1、Designation: D4819 96 (Reapproved 2005)D4819 13Standard Specification forFlexible Cellular Materials Made From Polyolefin Plastics1This standard is issued under the fixed designation D4819; the number immediately following the designation indicates the year oforiginal adoption or, in the case of rev
2、ision, 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. Scope Scope*1.1 This specification applies to flexible closed-cell materials made from polyolefin plastics a
3、nd blends of polyolefin plasticsas defined in Section 3.1.2 Extruded or molded shapes too small to permit the cutting of standard test specimens are difficult to classify or test bystandard test methods and will usually require special testing procedures or the use of standard test sheets.1.3 In cas
4、e of conflict between the provisions of this specification and those of detailed specifications for a particular product,the latter shall take precedence. These detailed specifications for the flexible closed-cell polyolefin plastic foams shouldshall statethe particular test or tests desired.1.4 In
5、cases involving referee decisions, SI units shall be used.1.5 This specification does not contain test procedures or values for all the suffix letters listed in Table 1 and Table 2. Wherethe procedure is not described in this specification or special limits are desired, or both, the test procedures
6、and values must bearranged between the purchaser and the supplier.1.6 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.NOTE 1There is no similar or equivalent ISO known ISO equivalent to this standard.2. Referenced Documents2.
7、1 ASTM Standards:2C518 Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter ApparatusD412 Test Methods for Vulcanized Rubber and Thermoplastic ElastomersTensionD624 Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic ElastomersD15
8、96 Test Method for Dynamic Shock Cushioning Characteristics of Packaging MaterialD2863 Test Method for Measuring the Minimum Oxygen Concentration to Support Candle-Like Combustion of Plastics(Oxygen Index)D3575 Test Methods for Flexible Cellular Materials Made From Olefin PolymersE96/E96M Test Metho
9、ds for Water Vapor Transmission of MaterialsF355 Test Method for Impact Attenuation of Playing Surface Systems and Materials2.2 Motor Vehicle Safety Standard:MVSS-302 Flammability of Vehicle Interior MaterialsPassenger Cars, Multipurpose Passenger Vehicles, Trucks and Buses32.3 UL Standard:UL1191 St
10、andard for Components for Personal Flotation Devices43. Terminology3.1 Definitions:3.1.1 blendmixture of polyolefin plastic(s) with other polymer(s) in which at least 51 mass % is the polyolefin plastic(s).1 This specification is under the jurisdiction of ASTM Committee D20 on Plastics and is the di
11、rect responsibility of Subcommittee D20.22 on Cellular PlasticsMaterials- Plastics and Elastomers.Current edition approved March 1, 2005Sept. 1, 2013. Published March 2005September 2013. Originally approved in 1988. Last previous edition approved in 19962005as D4819 - 96.D4819 - 96(2005). DOI: 10.15
12、20/D4819-96R05.10.1520/D4819-13.2 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 Summary page on the ASTM website.3 Available from Department o
13、f Transportation, Washington, DC.4 Available from Underwriters Laboratories (UL), Corporate Progress, 333 Pfingsten Rd., Northbrook, IL 60062.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 previou
14、s 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.*A Summary of Change
15、s section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.1.2 polyolefin plasticsmaterial based on polymers made by the polymerization of olefins or copolymerization of olefins withother polymers,
