1、Designation: E2988 15aE2988 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 follow
2、ing the designation 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 desc
3、ribes a procedure for specimen preparation and mounting when testing Flexible Fibrous Glass Insulationfor Metal Buildings to assess flame spread and smoke development as surface burning characteristics using Test Method E84.1.2 This practice applies to products described in Specification C991.1.3 Th
4、is practice provides instructions for the testing of both un-faced insulation (Specification C991 Type I) and face insulation(Specification C991 Type II).1.4 This practice does not provide pass/fail criteria that can be used as a regulatory tool.1.5 Use the values stated in inch-pound units as the s
5、tandard in referee decisions. The values in the SI system of units are givenin parentheses, for information only; see IEEE/ASTM SI-10 for further details.1.6 This fire standard cannot be used to provide quantitative measures.1.7 Fire testing of products and materials is inherently hazardous and adeq
6、uate safeguards for personnel and property shall beemployed in conducting these tests. Fire testing involves hazardous materials, operations and equipment.1.8 This practice gives instructions on specimen preparation and mounting but the fire-test-response method shall be conductedin accordance with
7、Test Method E84. See also Section 8 for information on operator safety.1.9 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 healthenvironment
8、al practices and determine theapplicability of regulatory limitations prior to use.1.10 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guide
9、s and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C168 Terminology Relating to Thermal InsulationC991 Specification for Flexible Fibrous Glass Insulation for Metal BuildingsE84 Test Method for Surface Bu
10、rning Characteristics of Building MaterialsE176 Terminology of Fire StandardsIEEE/ASTM SI-10 American National Standard for Use of the International System of Units (SI): The Modern Metric System3. Terminology3.1 DefinitionsFor definitions of terms used in this practice and associated with insulatio
11、n issues, refer to terminologycontained in Terminology C168 or Specification C991. For definitions of terms used in this practice and associated with fire issues,refer to Terminology E176.1 This practice is under the jurisdiction of ASTM Committee E05 on Fire Standards and is the direct responsibili
12、ty of Subcommittee E05.22 on Surface Burning.Current edition approved July 1, 2015Nov. 1, 2017. Published August 2015December 2017. Originally approved in 2015. Last previous edition approved in 2015 asE2988-15.E2988-15a. DOI: 10.1520/E2988-15A.10.1520/E2988-172 For referencedASTM standards, visit t
13、heASTM 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 provide the user of an ASTM standard a
14、n 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 the standard as published by ASTM is t
15、o be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.2 Definitions of Terms Specific to This Standard:3.2.1 metal rods, nas related to fire testing, steel rods, 14 in. (6.3 mm) diameter and between 2
16、3 and 24 in. (0.58 and 0.61m) long.4. Summary of Practice4.1 This practice describes a procedure for specimen preparation and mounting when testing flexible fibrous glass insulation formetal buildings to assess flame spread and smoke development as surface burning characteristics using Test Method E
17、84.4.2 Flexible fibrous glass insulation for metal buildings is a fibrous 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 a laminatingprocess that applies an adhesive bonded fa
18、cing to one surface.4.3 Flexible fibrous glass insulation for metal buildings shall be tested in accordance with the specimen preparation andmounting procedures described in this practice, using Test Method E84.5. Significance and Use5.1 Flexible fibrous glass insulation for metal buildings is evalu
19、ated 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 metal buildinginsulation materials.5.2 The material to be tested shall be representative of the glass fiber blanket, facing and bo
20、nding adhesive used in actual fieldinstallations.5.3 The limitations for this procedure are those associated with Test Method E84.6. Specimen Preparation and Mounting6.1 Test specimens shall consist of 24.5 6 0.5 ft (7.47 6 0.152 m) continuous, unbroken lengths or broken, butted end-to-endlengths of
21、 the blanket insulation. The width shall be between 20 and 24 in. (0.50 and 0.60 m) with a thickness between 2.0 and4.0 in. (50 and 100 mm).6.2 The specimens shall be supported by nominally straight metal rods inserted through the material and positioned such thatthe bottom of the rod is approximate
22、ly 14 in. (6.3 mm) from the surface to be exposed to the flame. The steel rods shall be 14 in.(6.3 mm) diameter, span the width of the tunnel and be spaced at approximately 2 ft (0.6 m) intervals down the length of the tunnel,including a rod at each end of the specimen.6.2.1 When testing butted end-
23、to-end, each test specimen shall have a rod inserted 3 in. (76 mm) from each butted end, andevenly spaced rods shall be added to the section to maintain the test specimen in a relatively flat position.6.3 For Type I materials, the un-faced surface shall be the surface exposed to the flame.6.4 For Ty
24、pe II materials, the faced surface shall be the surface exposed to the flame.6.4.1 For Type II material, a minimum of two specimens shall be tested. One specimen shall be tested with a longitudinal slitdown the length of the sample oriented between the burners. The slit is to be of such depth as to
25、expose the bonding adhesive andglass fiber insulation. The other specimen shall be tested with the facing without a slit.6.5 When lowering the tunnel lid, care shall be taken to achieve contact with the specimen but to not compress the specimenunduly.7. Testing of Specimens7.1 All testing shall be c
26、onducted using the procedure described in Test Method E84.8. Operator Safety8.1 The primary concerns for operator safety are associated with the fire-test-response procedure, which is described in TestMethod E84, and not with the specimen preparation procedure. Safety recommendations are included in
27、 Test Method E84.9. Report9.1 Report the following information regarding the specific mounting procedure used:9.2 Which specimens were tested with the facing slit and which ones were tested with the facing without a slit.9.1 Report all the information required in the reporting section of the followi
28、ng within the Test Method E84, including allobservations, graphical results and the values of the flame spread index and of the smoke developed index in each test. test report:9.1.1 A detailed description of the specimen being tested.9.1.2 The specific mounting procedure used.9.1.3 Which specimens w
29、ere tested with the facing slit and which ones were tested with the facing without a slit.E2988 1729.1.4 All observations, graphical results, and the values of the flame spread index and of the smoke developed index in eachtest.10. Keywords10.1 facing; fire; fire test; flame spread index; metal buil
30、ding insulation; smoke developed index; slit; tunnelAPPENDIX(Nonmandatory Information)X1. COMMENTARYX1.1 IntroductionIt has been shown that the careful replication of realistic fire scenarios is the most appropriate means of firetesting of products and systems. However, this is not always achievable
31、 within the confines of a standard test method.X1.2 The use of any standard fire test method intrinsically carries some limitations, including the source of heat or flame, thespecimen size and orientation, the specimen location and the fire-test-response characteristics measured.X1.3 Fire tests on f
32、lexible fibrous glass insulation for metal buildings are often conducted by using Test Method E84.X1.3.1 The source of heat and flame in Test Method E84 are two gas burners supplying approximately 300 000 BTU/h (87.9 kW)onto the test specimen from underneath for a period of 10 min.X1.3.2 The approxi
33、mate specimen sizes in Test Method E84 are 24 ft (7.3 m) long by 20 to 24 in. (508 to 610 mm) wide. therecommended specimen thickness height is up to 4 in. (102 mm).X1.3.3 The test specimen is placed below the lid of the test chamber at a specified location.ASTM International takes no position respe
34、cting the validity of any patent 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 st
35、andard 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 additional standardsand should be addressed to ASTM Internati
36、onal Headquarters. Your comments 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
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