GB/T 9865.1-1996Rubber, vulcanized or thermoplastic--Preparation of samples and test pieces--Part 1: Physical tests (English PDF)

Foreword

This Standard is modified from GB 9865-88 according to Part 1 Physical tests of the

international standard ISO 4661-1.1993 Rubber, vulcanized or thermoplastic -

Preparation of samples and test pieces. It is equivalent to it in terms of technical content

and writing rules. According to the provisions of GB/T 1.1-1993, a foreword is added

to this Standard, while the ISO foreword and introduction are retained.

ISO 4661 is divided into two parts under the general title, and Part 1.Physical tests is

adopted for this reversion.

This second edition cancels and replaces the first edition (GB 9865-88), of which it

constitutes a minor editorial revision.

This Standard replaces GB 9865-88 from the date of implementation.

This Standard was proposed by the Ministry of Chemical Industry of the People's

Republic of China.

This Standard shall be under the jurisdiction of Beijing Rubber Industry Research and

Design Institute of the Ministry of Chemical Industry of the People's Republic of China.

The drafting organization of this Standard. Beijing Rubber Industry Research and

Design Institute of the Ministry of Chemical Industry.

The drafters of this Standard. Shen Hui, Mei Fengguo, Zhang Juxiu.

Date of first issue of this Standard. July 1988.

This Standard is entrusted to the Beijing Rubber Industry Research and Design Institute

of the Ministry of Chemical Industry for interpretation.

ISO Foreword

ISO (the International Organization for Standardization) is a worldwide federation of

national standards bodies (ISO member bodies). The work of preparing International

Standards is normally 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 work. 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 requires approval

by at least 75 % of the member bodies casting a vote.

International Standard ISO 4661-1 was prepared by Technical Committee ISO/TC 45,

Rubber and rubber products, Sub-Committee SC 2, Physical and degradation tests.

This second edition cancels and replaces the first edition (ISO 4661-1.1986), of which

it constitutes a minor editorial revision.

ISO 4661 consists of the following parts, under the general title Rubber, vulcanized or

thermoplastic - Preparation of samples and test pieces.

Part 1.Physical tests

Part 2.Chemical tests

1 Scope

Part 1 of this Standard specifies methods of preparing test pieces from vulcanized and

thermoplastic rubber for use in physical tests on rubber specified in other standards.

2 Normative references

The following standards contain provisions which, through reference in this text,

constitute provisions of this Standard. At the time of publication, the editions indicated

were valid. All Standards are subject to revision, and parties to agreements based on

this Standard are encouraged to investigate the possibility of applying the most recent

editions of the standards indicated below.

3 Test piece thickness

The test piece thickness shall be as specified in the relevant test method. However, it is

recommended that the following test piece thicknesses be used for specially moulded

test sheets for all tests unless other thicknesses are technically necessary.

4 Thickness adjustment

Material requiring testing, particularly products, may not be available in the required

thicknesses specified in clause 3, so that procedures are required to adjust the thickness

to within the prescribed limits. In most cases, the thickness adjustments shall be made

on the material before the cutting of the test pieces.

5 Conditioning of test pieces

After carrying out any of the procedures recommended in Clause 4, test pieces shall be

conditioned for at least 16 h at a standard temperature as specified in GB 2941.

6 Test piece cutters

These shall be constructed from high-quality tool steel and may either be constructed

from solid metal or be of split construction. Cutters may be designed to punch out single

Inside surface of cutter

The cutting of a test piece is facilitated by the use of a lubricant either on the cutting

knife or on the surface of the rubber.

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