Standard No.:	GB/T 29035-2012
English Name:	Test method for physical-mechanical performance of flexible graphite ring
Chinese Name:	柔性石墨填料环试验方法
Chinese Classification:	J22    Sealing and sealing device
Professional Classification:	GB    National Standard
Source Content Issued by:	AQSIQ;SAC
Issued on:	2012-12-31
Implemented on:	2013-10-1
Status:	superseded
Superseded by:	GB/T 29035-2022 Test method for flexible graphite ring
Superseded on:	2023-7-1
Target Language:	English
File Format:	PDF
Word Count:	6000 words
Translation Price(USD):	120.0
Delivery:	via email in 1 business day

1 Scope This standard specifies test equipment, sample requirements, test procedures and calculation of test results for density, friction coefficient, compression and resilience rates, and thermal weight loss of flexible graphite ring. This standard is applicable to test for physical-mechanical performance of flexible graphite ring. 2 Test of Density 2.1 Apparatus 2.1.1 Balance, with a sensitivity of 0.001g. 2.1.2 Vernier caliper, to the accuracy of 0.02mm. 2.2 Samples There shall be at least 5 samples with rectangular sections in each group. 2.3 Test environment The ambient temperature is (23±5)℃. 2.4 Test procedures 2.4.1 Inside and outside diameters of the sample is measured with a vernier caliper at three points with equal radian, and the arithmetic mean, to the nearest 0.1mm, is taken. 2.4.2 Height of the sample is measured with a vernier caliper at three points with equal distance, and the arithmetic mean, to the nearest 0.1mm, is taken. 2.4.3 The mass of sample, to the nearest 0.01g, is weighed.

Foreword i 1 Scope 2 Test of Density 3 Test of Friction Coefficient 4 Test of Compression and Resilience Rates 5 Test of Thermal Weight Loss 6 Test Report