16、the polyolefin being at least 51 mass %.TABLE 1 Suffix Letter DesignationsA Heat resistanceB Compression set under constant deflectionC Ozone or weather resistanceD Compression deflectionE Oil resistanceF Low temperatureG Tear resistanceH Flex resistanceI Not assignedJ Abrasion resistanceK Adhesion
17、capabilityL Water absorptionM Flammability resistanceN Impact resistanceO Electrical propertiesP Staining resistanceQ Not assignedR1 ResilienceR2 Shock absorptionS Thermal stabilityT1 Tensile strengthT2 Ultimate elongationU Not assignedV Thermal conductivityW DensityX Not assignedY Not assignedZ Spe
18、cial requirementsAA BuoyancyBB Compressive creepCC Dynamic cushioningDD Open cellEE Not assignedFF Water vapor transmissionTABLE 1 Suffix Letter DesignationsA Heat resistanceB Compression set under constant deflectionC Ozone or weather resistanceD Compression deflectionE Oil resistanceF Low temperat
19、ureG Tear resistanceH Flex resistanceI Not assignedJ Abrasion resistanceK Adhesion capabilityL Water absorptionM Flammability resistanceN Impact resistanceO Electrical propertiesP Staining resistanceQ Not assignedR1 ResilienceR2 Shock absorptionS Thermal stabilityT1 Tensile strengthT2 Ultimate elong
20、ationU Not assignedV Thermal conductivityW DensityX Not assignedY Not assignedZ Special requirementsAA BuoyancyBB Compressive creepCC Dynamic cushioningDD Open cellEE Not assignedFF Water vapor transmissionD4819 132TABLE 2 Property Limits for Flexible Cellular Polyolefin MaterialsSuffixLetter Proper
21、ty Test Method UnitsMaximumorMinimumSuffix Numbers and Limiting Values1 2 3 4 5 6 7 8 9B Compression set D3575 % max . 5 10 15 20 25 30 35 .D Compression deflection D3575 kPa (psi) 15 30 40 70 105 170 275 . .min 2.0 4.0 6.0 10 15 25 40G Tear strength D3575 or N/M (lb/in.) 7.0 14 20 27 40 55 68 . .D6
22、24A min 5.0 10 15 20 30 40 50L Water absorption D3575 kg/m2 . 0.20 0.30 0.40 0.50 1.00 . . .(lb/ft2) max 0.04 0.06 0.08 0.10 0.20M1 Flammability-ease of D3575 or % O2 min . 15 20 25 30 . . . .ignition-LOI D2863AM2 Flammability-burn rate MVSS302 mm/min . . 50 100 150 255 . . .(in./min) max 2.0 4.0 6.
23、0 10.0R2 Shock absorption-Procedure A25 mm (1 in.) thicksamplesF355 GsB max . 25 50 75 100 150 200 . .S Thermal stability-dimensionsCD3575 % change max 1 2 5 10 15 . . . .T1 Tensile strength D3575 or kPa (psi) . 140 275 345 415 550 690 . .D412A min 20 40 50 60 80 100T2 Ultimate elongation D3575 orD4
24、12A% min . 25 50 75 100 150 200 . .V Thermal conductivity, 25mmD3575 W/(mK) . 0.040 0.046 0.052 0.058 0.063 . . .(1 in.) thick at 24C(75F),mean temperature 30C(86F), temperaturedifferentialMethod B orC518A(BTU-in./(1hft2F)max 0.28 0.32 0.36 0.40 0.44W Density D3575 kg/m3 nominal 25 30 50 65 80 95 13
25、0 160 .(lb/ft3% , ) max/min 1.5 2.0 3.0 4.0 5.0 6.0 8.0 10.030/25 30/25 25/25 25/25 25/25 25/25 40/25 45/25AA Buoyancy, 24 h exposure at D3575 or kg/m3 . 830 880 910 945 960 . . .23C (73F), under 50 mm(2.0 in.) water headUL1191A (lb/ft3) min 52 55 57 59 60BB Compressive creep, 7 kPa(1.0psi) load at
26、23C (73F) for1000 hD3575 % max . 2.0 4.0 6.0 10 15 . . .CC1 Dynamic cushioning, 50mmD3575 or GsB max . . 30 40 50 60 80 . .(2.0 in.) thick, 7 kPa (1 psi)loading, 600 mm (23.6 in.)drop, 23C (73F)D1596ACC2 Dynamic cushioning, same D3575 or GsB max . . 30 40 50 60 80 . .conditions as CC, exceptfor14 kP
27、a (2 psi) loadingD1596ACC4 Dynamic cushioning, same D3575 or GsB max . . 30 40 50 60 80 . .conditions as CC1 exceptfor28 kPa (4 psi) loadingD1596AFF Water vapor transmission E96/E96M ng/(Pasm) . . 0.3 0.4 0.6 0.9 1.8 . .(perm-in.) max 0.2 0.3 0.4 0.6 1.2TABLE 2 Property Limits for Flexible Cellular
28、Polyolefin MaterialsSuffixLetter Property Test Method UnitsMaximumorMinimumSuffix Numbers and Limiting Values1 2 3 4 5 6 7 8 9B Compression set D3575 % max . 5 10 15 20 25 30 35 .D Compression deflection D3575 kPa min 15 30 40 70 105 170 275 . .G Tear strength D3575 orD624AkN/m min 0.88 1.75 2.63 3.
