Standard No.:	QC/T 307-1999
English Name:	Technical specifications for vacuum booster
Chinese Name:	真空助力器技术条件
Chinese Classification:	T24    Braking system
Professional Classification:	QC    Professional Standard - Automobile
Source Content Issued by:	CNPC
Implemented on:	1986-10-1
Status:	superseded
Superseded by:	QC/T 307-2016 Performance requirements and bench test methods of vacuum booster for automobile
Superseded on:	2016-9-1
Superseding:	ZB T24003-1987
Target Language:	English
File Format:	PDF
Word Count:	4000 words
Translation Price(USD):	100.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the performance requirements, test methods, inspection rules as well as marking, packaging, transportation and storage of vacuum booster assembly for automobile. This standard is applicable to vacuum booster for automobile. 2 Normative references The following normative documents contain provisions which, through reference in this text, 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 13384-1992 General specifications for packing of mechanical and electrical product 3 Definitions For the purpose of this standard, the following definitions apply. 3.1 initial force minimum input force at which the vacuum booster produces an output force

Foreword II 1 Scope 2 Normative references 3 Definitions 4 Technical requirements 5 Test methods 6 Inspection rules 7 Marking, packaging, transportation and storage