1、Designation: C764 11Standard 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 Department of Defense.1. Scope1.1 This specification covers the composition and physicalproper
3、ties 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 informati
4、on 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 and health practices and determine the applica-bility of regulatory l
5、imitations prior to use.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 Transmission Properties by Means ofthe Guarded
6、-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-Fill Building InsulationC870 Practice for Con
7、ditioning 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 Fungi Resistance ofInsulation Materials and
8、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 Insula-tionC1574 Guide for Determining Blown Density of Pneumati-cally
9、Applied Loose-Fill Mineral Fiber Thermal InsulationC1630 Guide for Development of Coverage Charts forLoose-Fill Thermal Building InsulationsE136 Test Method for Behavior of Materials in a VerticalTube Furnace at 750CE970 Test Method for Critical Radiant Flux of ExposedAttic Floor Insulation Using a
10、Radiant Heat Energy SourceG1 Practice for Preparing, Cleaning, and Evaluating Corro-sion Test Specimens3. Terminology3.1 DefinitionsFor definitions of terms used in this speci-fication, refer to Terminology C168.3.2 Definitions of Terms Specific to This Standard:3.2.1 settled densityThe mass per uni
11、t volume of aloose-fill insulation after which time or forces, or both, haveexerted their effect upon thickness.3.2.1.1 DiscussionThe settled density is determined usinglong term aging studies in attics.4. Classification4.1 The nodulated mineral fiber thermal insulation shall beof the following type
12、s 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 housing andbuildings at a
13、mbient temperatures. Type I is used for pneumatic1This 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 edition approved Sept. 1, 2011. Published September 2011 Origi
14、nallyapproved 1973. Last previous edition approved in 2007 as C764 07. DOI:10.1520/C0764-11.2For 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 S
15、ummary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.application (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
16、place.6. Materials and Manufacture6.1 Basic MaterialThe basic material shall be 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
17、 to be treated to provideimproved processing and handling characteristics suitable 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)
18、. Typical values are shownin Table 1. R values others than those listed in Table 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 teste
19、d in accordance with12.2, nor shall any single specimen be more than 10 % belowthe 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/ft2s).7.3 Combustion
20、 CharacteristicsMineral fiber loose fillwhen tested in accordance with 12.4 shall 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 te
21、st shall not rise above the furnace airtemperature at the beginning of the test, 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 o
22、f a strong objec-tionable nature recorded by more than two of the five panelmembers 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 great
23、er than the comparative plates that arein contact with sterile cotton that has been tested in the samemanner.7.7 Fungi ResistanceWhen tested in accordance with12.8, the insulation shall have growth no greater than thatobserved on the white birch tongue depressor comparativematerial.8. Other Requirem
24、ents8.1 Qualification RequirementsThe following require-ments are generally emphasized for purposes of initial materialproduct requirements:8.1.1 Thermal resistance,8.1.2 Critical radiant flux,8.1.3 Combustion characteristics,8.1.4 Water vapor sorption,8.1.5 Odor emission,8.1.6 Corrosiveness, and8.1
25、.7 Fungi Resistance.8.2 Inspection RequirementsThe following requirementsare generally emphasized for purposes 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 mat
26、erials and shall be clean and dry. The insulationshall not have visible defects that will adversely affect theservice quality.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 a
27、n insulationresistance (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:111315192226303338444
28、960SidewallsA: RAOptional information for products intended for sidewall application.C764 11210. 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,bu
29、t not exclusively, to wood frame constructions.11. Sampling and Conditioning11.1 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 PracticeC87
30、0.12. Test Methods12.1 Blown DensityDetermine the blown density in ac-cordance 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 Meth
31、od C518, Test MethodC177, or derived from measurements made by Test MethodC1363. 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.
32、NOTE 1The thermal resistance is a function of mean temperature. Asan option, determine 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 w
33、ith Test MethodE970.12.4 Behavior of Materials in a Vertical Tube Furnace at1382F (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 ofthe test sp
34、ecimen shall be determined in accordance with TestMethod C1104/C1104M.12.6 Odor 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
35、 a control.12.7.2 Summary of Test Method:12.7.2.1 Individually sandwich five each 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 nu
36、mber of cleaned metal testplates between pieces of washed sterile cotton in an 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 t
37、ested for 96 6 2 h. Copper andaluminum are tested for 720 6 5h.12.7.2.4 After 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
38、attributed tothe insulation is not significantly worse than that of the washedsterile cotton controls. The criterion for acceptance is prede-termined through the use of non-parametric statistics and a90 % confidence level (a = 0.10).12.7.3 Significance and Use:12.7.3.1 The fiber composition and the
39、type of binder usedin the manufacture of mineral fiber insulation sometimes createa 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 und
40、er high humidity conditions.12.7.4 Materials:12.7.4.1 Metal Test Plates, with dimensions 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 0.00
41、5 in. (0.6 mm) thick, type 3003-0. Copper platesshall be 0.032 6 0.005 in. (0.8 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 6
42、116 in. (11 mm) open-square grid.12.7.4.3 Rubber Bands, No. 12.12.7.4.4 Humidity 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
43、.12.7.4.6 Sample Preparation Fixture, having a rectangularcompartment or well 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
44、 side of themetal test plate by a cheesecloth wrap. The loose-fill insulationis 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 insul
45、ation on each sideof the metal test plate.12.7.6 Test Method:12.7.6.1 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
46、couponsusing paper laboratory wipes. Then immerse for 15 min in a hotcaustic 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 a
47、cid 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,C764 113then rinse in distilled water and dry with laboratory wipes.Care shall be taken to avoid excessive hand
48、ling of the surfacesof the metal plates. They shall not be touched after the finalcleaning step. Plastic surgical gloves or their equivalent arerecommended for handling of plates. Also clean the wirescreens before use in the same manner as the aluminum plates(that is, wash in detergent, rinse in dis
49、tilled water, and dry).12.7.6.2 Build up the five test specimens as follows: placeone woven wire screen in the compartment bottom, center anddrop the cheesecloth over the compartment. Place a quantity ofloose-fill insulation into the compartment and tamp the insu-lation to form a uniform pack 412 by 112 by12 in. (114 by 38by 13 mm) thick. Place a metal test plate over the insulation,adding more insulation over the metal test plate and tamp toachieve a uniform top layer 412 by 112 by12 in. (114 by 38 by13 mm) t
