1、BRITISH STANDARDBS ISO 6916-1:1995Incorporating amendment no. 1Implementation of ISO 6916-1:1995Flexible cellular polymeric materials g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g
2、50g51g60g53g44g42g43g55g3g47g36g58Sponge and expanded cellular rubber products Specification Part 1: SheetingICS 83.100I/71, Flexible cellular materials.anizations represented on this committee can be obtained on secretary.BS ISO 6916-1:1995National forewordThis BritiinThe start and finish of texthe
3、 text by of in the textThe PRA list of orgrequest to its This British Standard, having been prepared under the direction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Boardand comes into effect on 15 July 1996 BSI 2007The following BSI references
4、 relate to the work on this standard: Committee reference PRI/71 Draft for comment 88/41625 DCISBN 978 0 580 59160 0This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot con
5、fer immunity from legal obligations.Amendments issued since publicationAmd. No. Date Comments17213 31 July 2007 See national forewordsh Standard is the UK implementation of ISO 6916-1:1995, corporating amendment A1:2007.t introduced or altered by amendment is indicated in tags !“. Tags indicating ch
6、anges to ISO text carry the number the amendment. For example, text altered by ISO amendment 1 is indicated by !“.UK participation in its preparation was entrusted to Technical Committee BS ISO 6916-1:1995BS ISO 6916-1:1995ii4 Material and workmanship 25 Physical properties 26 Methods of test 27 Dim
7、ensional tolerances 28 Inspection and rejection 79 Packaging and marking 710 Sampling 711 Test pieces and sheets 712 Measurement of test-piece dimensions 8Annex A (normative) 10Annex B (normative) 10Annex C (normative) 11Annex D (normative) 11Annex E (normative) 11Annex F (normative) 12Annex G (norm
8、ative) 12Figure 1 Locations from which standard test pieces are to be cut when testing standard test slabs or commercial flat sheets 9Figure 2 Four-cavity frame for standard test slabs of cellular rubbers 9Table 1 Physical requirements for cellular rubbers, type 1, open-cell (sponge) rubber 3Table 2
9、 Physical requirements for cellular rubbers, type 2, closed-cell (expanded) rubber 4Table 3 Physical requirements for cellular rubbers, with added suffix letter 5Table 4 Test methods 6Table 5 Tolerances on dimensions of cellular-rubber sheet for general applications 7ContentsPage1Scope 12 Normative
10、references 13 Classification (types, classes grades and suffixes 1 BSI 2007BS ISO 6916-1:1995 BSI 2007ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally
11、 carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the w
12、ork. ISO collaborates closely with the international Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard require
13、s approval by at least 75 % of the member bodies casting a vote.International Standard ISO 6916-1 was prepared by Technical committee ISO/TC 45, Rubber and rubber products.ISO 6916 consists of the following parts, under the general title Flexible cellular polymeric materials Sponge and expanded cell
14、ular rubber products specification: Part 1: Sheeting; Part 2: Mouldings and extrusions.Annexes A to G form an integral part of this part of ISO 6916.iiiblankBS ISO 6916-1:19951 Scope1.1 This part of ISO 6916 classifies flexible cellular rubber products known as sponge and expanded rubber. The base m
15、aterial used in their manufacture may be natural rubber, reclaimed rubber or synthetic rubber, either alone or in combination. The only products included in this part of ISO 6916 are in the form of sheeting.1.2 This part of ISO 6916 does not apply to latex foam rubbers, shoe soling or other similar
16、micro-cellular products, ebonite cellular rubbers, virgin or reconstituted flexible, semi-rigid urethane foams, virgin or reconstituted poly(vinyl chloride), or poly(vinyl chloride) blended with other polymers.1.3 Two types are specified, as follows:Type 1: open-cell rubber (normally known as sponge
17、 rubber).Type 2: closed-cell rubber (normally known as expanded rubber).These types are further classified by division into classes, based on their relative resistance to the action of petroleum-based oils and/or temperature resistance, and grades, based on a specific range of compression-deflection
18、 requirements. The product can be further classified by the addition of a suffix letter to the type, class and grade designation to indicate additional requirements. This letter is then defined by a suffix number denoting a test method.1.4 Attention is drawn to the fact that most extruded or moulded
