1、Designation: C991 15C991 16Standard Specification forFlexible Fibrous Glass Insulation for Metal Buildings1This standard is issued under the fixed designation C991; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last r
2、evision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () 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 for
3、usein metal building roofs and walls.1.2 The basic insulation blanket is designed to be post-processed by a laminating process that applies an adhesive bondedfacing.1.3 The thermal values measured in accordance with this specification for both pre-processed and post-processed insulation arefor the i
4、nsulation only and do not include the effects of air-film surface resistance, changes in mean temperature, or compressionof insulation at the framing members of the building, through metal conductance of fasteners and other parallel heat-transfer pathsdue to design or installation techniques.1.4 The
5、 values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.5 This standard does not purport to address all of the safety concerns, if any, associat
6、ed with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatoryrequirements prior to use.2. Referenced Documents2.1 ASTM Standards:2C167 Test Methods for Thickness and Density of Blanket or Batt
7、Thermal InsulationsC168 Terminology Relating to Thermal InsulationC177 Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of theGuarded-Hot-Plate ApparatusC390 Practice for Sampling and Acceptance of Thermal Insulation LotsC518 Test Method for Steady-Sta
8、te Thermal Transmission Properties by Means of the Heat Flow Meter ApparatusC653 Guide for Determination of the Thermal Resistance of Low-Density Blanket-Type Mineral Fiber InsulationC665 Specification for Mineral-Fiber Blanket Thermal Insulation for Light Frame Construction and Manufactured Housing
9、C755 Practice for Selection of Water Vapor Retarders for Thermal InsulationC1104/C1104M Test Method for Determining the Water Vapor Sorption of Unfaced Mineral Fiber InsulationC1136 Specification for Flexible, Low Permeance Vapor Retarders for Thermal InsulationC1304 Test Method for Assessing the Od
10、or Emission of Thermal Insulation MaterialsC1338 Test Method for Determining Fungi Resistance of Insulation Materials and FacingsC1617 Practice for Quantitative Accelerated Laboratory Evaluation of Extraction Solutions Containing Ions Leached fromThermal Insulation on Aqueous Corrosion of MetalsE84
11、Test Method for Surface Burning Characteristics of Building MaterialsE136 Test Method for Behavior of Materials in a Vertical Tube Furnace at 750CE2988 Practice for Specimen Preparation and Mounting of Flexible Fibrous Glass Insulation for Metal Buildings to AssessSurface Burning Characteristics1 Th
12、is specification is under the jurisdiction ofASTM Committee C16 on Thermal Insulation and is the direct responsibility of Subcommittee C16.23 on Blanket and LooseFill Insulation.Current edition approved April 15, 2015May 1, 2016. Published May 2015June 2016. Originally approved in 1983. Last previou
13、s edition approved in 20082015 asC991 08C991 15.1. DOI: 10.1520/C0991-15.10.1520/C0991-16.2 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 Summ
14、ary page on the ASTM website.This document is not an ASTM standard and is intended only to provide 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
15、 that users consult prior editions as appropriate. In all cases only the current versionof the 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 States12.2 Other Reference
16、d Document:CAN/ULC-S102 Standard Method of Test for Surface Burning Characteristics of Building Materials and Assemblies33. Terminology3.1 DefinitionsFor definitions of terms relating to insulation, refer to Terminology C168.4. Classification4.1 The flexible fibrous glass insulation is furnished in
17、two types, as follows:4.1.1 Type IGlass processed from the molten state into fibrous form, bonded with a thermosetting resin, and formed into ablanket or batt.4.1.2 Type IIType I material supplied with a suitable facing adhered to one surface.NOTE 1Facing properties are not part of this specificatio
18、n. The designer is referred to Practice C755 and Specification C1136 for guidance in selectingwater vapor permeance and other physical property requirements.5. Ordering Information5.1 Type I material shall be ordered by specifying thermal resistance value, length, and width.5.2 Type II material shal
