1、Designation: E1730 09E1730 15Standard Specification forRigid Foam for Use in Structural Sandwich Panel Cores1This standard is issued under the fixed designation E1730; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of las
2、t revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope1.1 This specification covers rigid, cl
3、osed cell, polyurethane and polyisocyanurate thermal insulation for sandwich panels usedin shelter construction for exposure to ambient temperatures of 25 to 160F (32 to 71C). Painted surfaces of shelters in actualfield use reach temperatures of 200F (93C). The materials in this specification must b
4、e capable of withstanding processing,(laminating) temperatures of 110C (230F).230F (110C).1.2 The values stated in either inch-pound or SI units are to be regarded separately as the standard. The values given inparentheses are for information only.mathematical conversions to SI units that are provid
5、ed for information only and are notconsidered standard.1.3 The following precautionary caveat pertains only to the test method portion, Section 12, of this specification:This standarddoes not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of
6、the user of thisstandard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C165 Test Method for Measuring Compressive Properties of Thermal InsulationsC168 Terminology Relating to The
7、rmal InsulationC177 Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of theGuarded-Hot-Plate ApparatusC273C273/C273M Test Method for Shear Properties of Sandwich Core MaterialsC366/C366M Test Methods for Measurement of Thickness of Sandwich CoresC390 P
8、ractice for Sampling and Acceptance of Thermal Insulation LotsC518 Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter ApparatusC550 Test Method for Measuring Trueness and Squareness of Rigid Block and Board Thermal InsulationD883 Terminology Relating to Plas
9、ticsD1621 Test Method for Compressive Properties of Rigid Cellular PlasticsD1622D1622/D1622M Test Method for Apparent Density of Rigid Cellular PlasticsD1623 Test Method for Tensile and Tensile Adhesion Properties of Rigid Cellular PlasticsD2126 Test Method for Response of Rigid Cellular Plastics to
10、 Thermal and Humid AgingD2856 Test Method for Open-Cell Content of Rigid Cellular Plastics by the Air Pycnometer (Withdrawn 2006)3E631 Terminology of Building ConstructionsE1749 Terminology Relating to Rigid Wall Relocatable Shelters2.2 Code of Federal Regulations Aeronautics and Space:414 CFR 25.85
11、3 (Federal Air Regulation 25.853) Compartment Interior (Amend. 25-72)1 This specification is under the jurisdiction of ASTM Committee E06 on Performance of Buildings and is under the direct responsibility of Subcommittee E06.53 onMaterials and Processes for Durable Rigidwall Relocatable Structures.C
12、urrent edition approved Nov. 1, 2009May 1, 2015. Published December 2009August 2015. Originally approved in 1995. Last previous edition approved in 20042009as E1730 04.E1730 09. DOI: 10.1520/E1730-09.10.1520/E1730-15.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM
13、 Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 The last approved version of this historical standard is referenced on www.astm.org.4 Available from U.S. Government Printing Office Superinte
14、ndent of Documents, Publishing Office, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401,http:/www.access.gpo.gov.20401-0001, http:/www.gpo.gov.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 t
15、o 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 to be considered the official document.Copyrig
16、ht ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States12.3 Federal Standard:5QQ-A-250/11 Aluminum Alloy 6061-T6 Plate and Sheet2.4 Military Standards:Standard:5MIL STD 105 Sampling Procedures and Tables for Inspection by Attributes2.5 Other Documen
17、ts:6Aircraft Materials Fire Test Handbook DOT/FAA/AR-00/12Federal Aviation Regulation (FAR) 25.8533. Terminology3.1 DefinitionsThe terms used in this specification are defined in Terminologies C168, D883and, D883E631. , and E1749.4. Classification4.1 The unfaced foam thermal insulation boards covere
18、d by this specification are classified as follows:4.1.1 Type 1Nominal density: 32 kg/m2.0 lb/ft3 (2.0 lb/ft(32 kg/m3).4.1.2 Type 2Nominal density: 48 kg/m3.0 lb/ft3 (3.0 lb/ft(48 kg/m3).4.1.3 Type 3Nominal density: 64 kg/m4.0 lb/ft3 (4.0 lb/ft(64 kg/m3).4.1.4 Type 4Nominal density: 192 kg/m12.0 lb/f
19、t3 (12.0 lb/ft(192 kg/m3).5. Ordering Information5.1 Orders for materials purchased under this specification shall include the following:5.1.1 Designation of this specification,5.1.2 Product name and type, or both,5.1.3 Dimensions and tolerances,5.1.4 Impact resistance test specimen preparation,5.1.
