GB/T 3517-2022 Active National standards

GB/T 3517-2022 Rubber,raw natural—Determination of plasticity retention index (PRI)

Publish Date: 2022-10-12 Implement Date: 2022-10-12 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 3517-2022

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Forestry chemical raw materials

ICS Name: Rubber latex and raw rubber

Publish Date: 2022-10-12

Implement Date: 2022-10-12

Publisher: 国家市场监督管理总局、国家标准化管理委员会

Technical Committee: 全国橡胶与橡胶制品标准化技术委员会天然橡胶分技术委员会(SAC/TC 35/SC 8)

Pages: 12 pages

Scope

本文件描述了测定天然生胶塑性保持率(PRI)的方法。
PRI是天然生胶耐热氧老化的量度，数值越高表明耐热氧老化性能越好。PRI不是一个绝对值，对于不同的天然橡胶热氧老化后的塑性值无法给出绝对的分级。
本文件适用于天然生胶PRI的测定。

Development Information

Drafting Units:

中国热带农业科学院农产品加工研究所、高特威尔科学仪器(青岛)有限公司、中策橡胶集团股份有限公司、云南省天然橡胶及咖啡产品质量监督检验站

Drafting Persons:

刘宏超、余和平、王鹏、郦坚、于龙、卢光、王启方、刘立、王奎、张江梅

Word Count: 26 Thousand words Pages: 12 pages

Replace the following standards

GB/T 3517-2014 Rubber, raw natural—Determination of plasticity retention index(PRI)

Referenced Standards

GB/T 2941-2006 Rubber—General procedures for preparing and conditioning test pieces for physical test methods GB/T 3510-1992 Rubber, unvulcanized—Determination of plasticity—Rapid plastimeter method GB/T 3510-2006 Rubber, unvulcanized—Determination of plasticity—Rapid plastimeter method GB/T 3510-2023 Rubber,unvulcanized—Determination of plasticity—Rapid-plastimeter method GB/T 6038-1993 Rubber test mixes—Preparation, mixing and vulcanization—Equipment and procedures GB/T 6038-2006 Rubber test mixes—Preparation,mixing and vulcanization—Equipment and procedures GB/T 15340-1994 Rubber, raw, natural and synthetic Sampling and further preparative procedures GB/T 15340-2008 Rubber, raw natural and raw synthetic—Sampling and further preparative procedures GB/T 15340-2025 Rubber,raw natural and raw synthetic—Sampling and further preparative procedures

Adopt standards

ISO 2930:2017

Related Standards

GB/T 8089-1987 Replaced

GB/T 8089-1987 Raw natural rubber—Smoked sheets

Publish Date: 1987-07-10

GB/T 8090-1987 Replaced

GB/T 8090-1987 Raw natural rubber—White crepes and pale crepes

Publish Date: 1987-07-10

GB/T 8083-1987 Replaced

GB/T 8083-1987 Raw natural rubber—Standard rubber—Sampling

Publish Date: 1987-07-27

GB/T 8084-1987 Abolished

GB/T 8084-1987 Raw natural rubber—Sample preparation

Publish Date: 1987-07-27

GB/T 8086-1987 Replaced

GB/T 8086-1987 Raw natural rubber—Determination of dirt

Publish Date: 1987-07-27

GB/T 8290-1987 Replaced

GB/T 8290-1987 Natural rubber latex concentrate—Sampling

Publish Date: 1987-11-19