19、l be ordered by specifying thermal resistance value, type of facing, facing permeance, length, width,number of tabs, and tab width.5.3 Certification, when required, shall be in accordance with Section 11.6. Physical Properties6.1 Type 1 Material:6.1.1 The unfaced insulation shall meet the following
20、requirements:6.1.1.1 Thermal ResistanceThe average R-value of nine tests, one each performed on three randomly selected specimens fromeach of three rolls, shall be not less than 103 % of the R-value agreed upon by the purchaser and the supplier.(1) The average thickness of each roll shall be determi
21、ned byTest Method C167 and the lesser of measured or labeled thicknesstested.(2) The thermal resistance of the pre-processed (unlaminated) insulation shall be determined in accordance with Guide C653,using either Test Method C177 or C518 at a mean temperature of 75F (23.9C) with a minimum temperatur
22、e difference of 40F(22C) for determining the apparent thermal conductivity.NOTE 2See Guide C653. The thermal resistance is a function of temperature. As an option, the thermal resistance may be determined at additionaltemperatures as agreed upon by the purchaser and the manufacturer.6.1.2 Surface Bu
23、rning CharacteristicsThe surface burning characteristics shall be determined unfaced insulation shall exhibita flame spread index not exceeding 25 and a smoke developed index not exceeding 50 when tested in accordance with either TestMethod E84. For Canada, test in accordance with Test Method CAN/UL
24、C-S102. When the referenced, with specimens preparedand mounted per Practice E2988Canadian document in this specification is referred to in applicable Canadian building codes, theeditions, referenced by those building codes, shall govern. Results shall be no greater than:, or with CAN/ULC S102, depe
25、ndingon the applicable code requirements.Flame spread 25Smoke developed 506.1.3 Combustion CharacteristicsThe material shall pass the requirements of Test Method E136.6.1.4 Water Vapor SorptionThe water vapor sorption from exposure to water vapor shall not be greater than 0.2 % by volumewhen determi
26、ned in accordance with the procedure set forth in Test Method C1104/C1104M.6.1.5 Fungi ResistanceWhen tested in accordance with the procedure set forth in Test Method C1338, the insulation shallexhibit no growth.6.1.6 CorrosivenessCorrosiveness: When tested in accordance with the procedure in Specif
27、ication C665, the metal plates incontact with the insulation shall show no greater corrosion than that observed on the comparative plates in contact with sterilecotton.6.1.6.1 When tested in accordance with the procedure in Specification C665, the metal plates in contact with the insulation shallsho
28、w no greater corrosion than that observed on the comparative plates in contact with sterile cotton.6.1.6.2 Alternative Test (for steel only)When tested in accordance with the procedure in Practice C1617, the mass losscorrosion rate of the unfaced insulation extract shall not exceed that of the 5 ppm
29、 chloride solution.NOTE 3The testing of other metals such as copper and aluminum is being evaluated using Practice C1617. The task group will continue to investigatethe potential for using this practice as an alternative to section 13.8 of Specification C665 for these metals.3 Available from Underwr
30、iters Laboratories (UL), 333 Pfingsten Rd., Northbrook, IL 60062-2096, http:/.C991 1626.1.7 Odor EmissionWhen tested in accordance with Test Method C1304, the insulation shall not emit a detectable odorobjectionable to more than two of the five panel members.6.1.8 Dimensional TolerancesThe average m
31、easured length and width shall not differ from the manufacturers standarddimensions, when determined in accordance with Test Methods C167, (Note 34) by more than the following:Length, 0 in. (0 mm)Width, 18 in. (3 mm)NOTE 4Normally, a slight excess in all dimensions will be permitted. However, the pu
32、rchaser may elect to specify a maximum tolerance to meetfurther processing requirements.6.2 Type II Material:6.2.1 Type II shall consist of a Type I blanket laminated with a facing.6.2.1.1 The facing shall meet the requirements of Specification C1136 for corrosion resistance, fungi resistance, andno
33、n-leachability (permanence) of flame retardants, as certified by the facing supplier.6.2.2 The faced insulation shall meet the following requirements:6.2.2.1 Thermal ResistanceThe average R-value of nine tests, one each performed on three randomly selected specimens fromeach of three rolls, shall be
34、 not less than 95 % of the R-value agreed upon by the purchaser and the supplier.(1) The average thickness of each roll shall be determined by Test Method C167 and the lesser of measured or labeledthickness tested.(2) The thermal resistance of the post- laminated insulation shall be determined in ac
