1、Designation: C764 11C764 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
2、 number 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 ph
3、ysical properties of nodulated mineral fiber thermal insulation for use inattics or enclosed spaces in housing and other framed buildings.1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provide
4、d for information only and are not considered standard.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety safety, health and healthenvironmental practices and
5、determine theapplicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendati
6、ons issuedby the World Trade Organization Technical Barriers 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 Measureme
7、nts and Thermal Transmission Properties by Means of theGuarded-Hot-Plate ApparatusC390 Practice for Sampling and Acceptance of Thermal Insulation LotsC518 Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter ApparatusC687 Practice for Determination of Thermal
8、Resistance of Loose-Fill Building InsulationC870 Practice for Conditioning of Thermal Insulating MaterialsC1104/C1104M Test Method for Determining the Water Vapor Sorption of Unfaced Mineral Fiber InsulationC1304 Test Method for Assessing the Odor Emission of Thermal Insulation MaterialsC1338 Test M
9、ethod for Determining Fungi Resistance of Insulation Materials and FacingsC1363 Test Method for Thermal Performance of Building Materials and EnvelopeAssemblies by Means of a Hot BoxApparatusC1374 Test Method for Determination of Installed Thickness of Pneumatically Applied Loose-Fill Building Insul
10、ationC1574 Guide for Determining Blown Density of Pneumatically Applied Loose-Fill Mineral Fiber Thermal InsulationC1617 Practice for Quantitative Accelerated Laboratory Evaluation of Extraction Solutions Containing Ions Leached fromThermal Insulation on Aqueous Corrosion of MetalsC1630 Guide for De
11、velopment of Coverage Charts for Loose-Fill Thermal Building InsulationsE136 Test Method for Behavior of Materials in a Vertical Tube Furnace at 750CE970 Test Method for Critical Radiant Flux of Exposed Attic Floor Insulation Using a Radiant Heat Energy SourceG1 Practice for Preparing, Cleaning, and
12、 Evaluating Corrosion Test Specimens3. Terminology3.1 DefinitionsFor definitions of terms used in this specification, refer to Terminology C168.3.2 Definitions of Terms Specific to This Standard:1 This specification is under the jurisdiction ofASTM Committee C16 on Thermal Insulation and is the dire
13、ct responsibility of Subcommittee C16.23 on Blanket and LooseFill Insulation.Current edition approved Sept. 1, 2011Sept. 1, 2017. Published September 2011.September 2017. Originally approved 1973. Last previous edition approved in 20072011as C764 07.C764 11. DOI: 10.1520/C0764-11.10.1520/C0764-17.2
14、For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to p
15、rovide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof t
16、he standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.2.1 settled densityThe mass per unit volume of a loose-fill insulation after which time or forces, or both, h
17、ave exerted theireffect upon thickness.3.2.1.1 DiscussionThe settled density is determined using long term aging studies in attics.4. Classification4.1 The nodulated mineral fiber thermal insulation shall be of the following types and classes:4.1.1 Type IPneumatic application.4.1.2 Type IIPoured app
18、lication.5. Ordering Information5.1 Both types of nodulated mineral fiber thermal insulation are intended for use as thermal insulation in open spaces, such asattics and enclosed spaces, such as walls, in housing and buildings at ambient temperatures. Type I is used for pneumaticapplication (blown o
19、r conveyed by an air stream through a hose and discharged over the area to be insulated). Type II is used forapplication by pouring in place.6. Materials and Manufacture6.1 Basic MaterialThe basic material shall be fibers made from mineral substances such as rock, slag, or glass processed fromthe mo
20、lten state into an incombustible fibrous form.6.2 ManufactureThe fibers shall be mechanically processed into nodules, and are permitted to be treated to provide improvedprocessing and handling characteristics suitable for installation by pouring or pneumatic applications.7. Physical Properties7.1 Th