19、 shapes are of sizes too small for cutting standard test pieces. These are difficult to classify and test by the methods given in this part of ISO 6916 and cannot, therefore, be tested using these procedures.In the case of conflict between the provisions of this part of ISO 6916 and those of the det
20、ailed specification or test method for a particular product, the latter shall take precedence. Reference to the methods shall specifically state the desired test or tests.2 Normative referencesThe following standards contain provisions which, through reference in this text, constitute provisions of
21、this part of ISO 6916. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO 6916 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. M
22、embers of IEC and ISO maintain registers of ISO 815:1991, Rubber, vulcanized or thermoplastic Determination of compression set at ambient, elevated or low temperatures.!ISO 1431-1:2004, Rubber, vulcanized or thermoplastic Resistance to ozone cracking Part 1: Static and dynamic strain testing.ISO 181
23、7:2005, Rubber, vulcanized Determination of the effect of liquids.“ISO 1923:1981, Cellular plastics and rubbers Determination of linear dimensions.!ISO 3865:2005, Rubber, vulcanized or thermoplastic Methods of test for staining in contact with organic material.ISO 5893:2002, Rubber and plastics test
24、 equipment Tensile, flexural and compression types (constant rate of traverse) Specification.ISO 7500-1:2004, Metallic materials Verification of static uniaxial testing machines Part 1: Tension/compression testing machines Verification and calibration of the force-measuring system.ISO 23529:2004, Ru
25、bber General procedures for preparing and conditioning test pieces for physical test methods.“ NOTE 1 In some of the test methods referenced above, the apparatus, but not procedure, is used.3 Classification (types, classes, grades and suffixes)3.1 TypesThis part of ISO 6916 covers two types of cellu
26、lar rubber, as follows:Type 1: open-cell rubber.Type 2: closed-cell rubber.3.2 ClassesEach type is divided into four classes designated by the letters A, B, C and D (for example type 1B).Class A: Cellular rubbers made from natural rubber, reclaimed rubber or synthetic rubber alone or in combination,
27、 where specific resistance to the action of petroleum-based oils is not required.Class B: Cellular rubbers made from synthetic rubber having specific requirements for oil resistance with low swell.Class C: Cellular rubbers made from synthetic rubber having specific requirements for oil resistance wi
28、th medium swell.Class D: Cellular rubbers made from synthetic BSI 12007 1currently valid International Standards.!ISO 188:1998, Rubber, vulcanized or thermoplastic Accelerated ageing and heat-resistance tests.Text deleted“rubber having specific requirements for both low and high temperature resistan
29、ce ( 75 C to 250 C) but where specific resistance to the action of petroleum-based oils is not required.BS ISO 6916-1:19953.3 GradesEach class is divided into six different grades based on a specific range of firmness as expressed by compression deflection. Grades are designated by a digit (0 to 6),
30、 with the softer grades being identified with the lower numbers and the harder grades with the higher numbers.Grade 0: for type 1 cellular rubbers only, a compression-deflection range of 2,5 kPa to 15 kPa.Grade 1: for type 1 and 2 cellular rubbers, a compression-deflection range of 15,1 kPa to 35 kP
31、a.Grade 2: for type 1 and 2 cellular rubbers, a compression-deflection range of 35,1 kPa to 65 kPa.Grade 3: for type 1 and 2 cellular rubbers, a compression-deflection range of 65,1 kpa to 95 kpa.Grade 4: for type 1 and 2 cellular rubbers, a compression-deflection range of 95,1 kPa to 125 kPa.Grade
32、5: for type 1 and 2 cellular rubbers, a compression-deflection range of 125,1 kPa to 200 kpa.Grade 6: for type 1 and 2 cellular rubbers, a compression-deflection range of 200,1 kPa to 300 kpa.3.4 Suffix lettersSuffix letters may be added singly or in combination after any grade number to indicate ad
33、ditional requirements beyond those specified in Table 1 and Table 2 as basic requirements. The significance of the approved suffix letters is shown in Table 3.3.5 Suffix numbersEach suffix letter should preferably be followed by one suffix number. The suffix number always indicates the test method.