35、cordance with Guide C653, using eitherTest Method C177 or Test Method C518 at 75F (23.9C) with a minimum temperature difference of 40F (22C) for determiningthe apparent thermal conductivity.6.2.2.2 Surface Burning CharacteristicsThe faced insulation shall exhibit a flame spread index not exceeding 2
36、5 and a smokedeveloped index no exceeding 50 when tested on the facing side in accordance with either Test Method E84, with specimensprepared and mounted per Practice E2988, or with CAN/ULC S102, depending on the applicable code requirements.6.2.2.3 Fungi ResistanceThe adhesive shall be tested separ
37、ately per Test Method C1338 by the supplier and shall exhibit nogrowth, as certified by the adhesive supplier.6.2.2.4 IntegrityLaminated insulation shall not exhibit obvious oxidation/corrosion, discoloration or delamination of facing,nor exhibit lack of adhesion of facing to insulation when inspect
38、ed visually.6.2.2.5 Dimensional TolerancesThe average measured length and width shall not differ from the manufacturers standarddimensions, when determined in accordance with Test Methods C167, (Note 45) by more than the following:Length, 0 in. (0 mm)Width, 18 in. (3 mm)NOTE 5Normally, a slight exce
39、ss in all dimensions will be permitted. However, the purchaser may elect to specify a maximum tolerance to meetfurther processing requirements.7. Workmanship7.1 Both Type I and Type II material shall exhibit good workmanship and shall not have visible defects that adversely affectits serviceability.
40、8. Sampling8.1 Quality control records, maintained by the manufacturer, will usually suffice in the relationship between the purchaser andthe manufacturer. If they mutually agree to accept lots on the basis of quality control records, no further sampling is required.8.2 If the above procedure is not
41、 acceptable, sampling shall be in conformance with Practice C390.9. Inspection9.1 Inspection of the material shall be agreed upon between the purchaser and the supplier as part of the purchase contract.10. Rejection and Rehearing10.1 Material that fails to conform to the requirements of this specifi
42、cation shall constitute cause for rejection. Rejection shallbe reported to the producer or supplier promptly and in writing.10.2 The producer or supplier shall have the option to reinspect rejected shipments and resubmit the entire lot for inspectionand resampling after the removal and replacement o
43、f nonconforming portions.11. Certification11.1 When specified in the purchase order or contract, a producers, suppliers or independent third partys certification shallbe furnished to the purchaser indicating that the material was manufactured, sampled, tested, and inspected in accordance with thissp
44、ecification and has been found to meet the requirements. When specified in the purchase order or contract, a report of the testresults shall be furnished.C991 16312. Health and Safety Hazards12.1 The manufacturer shall provide the users with information regarding any hazards and recommended protecti
45、ve measuresto be employed for safe installation and use of the material.13. Product Marking13.1 Unless otherwise specified, the product package shall be marked with the sellers name and designation, length, width,thickness, R-value, total number of square feet, manufacturing date code, surface burni
46、ng characteristics and, if applicable, typeof facing.14. Packaging14.1 Unless otherwise agreed or specified between the purchaser and the manufacturer or seller, the insulation shall be packedin the manufacturers standard commercial container.14.2 If there is residual moisture in the product at the
47、time of packaging, the package shall be suitably vented to allow for thedissipation of the moisture.15. Storage15.1 The material shall be stored in accordance with the manufacturers recommendations unless otherwise agreed uponbetween the purchaser and manufacturer.15.2 If there are no manufacturers
48、recommended storage requirements, the material shall be stored in a dry location thatprotects the package from direct sunlight, weather and temperature extremes.16. Keywords16.1 faced insulation; metal building; thermal insulationASTM International takes no position respecting the validity of any pa
49、tent rights asserted in connection with any item mentionedin this standard. Users of this standard 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 not revised, either reapproved or withdrawn.Your comments are invited either for revision of this standard or for addition
