This standard specifies the technical requirements, test methods, marking, packing and transportation of the constant speed friction test machine (hereinafter referred to as test machine).
This standard is applicable to the computer-controlled constant speed friction test machine and this standard also can be taken as reference to the ordinary constant speed friction test machine.
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this national standard. For dated reference, subsequent amendments to (excluding corrigenda), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest editions of these documents are applicable. For undated references, the latest edition of the normative document is applicable to these specifications.
GB/T 231.1 Metallic Materials—Brinell Hardness Test—Part 1: Test Method
GB 5763 Brake Linings for Automobiles
GB/T 7216 Gray Cast Iron Metallography
GB/T 9439 Grey Iron Castings
