1、Designation: E2988 17 An American National StandardStandard 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 d
2、esignation indicates the year 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 p
3、rocedure for specimen prepa-ration 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 practi
4、ce provides instructions for the 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 r
5、eferee decisions. The values in 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
6、 for personnel and propertyshall 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
7、. See also Section8 for information 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, health, and environmental practices and deter-mine t
8、he applicability of regulatory limitations prior to use.1.10 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations is
9、sued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.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 ofB
10、uilding MaterialsE176 Terminology of Fire StandardsIEEE/ASTM SI-10 American 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 terminol
11、ogycontained in Terminology C168 or Specification C991. Fordefinitions 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 bet
12、ween 23 and 24 in. (0.58 and 0.61m) long.4. Summary of Practice4.1 This 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 TestM
13、ethod E84.1This practice is under the jurisdiction of ASTM Committee E05 on FireStandards and is the direct responsibility of Subcommittee E05.22 on SurfaceBurning.Current edition approved Nov. 1, 2017. Published December 2017. Originallyapproved in 2015. Last previous edition approved in 2015 as E2
14、988-15a. DOI:10.1520/E2988-172For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 10
15、0 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and R
16、ecommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.14.2 Flexible fibrous glass insulation for metal buildings is afibrous glass insulation, furnished in two types as described inSpecification C991. Type I is an un-faced insulation blanket.Type II is a T
17、ype I blanket that is post-processed by alaminating process that applies an adhesive bonded facing toone surface.4.3 Flexible fibrous glass insulation for metal buildingsshall be tested in accordance with the specimen preparation andmounting procedures described in this practice, using TestMethod E8
18、4.5. Significance and Use5.1 Flexible fibrous glass insulation for metal buildings isevaluated in accordance with Test Method E84 to comply withbuilding code requirements. This practice describes, in detail,specimen mounting procedures for Type I and Type II metalbuilding insulation materials.5.2 Th
19、e 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 procedure are those associatedwith Test Method E84.6. Specimen Preparation and Mounting6.1 Test specimens shall consist of 24.5 6 0.5
20、ft (7.47 60.152 m) continuous, unbroken lengths or broken, buttedend-to-end lengths of the blanket insulation. The width shall bebetween 20 and 24 in. (0.50 and 0.60 m) with a thicknessbetween 2.0 and 4.0 in. (50 and 100 mm).6.2 The specimens shall be supported by nominally straightmetal rods insert
21、ed 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 the width of the tunnel andbe spaced at approximately 2 ft (0.6 m) intervals down thelength of the tu
22、nnel, including a rod at each end of thespecimen.6.2.1 When testing butted end-to-end, each test specimenshall have a rod inserted 3 in. (76 mm) from each butted end,and evenly spaced rods shall be added to the section tomaintain the test specimen in a relatively flat position.6.3 For Type I materia
23、ls, the un-faced surface shall be thesurface exposed to the flame.6.4 For Type II materials, the faced surface shall be thesurface 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
24、 sample oriented between theburners. The slit is to be of such depth as to expose the bondingadhesive and glass fiber insulation. 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 comp
25、ress thespecimen unduly.7. Testing of Specimens7.1 All testing shall be conducted using the proceduredescribed in Test Method E84.8. 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
26、 specimen preparationprocedure. Safety recommendations are included in TestMethod E84.9. Report9.1 Report the following within the Test Method E84 testreport:9.1.1 A detailed description of the specimen being tested.9.1.2 The specific mounting procedure used.9.1.3 Which specimens were tested with th
27、e facing slit andwhich ones were tested with the facing without a slit.9.1.4 All observations, graphical results, and the values ofthe flame spread index and of the smoke developed index ineach test.10. Keywords10.1 facing; fire; fire test; flame spread index; metal build-ing insulation; smoke devel
28、oped index; slit; tunnelAPPENDIX(Nonmandatory Information)X1. COMMENTARYX1.1 IntroductionIt has been shown that the carefulreplication 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 stan
29、dard testmethod.X1.2 The use of any standard fire test method intrinsicallycarries some limitations, including the source of 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
30、for metalbuildings are often conducted by using Test Method E84.E2988 172X1.3.1 The source of heat and flame in Test Method E84 aretwo 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
31、 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. (102mm).X1.3.3 The test specimen is placed below the lid of the testchamber at a specified location.ASTM International takes no position respecting the validity of any pate
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34、nts will receive careful consideration at a meeting of theresponsible technical committee, which 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
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