1、Designation: C 991 08Standard Specification forFlexible Fibrous Glass Insulation for Metal Buildings1This standard is issued under the fixed designation C 991; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisi
2、on. 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 the classification, composition,and physical properties of flexible fibrous glass insulation foruse in
3、 metal building roofs and walls.1.2 The basic insulation blanket is designed to be post-processed by a laminating process that applies an adhesivebonded facing.1.3 The thermal values measured in accordance with thisspecification for both pre-processed and post-processed insu-lation are for the insul
4、ation only and do not include the effectsof air-film surface resistance, changes in mean temperature, orcompression of insulation at the framing members of thebuilding, through metal conductance of fasteners and otherparallel heat-transfer paths due to design or installation tech-niques.1.4 The valu
5、es stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.5 This standard does not purport to address all of thesafety concerns, if any, associated with
6、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 requirements prior to use.2. Referenced Documents2.1 ASTM Standards:2C 167 Test Methods for Thickness and Density of Blanketor Batt Therm
7、al InsulationsC 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 ThermalInsulation LotsC 518 Test Method for Steady-Stat
8、e Thermal TransmissionProperties by Means of the Heat Flow Meter ApparatusC 653 Guide for Determination of the Thermal Resistanceof Low-Density Blanket-Type Mineral Fiber InsulationC 665 Specification for Mineral-Fiber Blanket Thermal In-sulation for Light Frame Construction and ManufacturedHousingC
9、 755 Practice for Selection of Water Vapor Retarders forThermal InsulationC 1104/C 1104M Test Method for Determining the WaterVapor Sorption of Unfaced Mineral Fiber InsulationC 1136 Specification for Flexible, Low Permeance VaporRetarders for Thermal InsulationC 1258 Test Method for Elevated Temper
10、ature and Humid-ity Resistance of Vapor Retarders for InsulationC 1304 Test Method for Assessing the Odor Emission ofThermal Insulation MaterialsC 1338 Test Method for Determining Fungi Resistance ofInsulation Materials and FacingsE84 Test Method for Surface Burning Characteristics ofBuilding Materi
11、alsE 136 Test Method for Behavior of Materials in a VerticalTube Furnace at 750C2.2 Other Referenced Document:CAN/ULC-S102 Standard Method of Test for SurfaceBurning Characteristics of Building Materials andAssem-blies33. Terminology3.1 DefinitionsFor definitions of terms relating to insula-tion, re
12、fer to Terminology C 168.4. Classification4.1 The flexible fibrous glass insulation is furnished in twotypes, as follows:4.1.1 Type IGlass processed from the molten state intofibrous form, bonded with a thermosetting resin, and formedinto a blanket or batt.4.1.2 Type IIType I material supplied with
13、a suitablefacing adhered to one surface.NOTE 1Facing properties are not part of this specification. The1This 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
14、approved May 1, 2008. Published May 2008. Originallyapproved in 1983. Last previous edition approved in 2003 as C 991 03.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refe
15、r to the standards Document Summary page onthe ASTM website.3Available from Underwriters Laboratories (UL), 333 Pfingsten Rd., North-brook, IL 60062-2096, http:/.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.designer is referred to
16、 Practice C 755 and Specification C 1136 forguidance in selecting water vapor permeance and other physical propertyrequirements.5. Ordering Information5.1 Type I material shall be ordered by specifying thermalresistance value, length, and width.5.2 Type II material shall be ordered by specifying the
17、rmalresistance value, type of facing, facing permeance, length,width, number of tabs, and tab width.5.3 Certification, when required, shall be in accordance withSection 11.6. Physical Properties6.1 Type 1 Material:6.1.1 Thermal ResistanceThe thermal resistance of thepre-processed insulation shall be
18、 determined in accordancewith Guide C 653. The average R-value from nine randomlyselected specimens, three specimens from each of three rolls,shall not be less than 103 % of the R-value agreed upon by thepurchaser and the supplier. Use Test Method C 177 or C 518 at75F (23.9C) with a minimum temperat
19、ure difference of 40F(20C) for determining apparent thermal conductivity. Use thefull roll method from Test Method C 167 to determine theaverage thickness for each roll and evaluate at the lesser ofmeasured or label thickness.NOTE 2See Guide C 653. The thermal resistance is a function oftemperature.
