Standard No.:	GB/T 12709-1991
English Name:	Lubricating oils－Determination of aging characteristics－Conradson carbon residues method
Chinese Name:	润滑油老化特性测定法
Professional Classification:	GB    National Standard
Source Content Issued by:	AQSIQ
Issued on:	1991-1-28
Implemented on:	1991-12-1
Status:	valid
Target Language:	English
File Format:	PDF
Word Count:	2000 words
Translation Price(USD):	40.0
Delivery:	via email in 1 business day

Subject Content and Application Scope This standard specifies the method to determine aging performance for lubricating oil. This standard is applicable to lubricating oil of petroleum base with metallic and non-metallic additive with evaporation loss no greater than 15% (m/m) in the determination process; it is also applicable to the lubricating oil with antioxidant additive and metallic detergent and dispersion agent type.

Chapter 1 Method A 1 Subject Content and Application Scope 2 Normative References 3 Method Overview 4 Instrument and Material 5 Reagent 6 Preparation 7 Test Procedure 8 Report on Calculation and Result 9 Precision Chapter 2 Method B 10 Subject Content and Application Scope 11 Normative References 12 Method Overview 13 Instrument and Material 14 Reagent 15 Preparation 16 Test Procedure 17 Calculation 18 Precision 19 Report Additional Explanation: