GB/T 15906-2017 in English

VALID

Determination of isobutylene-isoprene rubber or polyisobutylene content in rubber

Issued on:2017-07-12
Implemented on:2018-02-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $100.00
$97.00

Standard No:	GB/T 15906-2017
Document status:	VALID
Title in English:	Determination of isobutylene-isoprene rubber or polyisobutylene content in rubber
Title in Chinese:	橡胶中异丁烯-异戊二烯橡胶或聚异丁烯含量的测定
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2017-07-12
Implemented on:	2018-02-01
Superseding:	GB/T 15906-1995 Rubber－Determination of isoprene—isobutylene rubber or poly isobutylene content
ICS Classification:	83.060-Rubber
Chinese Classification:	G40-Rubber products in general
Professional Classification:	GB-National Standard
Related Keywords:	butyl rubber content isobutylene-isoprene rubber polyisobutylene content rubber introduction gb/t butyl rubber
Related Topics:	Isoprene Isoprene impurity Isoprene + impurity heat polymerized styrene butadiene rubber Butadiene Oxygen Content Butene Butyl Rubber Shedding Acenaphthylene and content Solution isoprene rubber Isobutylene-isoprene rubber or polyisobutylene content in rubber isodiene iso Isobutylene Polyisoprene rubber and natural rubber Properties of isobutylene isobutylene Elastic polychloroprene rubber Isobutylene mass Judgment Diacetyl content Styrene Isoprene Rubber Gel content in polyethylene Gel content in raw rubber Isoprene rubber Isobutylene-isoprene copolymer Isobutylene Viscosity domestic isoprene purity Isoprene Purity Isobutylene Viscosity Butadiene Detection Abnormal gc content Isoprene Analysis Manganese content in rubber Determination of butenedioic acid UV heterodimer Isonitrile content Isopentidine Determination of butene Isoprene rubber Isobutylene + Viscosity Silicon content in rubber Silicon content in rubber Styrene Isoprene Rubber Butadiene Copolymer Rubber Isoprene rubber Butadiene Determination Method Isobutyrylation Amino content in rubber The detection method of butadiene Colloid content in water isopentenyne Isobutylene butadiene trimer Isoprene glue Butadiene + formula Isodiene Acrylonitrile isoprene Food Grade Polyisobutylene Glutaconyl Prenylation Butadiene Detection Suction bottle GBT15906 GB/T 15906-1995 GB/T 15906-2017 Isobutyric acid national standard testing Isobutyric acid detection Isoprene products Butadiene system oxygen content isopentenic acid Isobutylene storage tank Isoprene glycol Production of chloroprene rubber sheets Isobutylene products Polybutylene Enterprise Polyisobutylene testing Industrial grade medium molecular weight polyisobutylene Isobutylene industry Refined isoprene Industrial isobutylene quality Polyisobutylene grading Butadiene detection method in soil Butadiene content standards in soil Monitoring methods for hexachlorobutadiene in soil Medium molecular weight polyisobutylene grading Rubber moisture content test Testing of isoprene rubber Polyisobutylene detection Isobutylene emissions polyisobutylene execution Polyisobutylene pharmaceutical quality Butene moisture determination method Polyisobutylene viscosity Liquid polyisoprene rubber company Isobutylene Calibration Polyisobutylene International Polyisobutylene product quality polyisobutylene execution Rubber moisture content test Isoprene rubber performance test Polyisobutylene quality Isobutanol content in soil Polyisoprene apron detection Determination method of butadiene in soil Isobutanolamine content detection method Method for determination of difference in filling volume of traditional Chinese medicine Diisobutyl ether execution How to preserve isoprene in the laboratory Isobutylene pipeline Chromium content in rubber products Determination of butadiene in soil

《GB/T 15906-2017橡胶中异丁烯-异戊二烯橡胶或聚异丁烯含量的测定》由TC35（全国橡胶与橡胶制品标准化技术委员会）归口，TC35SC2（全国橡胶与橡胶制品标准化技术委员会通用试验方法分会）执行，主管部门为中国石油和化学工业联合会。

Introduction

GB/T 15906-2017 Standard Overview

GB/T 15906-2017 "Determination of Isobutylene-Isoprene Rubber or Polyisobutylene Content in Rubber" is a Chinese national standard used to determine the content of specific components in rubber materials. This standard was issued and implemented in 2017, replacing the previous GB/T 15906-1995 version.

Background of Standard Formulation

With the development of the rubber industry, the requirements for material properties are increasing. Determination of the content of isobutylene-isoprene rubber (butyl rubber for short) and polyisobutylene is crucial for product quality control. This standard updates the content of the old version and improves the test methods and technical requirements.

Technical Specification Comparison

Standard Dimensions	GB/T 15906-1995	GB/T 15906-2017 (Improved)
Test Methods	Nitric Acid Digestion, Buchner Funnel Filtration	Nitric Acid Digestion, G4 Sand Core Funnel Filtration
Reagent Requirements	No clear requirement for the purity of tert-butyl hydroperoxide	Explicit requirement that the purity of tert-butyl hydroperoxide should not be less than 70%
Instruments and Equipment	Conventional extraction device	Improved extraction device, equipped with ground-mouth recovery bottle

Detailed explanation of test steps

1. Sample preparation

Take about 15g of sample and dry it to constant weight.
Weigh three samples to an accuracy of 0.1mg.

2. Nitric acid digestion

Add nitric acid in a fume hood to allow the sample to react fully.
If the reaction is slow, use a heating device to assist.

3. Filtration and washing

Use a G4 sand core funnel for filtration and wash thoroughly with nitric acid and hot water.
Precipitate polyisobutylene with anhydrous ethanol and set aside after drying.

4. Extraction of polyisobutylene

Add tert-butyl hydroperoxide and reflux for extraction for more than 4 hours.
Filter while hot, wash and collect the filtrate.

5. Calculation of results

Calculate the polyisobutylene content according to the formula, accurate to two decimal places.
The butyl rubber content is 1.03 times the polyisobutylene content.

Implementation suggestions

In practical applications, it is recommended that:

Strictly follow the standard operating procedures for testing.
Regularly calibrate the instruments and equipment to ensure measurement accuracy.
Pay attention to safety precautions, especially the use of high temperature and hydrogen peroxide.

More samples: GB 18306-2015 JJG 21-2008 QC/T 942-2021

Sample only — not a preview of GB/T 15906-2017

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