20、 As an option, the thermal resistance may be determined atadditional temperatures as agreed upon by the purchaser and the manu-facturer.6.1.2 Surface Burning CharacteristicsThe surface burn-ing characteristics shall be determined in accordance with TestMethod E84. For Canada, test in accordance with
21、 CAN/ULC-S102. Results shall be no greater than:Flame spread 25Smoke developed 506.1.3 Combustion CharacteristicsThe material shall passthe requirements of Test Method E 136.6.1.4 Water Vapor SorptionThe water vapor sorptionfrom exposure to water vapor shall not be greater than 0.2 % byvolume when d
22、etermined in accordance with the procedure setforth in Test Method C 1104/C 1104M.6.1.5 Fungi ResistanceWhen tested in accordance withthe procedure set forth in Test Method C 1338, the insulationshall exhibit no growth.6.1.6 CorrosivenessWhen tested in accordance with theprocedure in Specification C
23、 665, the metal plates in contactwith the insulation shall show no greater corrosion than thatobserved on the comparative plates in contact with sterilecotton.6.1.7 Odor EmissionWhen tested in accordance with TestMethod C 1304, the insulation shall not emit a detectable odorobjectionable to more tha
24、n two of the five panel members.6.1.8 Dimensional TolerancesThe average measuredlength and width shall not differ from the manufacturersstandard dimensions, when determined in accordance with TestMethods C 167,(Note 3) by more than the following:Length, 0 in. (0 mm)Width, 18 in. (3 mm)NOTE 3Normally
25、, a slight excess in all dimensions will be permitted.However, the purchaser may elect to specify a maximum tolerance to meetfurther processing requirements.6.2 Type II Material:6.2.1 Type II shall be faced on one side with a suitablefacing and exhibit the following.6.2.2 Thermal ResistanceThe therm
26、al resistance of thepost-processed insulation shall be determined in accordancewith Guide C 653. The average R-value from nine randomlyselected specimens, three specimens from each of three rolls,shall not be less than 95 % of the R-value agreed upon by thepurchaser and the supplier. Use Test Method
27、 C 177 or C 518 at75F (23.9C) with a minimum temperature difference of 40F(20C) for determining apparent thermal conductivity. Use TestMethods C 167 to determine the average thickness for eachroll.6.2.3 Surface Burning CharacteristicsDetermine the sur-face burning characteristics on the facing side
28、of the compositematerial. in accordance with Test Method E84. For Canada,test in accordance with CAN/ULC-S102. Results shall be nogreater than:Flame spread 25Smoke developed 506.2.4 Combustion CharacteristicsThe base insulation ma-terial shall pass the requirements of Test Method E 136.6.2.5 Water V
29、apor SorptionThe water vapor sorption ofthe base material shall not be greater than 0.2 % by volumewhen determined in accordance with the procedure set forth inTest Method C 1104/C 1104M.6.2.6 Fungi ResistanceWhen tested in accordance withthe procedure set forth in Test Method C 1338, the insulation
30、and the facing shall exhibit no growth.6.2.7 CorrosivenessWhen the base insulation is tested inaccordance with the procedure in Specification C 665, themetal plates in contact with the insulation shall show no greatercorrosion than that observed on the comparative plates incontact with sterile cotto
31、n6.2.8 Odor EmissionWhen tested in accordance with TestMethod C 1304, the insulation shall not emit a detectable odorobjectionable to more than two of the five panel members.6.2.9 Dimensional TolerancesThe average measuredlength and width shall not differ from the manufacturersstandard dimensions, w
32、hen determined in accordance with TestMethods C 167,(Note 3) by more than the following:Length, 0 in. (0 mm)Width, 18 in. (3 mm)6.2.10 Humid AgingThe faced material, when tested inaccordance with the procedures in Test Method C 1258, shallnot exhibit (a) corrosion of the facing, (b) delamination of
33、thefacing, or (c) lack of adhesion of facing to insulation.7. Workmanship7.1 Both Type I and Type II material shall exhibit goodworkmanship and shall not have visible defects that adverselyaffect its serviceability.8. Sampling8.1 Quality control records, maintained by the manufac-turer, will usually
34、 suffice in the relationship between theC991082purchaser and the manufacturer. If they mutually agree toaccept lots on the basis of quality control records, no furthersampling is required.8.2 If the above procedure is not acceptable, sampling shallbe in conformance with Practice C 390.9. Inspection9
35、.1 Inspection of the material shall be agreed upon betweenthe purchaser and the supplier as part of the purchase contract.10. Rejection and Rehearing10.1 Material that fails to conform to the requirements ofthis specification shall constitute cause for rejection. Rejectionshall be reported to the pr
36、oducer or supplier promptly and inwriting.10.2 The producer or supplier shall have the option toreinspect rejected shipments and resubmit the entire lot forinspection and resampling after the removal and replacementof nonconforming portions.11. Certification11.1 When specified in the purchase order
37、or contract, aproducers, suppliers or independent third partys certificationshall be furnished to the purchaser indicating that the materialwas manufactured, sampled, tested, and inspected in accor-dance with this specification and has been found to meet therequirements. When specified in the purcha
38、se order or contract,a report of the test results shall be furnished.12. Health and Safety Hazards12.1 The manufacturer shall provide the users with infor-mation regarding any hazards and recommended protectivemeasures to be employed for safe installation and use of thematerial.13. Product Marking13
39、.1 Unless otherwise specified, the product package shallbe marked with the sellers name and designation, length,width, thickness, R-value, total number of square feet, manu-facturing date code, surface burning characteristics and, ifapplicable, type of facing.14. Packaging14.1 Unless otherwise agree
40、d or specified between thepurchaser and the manufacturer or seller, the insulation shall bepacked in the manufacturers standard commercial container.14.2 If there is residual moisture in the product at the timeof packaging, the package shall be suitably vented to allow forthe dissipation of the mois
41、ture.15. Storage15.1 The material shall be stored in accordance with themanufacturers recommendations unless otherwise agreedupon between the purchaser and manufacturer.15.2 If there are no manufacturers recommended storagerequirements, the material shall be stored in a dry location thatprotects the
42、 package from direct sunlight, weather and tem-perature extremes.16. Keywords16.1 faced insulation; metal building; thermal insulationASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standa
43、rd are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif
44、 not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, whi
45、ch you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).C991083