29、50 5.25 7.01 8.76 . .L Water absorption D3575 kg/m2 max . 0.20 0.30 0.40 0.50 1.00 . . .M1 Flammability-ease ofignition-LOID3575 orD2863A% O2 min . 15 20 25 30 . . . .M2 Flammability-burn rate MVSS302 mm/min max . . 50 100 150 255 . . .R2 Shock absorption-Procedure A25 mm (1 in.) thick samplesF355 G
30、sB max . 25 50 75 100 150 200 . .S Thermal stability-dimensionsCD3575 % change max 1 2 5 10 15 . . . .T1 Tensile strength D3575 orD412AkPa min . 140 275 345 415 550 690 . .D4819 1333.1.3 resinsolid, semi-solid, or pseudo-solid organic material that has an indefinite and often high molecular weight,
31、exhibitsa tendency to flow when subject to stress, usually has a softening or melting range, and usually fractures conchoidally.4. Classification (Types, Suffix Letters, and Suffix Numbers)4.1 TypesThis specification covers two types of flexible, closed-cell polyolefin foams designated as follows:4.
32、1.1 Type IClosed cell foams made with polyolefin plastics and either chemically or radiation crosslinked.4.1.2 Type IIClosed cell foams made with polyolefin plastics that are non-crosslinked.4.2 Suffx LettersSuffix letters shall be added to the type designation (4.1) singly or in combination to indi
33、cate the necessaryrequirements.4.2.1 The significance of the approved suffix letters is given in Table 1.4.2.2 Frequently used suffix letters for polyolefin foams are given in Table 2.Where more than one test method exists for a givenproperty, the suffix letters shall be followed immediately by a su
34、bscript number to designate the specific procedure.4.3 Suffx NumbersEach suffix letter shall be followed by a suffix number that indicates the property limit. Table 2 lists thesesuffix numbers and limiting values.NOTE 2Examples of the classification system are as follows:Specification D4819 Type IB4
35、D4M1 3T1 5T2 7W6Z1 is a crosslinked foam with a maximum compression set of 15 %, a minimum compressiondeflection of 70 kPa (10 psi), an oxygen index of 20 % minimum, minimum tensile strength of 415 kPa (60 psi), minimum ultimate elongation of 200 %,a nominal density of 80 kg/m3 (5.0 lb/ft3), and a s
36、pecial requirement to be negotiated by the vendor and user.Specification D4819 Type IID4T1 3T2 4 R2 5BB4Z1 Z2 is a non-crosslinked foam with a compression deflection of 70 kPa (10 psi) minimum, aminimum tensile strength of 275 kPa (40 psi), minimum ultimate elongation of 75 %, shock absorption of 10
37、0 Gs maximum, compressive creep of 6 %maximum, and two special requirements.5. Ordering Information5.1 When ordering, the product shall be described by showing the type and suffix letters and number designations as describedin Section 4.5.2 Minimum recommended properties for either type of foam shal
38、l include requirements for Compression Deflection (SuffixD), Tensile Strength (Suffix T1), and Ultimate Elongation (Suffix T2).SuffixLetter Property Test Method UnitsMaximumorMinimumSuffix Numbers and Limiting Values1 2 3 4 5 6 7 8 9T2 Ultimate elongation D3575 orD412A% min . 25 50 75 100 150 200 .
