GB/T 3517-2022 Active National standards

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

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

Price: $ 54

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

Pages: 12 pages

Scope

This document describes the method for determining the plasticity retention rate (PRI) of natural rubber.
PRI is a measure of the resistance of natural rubber to thermal oxidative aging. The higher the value, the better the resistance to thermal oxidative aging. PRI is not an absolute value, and it is impossible to provide an absolute grading for the plasticity values of different natural rubbers after thermal oxidative aging.
This document is applicable to the determination of PRI of natural rubber.

Development Information

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