GB/T 28607-2012Determination of compatibility between standard elastomeric materials and automotive engine oil (English PDF)

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules.

1 Scope

This standard specifies the evaluation of five standard elastomer materials and engine oil compatibility test method, these five elastomeric material is issued The most typical sealing materials used in contact with engine oil.

This standard provides a formula, the mixing process and curing procedures five standard elastomeric material.

a) nitrile rubber -1 (NBR-1);

b) nitrile rubber -2 (NBR-2);

c) fluorine rubber (of FKM);

d) acrylate rubber (the ACM);

e) silicone rubber (VMQ).

This standard applies under controlled conditions by measuring the hardness change before and after immersion standard elastomer reference sample, tensile strength Rate, elongation at break rate of change, volume change of engine oil to assess the impact of such elastomers.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 528 Determination of vulcanized rubber and thermoplastic rubber tensile stress-strain properties Determination of GB/T 533 density of vulcanized rubber

GB/T 1232.1 unvulcanized rubber shearing disc viscometer - Part 1 Determination. Determination of Mooney viscosity

GB/T 1690-2006 Test method for liquid-resistant vulcanized rubber

GB/T 6031-1998 Determination of vulcanized rubber or thermoplastic rubber hardness (10 ~ 100IRHD)

GB/T 6038-2006 Rubber test feed ingredients, mixing and vulcanization - Equipment and procedures

3 Terms and Definitions

The following terms and definitions apply to this document.