Standard No.:	QC/T 702-2004
English Name:	Method of reliability test for catalytic converter of motorcycles and mopeds
Chinese Name:	摩托车和轻便摩托车用催化转化器可靠性试验方法
Chinese Classification:	T80    Motorcycles in general
Professional Classification:	QC    Professional Standard - Automobile
Issued by:	NDRC
Issued on:	2004-2-10
Implemented on:	2004-8-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	5000 words
Price(USD):	150.0
Delivery:	via email in 1 business day

Method of reliability test for catalytic converter of motorcycles and mopeds 1 Scope This standard specifies the terms, definitions, test procedure, test method, test result analysis and report of reliability tests for catalytic converters of motorcycles and mopeds on roads and engine beds. This standard is applicable to reliability tests for catalytic converters of motorcycles and mopeds. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition applies. GB/T 5363-1995 Method of bed test of gasoline engine for motorcycles and mopeds GB/T 5374-1995 Test method of reliability for motorcycles and mopeds GB/T 5378-1994 General rules of running test for motorcycles and mopeds GB 14621 Limits and measurement methods for exhaust emissions from motorcycles and mopeds at idle speed GB 14622 Limits and measurement methods for exhaust emissions from motorcycles under running mode GB 17930-1999 Unleaded petrol (gasoline) for motor vehicles GB 18176 Limits and measurement methods for exhaust emissions from mopeds under running mode   3 Terms and definitions For the purpose of this standard, the following terms and definitions apply. 3.1 catalytic converter catalytic device mounted in the motorcycle exhaust system, which can reduce the emissions of carbon monoxide (CO), hydrocarbons (HC) and nitrogen oxides (NOx) in the exhaust system through the reduction and oxidation reaction of catalyst 3.2 tested muffler exhaust muffler equipped with catalytic converter inside

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Test procedure 5 Test method 6 Test result analysis and report Annex A (Normative) Test record of exhaust emissions Annex B (Normative) Bed rapid aging test cycle Annex C (Normative) Decay curve of conversion ratio of catalytic converter