1、Designation: E2988 15Standard Practice forSpecimen Preparation and Mounting of Flexible FibrousGlass Insulation for Metal Buildings to Assess SurfaceBurning Characteristics1This standard is issued under the fixed designation E2988; the number immediately following the designation indicates the year
2、oforiginal adoption or, in the case of revision, the year of last revision. 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 practice describes a procedure for specimen prepa-ra
3、tion and mounting when testing Flexible Fibrous GlassInsulation for Metal Buildings to assess flame spread andsmoke development as surface burning characteristics usingTest Method E84.1.2 This practice applies to products described in Specifi-cation C991.1.3 This practice provides instructions for t
4、he testing of bothun-faced insulation (Specification C991 Type I) and faceinsulation (Specification C991 Type II).1.4 This practice does not provide pass/fail criteria that canbe used as a regulatory tool.1.5 Use the values stated in inch-pound units as the standardin referee decisions. The values i
5、n the SI system of units aregiven in parentheses, for information only; see IEEE/ASTMSI-10 for further details.1.6 This fire standard cannot be used to provide quantitativemeasures.1.7 Fire testing of products and materials is inherentlyhazardous and adequate safeguards for personnel and propertysha
6、ll be employed in conducting these tests. Fire testinginvolves hazardous materials, operations and equipment.1.8 This practice gives instructions on specimen preparationand mounting but the fire-test-response method shall be con-ducted in accordance with Test Method E84. See also Section8 for inform
7、ation on operator safety.1.9 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 limitations pri
8、or to use.2. Referenced Documents2.1 ASTM Standards:2C168 Terminology Relating to Thermal InsulationC991 Specification for Flexible Fibrous Glass Insulation forMetal BuildingsE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE176 Terminology of Fire StandardsIEEE/ASTM SI-10 Ame
9、rican National Standard for Use ofthe International System of Units (SI): The Modern MetricSystem3. Terminology3.1 DefinitionsFor definitions of terms used in this prac-tice and associated with insulation issues, refer to terminologycontained in Terminology C168 or Specification C991. Fordefinitions
10、 of terms used in this practice and associated withfire issues, refer to Terminology E176.3.2 Definitions of Terms Specific to This Standard:3.2.1 metal rods, nas related to fire testing, steel rods,14in. (6.3 mm) diameter and between 23 and 24 in. (0.58 and 0.61m) long.4. Summary of Practice4.1 Thi
11、s practice describes a procedure for specimen prepa-ration and mounting when testing flexible fibrous glass insu-lation for metal buildings to assess flame spread and smokedevelopment as surface burning characteristics using TestMethod E84.4.2 Flexible fibrous glass insulation for metal buildings is
12、 afibrous glass insulation, furnished in two types as described inSpecification C991. Type I is an un-faced insulation blanket.Type II is a Type I blanket that is post-processed by alaminating process that applies an adhesive bonded facing toone surface.1This practice is under the jurisdiction of AS
13、TM Committee E05 on FireStandards and is the direct responsibility of Subcommittee E05.22 on SurfaceBurning.Current edition approved Feb. 1, 2015. Published February 2015. DOI: 10.1520/E2988-152For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at se
14、rviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14.3 Flexible fibrous glass insulation for metal buildi
15、ngsshall be tested in accordance with the specimen preparation andmounting procedures described in this practice, using TestMethod E84.5. Significance and Use5.1 Flexible fibrous glass insulation for metal buildings isevaluated in accordance with Test Method E84 to comply withbuilding code requireme
16、nts. This practice describes, in detail,specimen mounting procedures for Type I and Type II metalbuilding insulation materials.5.2 The material to be tested shall be representative of theglass fiber blanket, facing and bonding adhesive used in actualfield installations.5.3 The limitations for this p
17、rocedure are those associatedwith Test Method E84.6. Specimen Preparation and Mounting6.1 Test specimens shall consist of 24.5 6 0.5 ft (7.47 60.152 m) continuous, unbroken lengths of the blanket insula-tion. The width shall be between 20 and 24 in. (0.50 and 0.60m) with a thickness between 2.0 and
18、4.0 in. (50 and 100 mm).6.2 The specimens shall be supported by nominally straightmetal rods inserted through the material and positioned suchthat the bottom of the rod is approximately14 in. (6.3 mm)from the surface to be exposed to the flame. The steel rods shallbe14 in. (6.3 mm) diameter, span th
19、e width of the tunnel andbe spaced at approximately 2 ft (0.6 m) intervals down thelength of the tunnel, including a rod at each end of thespecimen.6.3 For Type I materials, the un-faced surface shall be thesurface exposed to the flame.6.4 For Type II materials, the faced surface shall be thesurface
20、 exposed to the flame.6.4.1 For Type II material, a minimum of two specimensshall be tested. One specimen shall be tested with a longitudi-nal slit down the length of the sample oriented between theburners. The slit is to be of such depth as to expose the bondingadhesive and glass fiber insulation.
21、The other specimen shall betested with the facing without a slit.6.5 When lowering the tunnel lid, care shall be taken toachieve contact with the specimen but to not compress thespecimen unduly.7. Testing of Specimens7.1 All testing shall be conducted using the proceduredescribed in Test Method E84.
22、8. Operator Safety8.1 The primary concerns for operator safety are associatedwith the fire-test-response procedure, which is described inTest Method E84, and not with the specimen preparationprocedure. Safety recommendations are included in TestMethod E84.9. Report9.1 Report the following informatio
23、n regarding the specificmounting procedure used:9.2 Which specimens were tested with the facing slit andwhich ones were tested with the facing without a slit.9.3 Report all the information required in the reportingsection of Test Method E84, including all observations, graphi-cal results and the val
24、ues of the flame spread index and of thesmoke developed index in each test.10. Keywords10.1 facing; fire; fire test; flame spread index; metal build-ing insulation; smoke developed index; slit; tunnelAPPENDIX(Nonmandatory Information)X1. COMMENTARYX1.1 IntroductionIt has been shown that the carefulr
25、eplication of realistic fire scenarios is the most appropriatemeans of fire testing of products and systems. However, this isnot always achievable within the confines of a standard testmethod.X1.2 The use of any standard fire test method intrinsicallycarries some limitations, including the source of
26、 heat or flame,the specimen size and orientation, the specimen location andthe fire-test-response characteristics measured.X1.3 Fire tests on flexible fibrous glass insulation for metalbuildings are often conducted by using Test Method E84.X1.3.1 The source of heat and flame in Test Method E84 aretw
27、o gas burners supplying approximately 300 000 BTU/h (87.9kW) onto the test specimen from underneath for a period of 10min.X1.3.2 The approximate specimen sizes in Test Method E84are 24 ft (7.3 m) long by 20 to 24 in. (508 to 610 mm) wide.the recommended specimen thickness height is up to 4 in. (102m
28、m).X1.3.3 The test specimen is placed below the lid of the testchamber at a specified location.E2988 152ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that
29、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 reapprove
30、d 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, which you may attend. If you feel
31、 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 repri
32、nts (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). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 153
