Standard No.:	GB/T 10421-2002
English Name:	Sintered metal friction materials--Determination of density
Chinese Name:	烧结金属摩擦材料 密度的测定
Chinese Classification:	H72    Powder metallurgy material and product
Professional Classification:	GB    National Standard
Source Content Issued by:	AQSIQ
Issued on:	2002-04-09
Implemented on:	2002-10-1
Status:	to be superseded
Superseded by:	GB/T 10421-2025 Sintered metal friction materials—Determination of density
Superseded on:	2026-1-1
Superseding:	GB/T 10421-1989 Sintered metal friction materials--Determination of density
Target Language:	English
File Format:	PDF
Word Count:	1500 words
Translation Price(USD):	95.0
Delivery:	via email in 1 business day

Sintered metal friction materials - Determination of density 1 Scope This standard specifies a method to determine the density of sintered metal friction materials. This standard is applicable to the determination of density of friction materials without the core veneer. 2 Normative references The following standards contain provision which, through reference in this standard, constitute provisions of this standard. At the time of publication, all editions cited are valid. All standards are subject to revision, and all parties using this standard are encouraged to investigate the possibility of applying the latest editions of the following standards. GB/T 3141-1994 Industrial liquid lubricants - ISO viscosity classification (eqv ISO 3448:1992) GB/T 5163-1985 Permeable sintered metal materials - Determination of density (eqv ISO 2738:1987) GB/T 5165-1985 Permeable sintered metal materials - Determination of oil content (eqv ISO 2737:1973) 3 Specimen 3.1 For parts with different friction layer thickness, prepare the specimen according to the following methods:

Foreword I 1 Scope 2 Normative references 3 Specimen 4 Test procedures 5 Test results 6 Test report