1、Designation: C 764 06aStandard Specification forMineral Fiber Loose-Fill Thermal Insulation1This standard is issued under the fixed designation C 764; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A num
2、ber in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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 physicalpr
3、operties 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 the standard. The values in parentheses are provided forinformation only.1.3 This standard does not purport t
4、o 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 limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2B 152/B
5、152M Specification for Copper Sheet, Strip, Plate,and Rolled BarC 168 Terminology Relating to Thermal InsulationC 177 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Guarded-Hot-Plate ApparatusC 390 Practice for Sampling and Acceptance of Therm
6、alInsulation LotsC 518 Test Method for Steady-State Thermal TransmissionProperties by Means of the Heat Flow Meter ApparatusC 687 Practice for Determination of Thermal Resistance ofLoose-Fill Building InsulationC 1104/C 1104M Test Method for Determining the WaterVapor Sorption of Unfaced Mineral Fib
7、er InsulationC 1304 Test Method for Assessing the Odor Emission ofThermal Insulation MaterialsC 1338 Test Method for Determining Fungi Resistance ofInsulation Materials and FacingsC 1363 Test Method for Thermal Performance of BuildingMaterials and Envelope Assemblies by Means of a HotBox ApparatusC
8、1374 Test Method for Determination of Installed Thick-ness of Pneumatically Applied Loose-Fill Building Insula-tionC 1574 Guide for Determining Blown Density of Pneumati-cally Applied Loose-Fill Mineral Fiber Thermal InsulationE 136 Test Method for Behavior of Materials in a VerticalTube Furnace at
9、750CE 970 Test Method for Critical Radiant Flux of ExposedAttic Floor Insulation Using a Radiant Heat Energy SourceG1 Practice for Preparing, Cleaning, and Evaluating Cor-rosion Test Specimens3. Terminology3.1 DefinitionsFor definitions of terms used in this speci-fication, refer to Terminology C 16
10、8.3.2 Definitions of Terms Specific to This Standard:3.2.1 settled densityThe mass per unit volume of aloose-fill insulation after which time or forces, or both, haveexerted their effect upon thickness.4. Classification4.1 The nodulated mineral fiber thermal insulation shall beof the following types
11、 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 am
12、bient temperatures. Type I is used for pneumaticapplication (blown or conveyed by an air stream through a hose1This 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 e
13、dition approved Nov. 15, 2006. Published November 2006. Originallyapproved 1973. Last previous edition approved in 2006 as C 764 06.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume inform
14、ation, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.and discharged over the area to be insulated). Type II is usedfor application by pouring in place.6. Materials and
15、 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 to be treated to prov
16、ideimproved 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). Typical values are s
17、hownin 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 tested in accordance with12
18、.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 CharacteristicsMinera
19、l 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 test shall not rise abov
20、e 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 of a strong objec-tiona
21、ble 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 greater than the comparativ
22、e 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 Requirements8.1 Qualification
23、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, and8.1.7 Fungi Resistance.8.
24、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 materials and shall be cl
25、ean 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 an insulationresistance
26、 (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 less than:(in.)The weight per ft2of installed insulation tobe not less than:(lbs/ft2)Attic:111315192226303338444960SidewallsA: RAOptio
27、nal information for products intended for sidewall application.C 764 06a210. 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, t
28、o wood frame constructions.11. Sampling11.1 Sampling of the insulation shall be in accordance withPractice C 390. Specific provisions for sampling shall beagreed upon between the purchaser and supplier.12. Test Methods12.1 Blown DensityDetermine the blown density in ac-cordance with Guide C 1574.12.
29、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 C 518, Test MethodC 177, or derived from measurements made by Test MethodC 1363. The mean temper
30、ature 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 C 687. See Note 1.NOTE 1The thermal resistance is a function of mean temperature. Asan option, determine the ther
31、mal 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 MethodE 970.12.4 Behavior of Materials in a Vertical Tube Furnace at1382F (750C)The be
32、havior of mineral fiber loose-fillinsulation in a vertical tube furnace at 1382F (750C) shall bedetermined in accordance with Test Method E 136.12.5 Water Vapor SorptionThe water vapor sorption ofthe test specimen shall be determined in accordance with TestMethod C 1104/C 1104M.12.6 Odor EmissionDet
33、ermine the odor emission in ac-cordance with Test Method C 1304.12.7 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 each of speci
34、allycleaned 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 identicalma
35、nner.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 the appropri
36、ate 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 washedsterile cott
37、on 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 type of binder usedin the manufacture of mineral fiber insulation sometimes createa potent
38、ial 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 dimensions o
39、f 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 mm) thick,
40、 in accordance withSpecification B 152/B 152M 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 Humidity Test Ch
41、amber 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 with inter
42、ior 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 themetal test plate by a cheesecloth wrap. The loose-fill insulationis compress
43、ed 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 Clean the metal te
44、st 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 hotcaustic solution (1
45、5 % 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 labor
46、atory 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 avoid excessive handling of the surfacesof the metal plates. They shall not be touched after the finalC 764 06a3clea
47、ning 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 distilled water, and dry).12.7.6.2 Build up the five test specimens as follows: placeone
48、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,
49、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) thick. Fold the cheesecloth around this configuration.Place a woven wire screen on top of the assembly and securethe assembly at each end with a No. 12 rubber band.12.7.6.3 Make five test specimens, each one consisting ofone piece of metal placed between two pieces of insulation.Compress this assembly between two pieces of woven wirescreen and secured near each end with a No. 12 rubber
