Standard No.:	QC/T 491-1999
Chinese Name:	汽车筒式减振器 尺寸系列及技术条件
English Name:
Professional Classification:	QC Professional Standard - Automobile
Issued by:
Issued on:
Implemented on:
Status:	ABOLISHED
Replace By:	QC/T491-2018
Replace By Date:
Language:	English
File Format:	PDF
Word Count:
Price(USD):	please email coc@codeofchina.com for quotation
Delivery:	via email in

This standard is applicable to telescopic shock absorber for automotive suspension.
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1.2 For the code when test is carried out for telescopic shock absorber, resistance refers to damping force with 0.52m/s piston speed, which is the performance parameters for end-of-manufacturing inspection of shock absorber; if necessary, the test may be carried out according to the requirements of speed which is different from that of this standard through negotiation between the manufacturer and the user.
1.2.1 Range of rated recovery resistance and rated compression resistance is shown in Table 2.