34、The time of test is part of the method and is taken from the listing in Table 4.NOTE 2 Examples of codings:a) 1A2C1F1: This is an open-cell, non-oil-resistant material, firmness 35,1 kPa to 65 kPa, compression set at basic level, ozone-resistant to 25 pphm, and low-temperature-resistant to 40 C.b) 1
35、C3B1C1F2: This is an open-cell material, oil-resistant at the medium swell level, firmness 65,1 kPa to 95 kpa, compression set 25 % max., ozone-resistant to 25 pphm, and low-temperature-resistant to 55 C4 Material and workmanship4.1 Cellular rubbers produced to this part of ISO 6916 shall be manufac
36、tured from natural rubber, synthetic rubber or reclaimed rubber, together with added compounding ingredients of such nature and quality that the product complies with the specification requirements.4.2 In permitting choice in the use of materials, it is not intended to imply that the resulting diffe
37、rent rubber materials are equivalent in respect of all physical properties. Any special characteristics other than those specified in this part of ISO 6916 which may be desired for a specific application shall be detailed in the particular product specification. All materials and workmanship shall b
38、e in accordance with good commercial practice, and the resulting cellular rubbers shall be free from defects affecting serviceability.These products shall also conform with national and supranational health and safety regulations.5 Physical propertiesThe various types, classes and grades of cellular
39、 rubber shall conform to the physical property requirements given in Table 1 and Table 2, together with any additional requirements indicated by any suffix letter as described in Table 3 and any number given in the designation as described in clause 3.6 Methods of test6.1 Unless specifically stated
40、otherwise, all tests shall be carried out in accordance with the methods specified in the annexes to this part of ISO 6916.6.2 Test pieces shall not be tested for at least 72 h after manufacture. Prior to test, the test pieces shall be stored for at least 16 h at either 23 C 2 C and (50 5) % relativ
41、e humidity or 27 C 2 C and (65 5) % relative humidity. This period may form the latter part of the time following manufacture.6.3 When 23 C 2 C or the phrase “standard temperature” is stated in this document, it shall be taken to mean that the standard temperatures of 23 C 2 C or 27 C 2 C may be use
42、d when appropriate !(see ISO 23529).“7 Dimensional tolerancesThe tolerances allowable on the dimensions of cellular rubber sheet shall be as specified in Table 5.2 BSI 2007BS ISO 6916-1:1995Table 1 Physical requirements for cellular rubbers, type 1, open-cell (sponge) rubberBasic requirementsGrade N
43、o.Compression deflection at 25 %Compression deflection after conditioning Change from original valueCompression set under constant deflection of 50 %Oil resistance 22 h at70 C 1 CDeflection at 23 C 2 CChange in volume is ISO 1817 petroleum-based oil No.3168 h at70 C 1 C22 h at150 C 2 C5 h at 55 C 2
44、C22 h at70 C 1 C22 h at100 C 1 Ckpa (Limits) % (Limits) % (Limits) % (Max.) % (Max.) % (Max.) % (Limits)Class A, non-oil-resistant1A0 2,5 to 15 20a 25 1A1 15,1 to 35 20 25 1A2 35,1 to 65 20 25 1A3 65,1 to 95 20 25 1A4 95,1 to 125 20 25 1A5 125,1 to 200 20 25 1A6 200,1 to 300 20 25 Class B, oil-resis
45、tant, low-swell1B0 2,5 to 15 20a 40 25 to + 101B1 15,1 to 35 20 40 25 to + 101B2 35,1 to 65 20 40 25 to + 101B3 65,1 to 95 20 40 25 to + 101B4 95,1 to 125 20 40 25 to + 101B5 125,1 to 200 20 40 25 to + 101B6 200,1 to 300 20 40 25 to + 10Class C, oil-resistant, medium-swell1C0 2,5 to 15 20a 50 + 10 t
46、o + 601C1 15,1 to 35 20 50 + 10 to + 601C2 35,1 to 65 20 50 + 10 to + 601C3 65,1 to 95 20 50 + 10 to + 601C4 95,1 to 125 20 50 + 10 to + 601C5 125,1 to 200 20 50 + 10 to + 601C6 200,1 to 300 20 50 + 10 to + 60Class D, high-temperature-resistant1D0 2,5 to 15 10 5 50 1D1 15,1 to 35 10 5 30 1D2 35,1 to
47、 65 10 5 30 1D3 65,1 to 95 10 5 30 1D4 95,1 to 125 10 5 30 1D5 125,1 to 200 10 5 30 BSI 12007 3a If, after ageing, this grade still falls within the compression-deflection requirement of 2,5 kPa to 15 kPa, it shall be considered acceptable even though the change from the original value is greater th
48、at 20 %.BS ISO 6916-1:1995Table 2 Physical requirements for cellular rubbers, type 2, closed-cell (expanded) rubberBasic requirementsGrade No.Compression deflection at 25 %Compression deflection after conditioning Change from original valueCompression set under constant deflection of 50 %Water absorption 3 min at 23 C 2 CFluid resistance 168 h at 23 C 2 CDeflection at 23 C 2 C22 h at70 C 1 C22 h at150 C 2 C5 h at 55 C 2 C22 h at23 C 2 C22 h at100 C 1 CMass of water uptakeChange in mass in ISO 1817 liqu
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