20、5 Material marking requirements, and5.1.6 Packaging requirements.6. Foam6.1 The morphology of the insulation shall consist of a multitude of individual cells of uniform size and dimension, essentiallyclosed off from each other, homogeneous throughout, free of voids, accumulations of unexpanded mater
21、ial, foreign inclusions, orseams (see Table 1).7. Dimensions and Tolerances7.1 The dimensions, squareness, and tolerances shall be specified by the purchaser.8. Qualification8.1 When required by the purchaser, materials supplied under this specification must be tested for and meet the properties lis
22、tedin Table 2. Having a qualified product does not obviate the supplier from continued, ongoing product compliance with allrequirements to this specification.8.2 In addition to meeting the requirements of the tests stipulated in Table 2 as manufactured, the compressive, tensile, and shearproperties
23、must also meet these requirements after having been preconditioned for 4 h at 110C (230F),230F (110C), andallowed to equilibrate in accordance with 11.2.8.3 Unless otherwise specified by the purchaser, qualified materials remain qualified as long as there are no changes in productformulation, critic
24、al raw materials, that is, isocyanates and polyols, basic methods of manufacture, or plant location.9. Acceptance9.1 Lot Size for Acceptance TestingFor the purpose of acceptance testing a lot is defined as a single, identifiable, productionrun using raw materials from a single batch.9.2 Acceptance T
25、esting (Physical Properties)A representative sample shall be selected from each foam lot and tested for thefollowing physical properties:5 Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, DLA Document Services, Building 4/D, 700 Robbins Ave., Philadelphia, PA19111-509
26、8, http:/dodssp.daps.dla.mil.19111-5094, http:/quicksearch.dla.mil.6 Available from National Institute of Standards and Technology (NIST), 100 Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http:/www.nist.gov.E1730 152Property Requirement MethodDensity Table 2 12.1Compressive strength Table 2 1
27、2.3Shear strength Table 2 12.5Flame resistance Table 2 12.8Property Requirement MethodDensity Table 2 12.1Compressive strength Table 2 12.3Shear strength Table 2 12.5Flame resistance Table 2 12.89.3 Sampling for Acceptance (Examination):9.3.1 Samples for quality conformance examination shall be sele
28、cted in accordance with Inspection Level II of MIL STD 105.9.3.2 When the conditions for reduced inspection specified in MIL STD 105 have been complied with, a reduced sampling inlieu of full sampling shall be instituted. Sampling for reduced inspection shall be in accordance with Practice C390 (Ins
29、pectionLevel S-2 of MIL STD 105).9.4 Examination:9.4.1 Samples selected in accordance with 9.3 shall be examined for characteristics listed in Table 1.9.4.2 Visual examination shall consist of scanning for surface characteristics.9.4.3 Dimensional measurements shall be made with calipers, rules, and
30、 tape rules as appropriate to the specified tolerances.In cases of dispute or when specifically invoked by the purchaser, the methodology and procedures of Test MethodMethodsC366/C366M or Test Method C550 shall be utilized.9.4.4 TheAcceptable Quality Level (AQL) for major characteristics shall be 1.
31、0 % and for minor characteristics shall be 2.5 %.9.4.5 Seams (see Table 1) are defined as: a plane of undermixed material, or a fold which developed within the rising foam massthat reduces the tensile strength of the foam. When viewed normal to a cut sheet, a seam appears as a line on the foam surfa
32、ce.This condition must be differentiated from simple discoloration (arising from the same causes but not as pronounced) that haveno appreciable effect on foam strength. This condition shall be evaluated by taking a sample, (not to exceed 51 mm (2 in.) thick2in. (51 mm) thick) from the sheet and bend
33、ing it over a 305 mm (12 in.)12 in. (305 mm) cylinder to failure. If the failure planefollows the discontinuity then the discontinuity shall be considered a seam.10. Physical Property Requirements10.1 The rigid, cellular polyurethane or polyisocyanurate foam shall have limiting property values as sh
34、own in Table 2.11. Test Preconditioning11.1 A period of at least 72 h must elapse from the time of foam manufacture until the cutting of any test specimens.TABLE 1 Classification of CharacteristicsCharacteristic Major Minor Method ofInspectionLength, width, and thickness X . 9.4.3Edge squareness X .
35、 9.4.3Holes through board exceeding 40 mm2for each 92900 mm2 (0.0625 in.2for each square foot) of areaX . 9.4.2Crushed foam X . 9.4.2Voids larger than 40 mm (0.0625 in.2) X . 9.4.2Unexpanded material . X 9.4.2Foreign inclusions . X 9.4.2Contaminants . X 9.4.2Seams X . 9.4.5TABLE 1 Classification of
36、CharacteristicsCharacteristic Major Minor Method ofInspectionLength, width, and thickness X . 9.4.3Edge squareness X . 9.4.3Holes through board exceeding 40 mm2for each 0.0625 in.2 (92900 mm2for each square foot) of areaX . 9.4.2Crushed foam X . 9.4.2Voids larger than 0.0625 in.2 (40 mm) X . 9.4.2Un
37、expanded material . X 9.4.2Foreign inclusions . X 9.4.2Contaminants . X 9.4.2Seams X . 9.4.5E1730 15311.2 Unless otherwise specified, by the purchaser, the test specimens shall be conditioned at 247562C (759F (2469F)2C)and at relative humidity of less than 60 % for at least 12 h prior to testing.12.