21、ermal CharacteristicsThe standard thermal resistance values normally recommended for open application areexpressed in Fhft2/Btu (Km2/W). Typical values are shown in Table 1. R values others than those listed in Table 1 shall be asagreed upon between the supplier and the purchaser. The thermal resist
22、ance R for the average of any (four) randomly selectedsamples shall not be more than 5 % below the mutually agreed upon R value when tested in accordance with 12.2, nor shall anysingle specimen be more than 10 % below the mutually agreed upon R value.7.2 Critical Radiant FluxMineral fiber loose fill
23、 when tested in accordance with 12.3 shall have a critical radiant flux-flamepropagation resistance 0.12 W/cm2 (.11 Btu/ft2 s).7.3 Combustion CharacteristicsMineral fiber loose fill when tested in accordance with 12.4 shall not have a recordedtemperature rise of more than 54F (30C); shall have no fl
24、aming after the first 30 s; and, if the specimen weight loss exceeds 50 %TABLE 1 Coverage ChartNOTE 1Chart is occasionally given in metric units.R Value at 75F MeanTemperature Maximum Net Coverage Minimum Thickness Minimum Weight per ft2To obtain an insulationresistance (R) of:hft2FBtuMinimum bags p
25、er 1000 ft2of net area (bags/MSF)Maximum ft2 coverageper 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:111315192226303338444960SidewallsA : RA Optional information for produc
26、ts intended for sidewall application.C764 172during the test, the recorded temperature of the specimen during the test shall not rise above the furnace air temperature at thebeginning of the test, and there shall be no flaming of the specimen.7.4 Water Vapor SorptionThe water vapor sorption of the i
27、nsulation shall not be more than 5 % by weight when tested inaccordance with 12.5.7.5 Odor EmissionA detectable odor of a strong objectionable nature recorded by more than two of the five panel membersshall constitute rejection of the material when tested in accordance with 12.6.7.6 CorrosivenessWhe
28、n tested in accordance with 12.7, the metal plates that are in contact with the insulation shall show nocorrosion greater than the comparative plates that are in contact with sterile cotton that has been tested in the same manner.7.7 Fungi ResistanceWhen tested in accordance with 12.812.9, the insul
29、ation shall have growth no greater than that observedon the white birch tongue depressor comparative material.8. Other Requirements8.1 Qualification RequirementsThe following requirements are generally emphasized for purposes of initial material productrequirements:8.1.1 Thermal resistance,8.1.2 Cri
30、tical 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.8.2 Inspection RequirementsThe following requirements are generally emphasized for purposes of acceptance sampling oflots of qualified thermal insulation:
31、8.2.1 Minimum bag weight, and8.2.2 Workmanship.9. Workmanship9.1 Mineral fiber nodulated insulation shall be free of foreign materials and shall be clean and dry. The insulation shall not havevisible defects that will adversely affect the service quality.10. Significance and Use10.1 This specificati
32、on covers products that are used in buildings. While products that comply with this specification are usedin various constructions, they are adaptable primarily, but not exclusively, to wood frame constructions.11. Sampling and Conditioning11.1 Sampling of the insulation shall be in accordance with
33、Practice C390. Specific provisions for sampling shall be agreed uponbetween the purchaser and supplier.11.2 Condition the test samples in accordance with Practice C870.12. Test Methods12.1 Blown DensityDetermine the blown density in accordance with Guide C1574.12.2 Thermal ResistanceUsing samples pr
34、epared in accordance with 12.1 and adjusted to the settled density, the thermalconductivity or thermal conductance shall be determined in accordance with Test Method C518, Test Method C177, or derivedfrom measurements made by Test Method C1363. The mean temperature shall be 75F (23.9C) and the tempe
35、rature differenceshall be a minimum of 40F (22C). The thermal resistance shall then be calculated from the thermal conductance values usingPractice C687. See Note 1.NOTE 1The thermal resistance is a function of mean temperature. As an option, determine the thermal resistance at additional mean tempe
