specification covers products that are used inbuildings. While products that comply with this specificationare used in various constructions, they are adaptable primarily,but not exclusively, to wood frame constructions.11. Sampling and Conditioning11
32、.1 Sampling of the insulation shall be in accordance withPractice C390. Specific provisions for sampling shall be agreedupon between the purchaser and supplier.11.2 Condition the test samples in accordance with PracticeC870.12. Test Methods12.1 Blown DensityDetermine the blown density in accor-dance
33、 with Guide C1574.12.2 Thermal ResistanceUsing samples prepared in ac-cordance with 12.1 and adjusted to the settled density, thethermal conductivity or thermal conductance shall be deter-mined in accordance with Test Method C518, Test MethodC177, or derived from measurements made by Test MethodC136
34、3. The mean temperature shall be 75F (23.9C) and thetemperature difference shall be a minimum of 40F (22C).The thermal resistance shall then be calculated from thethermal conductance values using Practice C687. See Note 1.NOTE 1The thermal resistance is a function of mean temperature. Asan option, d
35、etermine the thermal resistance at additional mean tempera-tures as agreed upon by the purchaser and the manufacturer.12.3 Critical Radiant FluxThe critical radiant flux of theinsulation shall be determined in accordance with Test MethodE970.12.4 Behavior of Materials in a Vertical Tube Furnace at13
36、82F (750C)The behavior of mineral fiber loose-fillinsulation in a vertical tube furnace at 1382F (750C) shall bedetermined in accordance with Test Method E136.12.5 Water Vapor SorptionThe water vapor sorption of thetest specimen shall be determined in accordance with TestMethod C1104/C1104M.12.6 Odo
37、r EmissionDetermine the odor emission in ac-cordance with Test Method C1304.12.7 Corrosiveness:12.7.1 ScopeThis test method provides a qualitative mea-sure of the corrosiveness of mineral fiber insulation by com-parison to a control.12.7.2 Summary of Test Method:12.7.2.1 Individually sandwich five e
38、ach of speciallycleaned steel, copper, and aluminum test plates between piecesof insulation. Hold the insulation uniformly against each sideof the test plate with wire screens and rubber bands.12.7.2.2 Sandwich an equal number of cleaned metal testplates between pieces of washed sterile cotton in an
39、 identicalmanner.12.7.2.3 Vertically suspend the samples in a humidity testchamber at 95 6 3 % relative humidity and temperature of 1206 3F (49 6 2C) for time periods determined by the type ofmetal being tested. Steel is tested for 96 6 2 h. Copper andaluminum are tested for 720 6 5h.12.7.2.4 After
40、the appropriate test period, compare the testplates exposed to the insulation to the control plates exposed tosterile cotton for severity of corrosion. The insulation isconsidered to have passed this test if the corrosion attributed tothe insulation is not significantly worse than that of the washed
41、sterile cotton controls. The criterion for acceptance is prede-termined through the use of non-parametric statistics and a90 % confidence level ( = 0.10).12.7.3 Significance and Use:12.7.3.1 The fiber composition and the type of binder usedin the manufacture of mineral fiber insulation sometimes cre
42、atea potential for corrosion on certain metals in the presence ofliquid water or water vapor.12.7.3.2 This test method is used to determine the relativecorrosion potential of mineral fiber insulation on specificmetals under high humidity conditions.12.7.4 Materials:12.7.4.1 Metal Test Plates, with d
43、imensions of 1 by 4 614in. (25 by 100 mm). Steel plates shall be 0.02 6 0.005 in. (0.5mm) thick, bright No. 2 finish, cold-rolled low-carbon stripsteel, quarter hard, temper No. 3. The aluminum plates shall be0.025 6 0.005 in. (0.6 mm) thick, type 3003-0. Copper platesshall be 0.032 6 0.005 in. (0.8
44、 mm) thick, in accordance withSpecification B152/B152M type ETP, No. 110 soft copper.12.7.4.2 Woven Wire Screen, 112 614 by 412 614 in. (114by 38 mm), made of Type 304 stainless steel, 0.063 6 0.005 in.(1.60 mm) wire,716 6116 in. (11 mm) open-square grid.12.7.4.3 Rubber Bands, No. 12.12.7.4.4 Humidi
45、ty Test Chamber clean, well maintained,and capable of controlling temperature at 120 6 3F (49 62C) and humidity at 95 6 3 % relative humidity.12.7.4.5 Cheesecloth or Cotton Gauze, cut into 6 by 10-in.(152 by 254-mm) pieces.12.7.4.6 Sample Preparation Fixture, having a rectangularcompartment or well
46、with interior dimensions of 412 by 112 by112 in. (114 by 38 by 38 mm) with one 412 by 112 in. (114 by38 mm) opening.12.7.5 Test SpecimenA test specimen shall consist of alayer of loose-fill insulation held in place on each side of theC764 173metal test plate by a cheesecloth wrap. The loose-fill ins
47、ulationis compressed uniformly against each side of the metal testplate using woven wire screening and a No. 12 rubber band ateach end so that there is approximately a 412 by 112 by12-in.(114- by 38- by 13-mm) thick layer of insulation on each sideof the metal test plate.12.7.6 Test Method:12.7.6.1
48、Clean the metal test plates until the surface is freeof water breaks. Clean the steel test plates first by 5 min ofvapor degreasing (using 1-1-1 trichlorethane or chloroprene).After degreasing, wipe residue from both sides of the couponsusing paper laboratory wipes. Then immerse for 15 min in a hotc
49、austic solution (15 % KOH by volume), rinse thoroughly indistilled water, and immediately dry using paper laboratorywipes. Degrease the copper plates in the same manner and thenfurther clean in a hot acidic solution (10 % nitric acid byvolume) for 15 min. Rinse the copper plates and dry immedi-ately using paper laboratory wipes. Clean the aluminum plateswith a 5 % solution all-purpose laboratory detergent and water,then rinse in distilled water and dry with laboratory wipes.Care shall be taken to av