38、 Test Methods12.1 DensityDetermine the density in accordance with Test Method D1622D1622/D1622M.12.2 Thermal ConductivityDetermine the thermal conductivity in accordance with Test Method C177 or Test Method C518at mean temperatures of 5, 24, and 52C (41, 75, 120F)41, 75, 120F (5, 24, and 52C) after
39、conditioning for 7 6 1 daysat 24 6 2C (75 6 3F) 75 6 3F (24 6 2C) and less than 60 % relative humidity from time of manufacture. The heat flow isto be measured parallel to the rise of the foam. Requirements for thermal conductivity are given in Table 2.12.3 Compressive StrengthDetermine the compress
40、ive strength in accordance with ProcedureAof Test Method D1621, or byTest Method C165. The compressive force is to be applied parallel to the rise direction of the foam.12.4 Tensile StrengthDetermine the tensile strength in accordance with Test Method D1623. The tensile force is to be appliedparalle
41、l to the rise direction of the foam.12.5 Shear StrengthDetermine the shear strength in accordance with Test Method C273C273/C273M. Apply the shear forceperpendicular to the rise direction of the foam. Specimen thickness shall be 13 mm (0.5 in.).0.5 in. (13 mm).12.6 Closed CellDetermine the percent c
42、losed cell in accordance with Procedure A or B of Test Method D2856.12.7 Dimensional StabilityDetermine the dimensional stability in accordance with Test Method D2126, at approximately70158 6 2C (1584F (70 6 4F)2C) and ambient humidity. The test duration shall be 836 h (two weeks).12.8 Flame Resista
43、nceDetermine the flame resistance in accordance with Federal Aviation Regulations (FAR) 25.853 Part-1App. F (a) (1)(1) 60 second vertical ignition. Specimen size shall be: 8 in. minimum length, by 3 in. nominal width. by theminimum thickness used for construction, or if unknown, 0.5 6 0.015 in. The
44、flame shall be applied to the cut, unfinished loweredge of the specimen in accordance with theAircraft Materials Fire Test Handbook, Chapter 1. Report the average extinguishmenttime and burn the distance of three determinations. (WarningThis test should be used to measure and describe the properties
45、of materials, products, or assemblies in response to heat and flame under controlled laboratory conditions and should not be usedto describe or appraise the fire hazard or fire risk of materials, products, or assemblies under actual fire conditions. However, resultsTABLE 2 Physical and Mechanical Pr
46、opertiesRequirement Procedure Type 1 Type 2 Type 3 Type 4 ParagraphDensity, kg/m3 (lbft3), max 41.6 (2.6) 55.7 (3.6) 72 (4.5) 192 (13) 12.1Thermal conductivity, W/mK (Btu-in./hr-2F), max 12.2at approximately 5C (41F) mean 0.036 (0.250) 0.037 (0.257) 0.037 (0.257) not requiredat approximately 24C (79
47、F) mean 0.036 (0.250) 0.037 (0.257) 0.037 (0.257) not requiredat approximately 52C (120F) mean 0.036 (0.250) 0.037 (0.257) 0.037 (0.257) not requiredCompressive strength at 10 % deflection or at yield, kPa (psi), min 172.4 (25) 275.8 (40) 448.2 (65) 2758 (400) 12.3Tensile strength, kPa (psi), min 20
48、6.8 (30) 344.7 (50) 517.1 (75) 1896 (275) 12.4Shear strength, kPa (psi), min 172.4 (25) 241.2 (35) 275.8 (40) 1034 (150) 12.5Closed cell (%), min 95 95 95 95 12.6Dimensional stabilityLinear % 1.5 1.5 1.5 1.5 12.7Volumetric % 2.5 2.5 2.5 2.5Flame resistanceExtinguish time: max, s 15 15 15 15 12.8Burn
49、 distance: mm (in.), max 152 (6) 152 (6) 152 (6) 152 (6)Impact resistance, paragraph 12.9 12.9 12.9 12.9 12.9.1TABLE 2 Physical and Mechanical PropertiesRequirement Procedure Type 1 Type 2 Type 3 Type 4 ParagraphDensity, lb/ft3 (kg/m3), max 2.6 (41.6) 3.6 (55.7) 4.5 (72) 13 (192) 12.1Thermal conductivity, W/mK (Btu-in./hr-2F), max 12.2at approximately 41F (5C) mean 0.250 (0.036) 0.257 (0.037) 0.257 (0.037) not requiredat approximately 79F (24C) mean 0.250 (0.036) 0.257 (0.037) 0.257 (0.03