39、.V Thermal conductivity, 25mmD3575 W/(mK) max . 0.040 0.046 0.052 0.058 0.063 . . .(1 in.) thick at 24C (75F),mean temperature 30C(86F), temperaturedifferentialMethod B orC518A(BTU-in./(1hft2F)W Density D3575 kg/m3 nominal 25 30 50 65 80 95 130 160 .AA Buoyancy, 24 h exposure at D3575 or kg/m3 min .
40、 830 880 910 945 960 . . .23C (73F), under 50 mm(2.0 in.) water headUL1191ABB Compressive creep, 7 kPa(1.0psi) load at 23C (73F) for1000 hD3575 % max . 2.0 4.0 6.0 10 15 . . .CC1 Dynamic cushioning, 50mmD3575 or GsB max . . 30 40 50 60 80 . .(2.0 in.) thick, 7 kPa (1 psi)loading, 600 mm (23.6 in.)dr
41、op, 23C (73F)D1596ACC2 Dynamic cushioning, same D3575 or GsB max . . 30 40 50 60 80 . .conditions as CC, exceptfor14 kPa (2 psi) loadingD1596ACC4 Dynamic cushioning, same D3575 or GsB max . . 30 40 50 60 80 . .conditions as CC1 exceptfor28 kPa (4 psi) loadingD1596AFF Water vapor transmission E96/E96
42、M ng/(Pasm) . . 0.3 0.4 0.6 0.9 1.8 . .(perm-in.) max 0.2 0.3 0.4 0.6 1.2A Methods shown are equivalent.B G = The dimensionless ratio of missile acceleration during impact to the acceleration of gravity (see Test Method F355).C Plus ( + ) sign indicates growth, minus () sign indicates shrinkage.D481
43、9 1345.3 The properties selected and values set shall be selected to ensure the required performance of the end product.5.4 Special requirements shall be listed. Test procedures and limits shall be established by negotiation between the purchaserand the supplier. Each special requirement shall be li
44、sted as Z suffix letters followed by numerical subscripts.6. Materials and Manufacture6.1 Cellular polyolefin foams furnished under this specification shall be manufactured from any resin or blend of resins that aremembers of the polyolefin family together with added compounding materials of such a
45、nature and quality that the finished productcomplies with this specification. In permitting choice in use of those materials by the producer, it is not intended to imply that thedifferent resins are equivalent with respect to all physical properties. Special characteristics other than those prescrib
46、ed in thisspecification that may beare potentially desired for specific applications shall be listed in the product specifications, as they mayhave the potential to influence the choice of the type of resin or other materials used.6.2 All materials and workmanship shall be in accordance with good co
47、mmercial practice and the resulting cellular polyolefinshall be free from defects affecting serviceability.7. Color7.1 Unless otherwise specified, the color of cellular polyolefin foams shall be natural. The foam shall contain no colorants.8. Physical Properties8.1 The polyolefin foams shall conform
48、 to the requirements given in the classification (see Section 4) and described in Table2 together with any special requirements.9. Test Methods9.1 Unless specifically stated otherwise, perform all tests in accordance with the methods specified in Test Methods D3575.9.2 Test methods and values for sp
49、ecial requirements not listed in Table 2 shall be arranged between the purchaser and thesupplier.10. Tolerances on Dimensions10.1 Tolerances on dimensions shall be as specified in Table 3, unless otherwise specified.11. Inspection11.1 All tests and inspection shall be made at the place of manufacture prior to shipment, unless otherwise specified. Themanufacturer shall afford the inspector all reasonable facilities for tests and inspection.TABLE 3 Thickness TolerancesNOTE 1 Tighter tolerances, if desired, should be a