36、ratures asagreed upon by the purchaser and the manufacturer.12.3 Critical Radiant FluxThe critical radiant flux of the insulation shall be determined in accordance withTest Method E970.12.4 Behavior of Materials in a Vertical Tube Furnace at 1382F (750C)The behavior of mineral fiber loose-fill insul
37、ationin a vertical tube furnace at 1382F (750C) shall be determined in accordance with Test Method E136.12.5 Water Vapor SorptionThe water vapor sorption of the test specimen shall be determined in accordance with Test MethodC1104/C1104M.12.6 Odor EmissionDetermine the odor emission in accordance wi
38、th Test Method C1304.C764 17312.7 Corrosiveness:12.7.1 ScopeThis test method provides a qualitative measure of the corrosiveness of mineral fiber insulation by comparisonto a control.12.7.2 Summary of Test Method:12.7.2.1 Individually sandwich five each of specially cleaned steel, copper, and alumin
39、um test plates between pieces ofinsulation. Hold the insulation uniformly against each side of the test plate with wire screens and rubber bands.12.7.2.2 Sandwich an equal number of cleaned metal test plates between pieces of washed sterile cotton in an identical manner.12.7.2.3 Vertically suspend t
40、he samples in a humidity test chamber at 95 6 3 % relative humidity and temperature of 120 63F (49 6 2C) for time periods determined by the type of metal being tested. Steel is tested for 96 6 2 h. Copper and aluminumare tested for 720 6 5 h.12.7.2.4 After the appropriate test period, compare the te
41、st plates exposed to the insulation to the control plates exposed tosterile cotton for severity of corrosion. The insulation is considered to have passed this test if the corrosion attributed to theinsulation is not significantly worse than that of the washed sterile cotton controls. The criterion f
42、or acceptance is predeterminedthrough the use of non-parametric statistics and a 90 % confidence level ( = 0.10).12.7.3 Significance and Use:12.7.3.1 The fiber composition and the type of binder used in the manufacture of mineral fiber insulation sometimes create apotential for corrosion on certain
43、metals in the presence of liquid water or water vapor.12.7.3.2 This test method is used to determine the relative corrosion potential of mineral fiber insulation on specific metals underhigh humidity conditions.12.7.4 Materials:12.7.4.1 Metal Test Plates, with dimensions of 1 by 4 6 14 in. (25 by 10
44、0 mm). Steel plates shall be 0.02 6 0.005 in. (0.5 mm)thick, bright No. 2 finish, cold-rolled low-carbon strip steel, quarter hard, temper No. 3. The aluminum plates shall be 0.025 60.005 in. (0.6 mm) thick, type 3003-0. Copper plates shall be 0.032 6 0.005 in. (0.8 mm) thick, in accordance with Spe
45、cificationB152/B152M type ETP, No. 110 soft copper.12.7.4.2 Woven Wire Screen, 112 6 14 by 412 6 14 in. (114 by 38 mm), made of Type 304 stainless steel, 0.063 6 0.005 in.(1.60 mm) wire, 716 6 116 in. (11 mm) open-square grid.12.7.4.3 Rubber Bands, No. 12.12.7.4.4 Humidity Test Chamber clean, well m
46、aintained, and capable of controlling temperature at 120 6 3F (49 6 2C) andhumidity 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 rectangular compartment or well with interior dimensions o
47、f 412 by 112 by 112in. (114 by 38 by 38 mm) with one 412 by 112 in. (114 by 38 mm) opening.12.7.5 Test SpecimenA test specimen shall consist of a layer of loose-fill insulation held in place on each side of the metaltest plate by a cheesecloth wrap. The loose-fill insulation is compressed uniformly
48、against each side of the metal test plate usingwoven wire screening and a No. 12 rubber band at each end so that there is approximately a 412 by 112 by 12-in. (114- by 38-by 13-mm) thick layer of insulation on each side of the metal test plate.12.7.6 Test Method:12.7.6.1 Clean the metal test plates
49、until the surface is free of water breaks. Clean the steel test plates first by 5 min of vapordegreasing (using 1-1-1 trichlorethane or chloroprene). After degreasing, wipe residue from both sides of the coupons using paperlaboratory wipes. Then immerse for 15 min in a hot caustic solution (15 % KOH by volume), rinse thoroughly in distilled water,and immediately dry using paper laboratory wipes. Degrease the copper plates in the same manner and then further clean in a hotacidic solution (10 % nitric acid by v
