GB/T 34698-2017 in English

VALID

Rubber compounding ingredients-Determination of water soluble substance of silica，precipitated，hydrated-Electrolytic conductivity method

Issued on:2017-11-01
Implemented on:2018-05-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $160.00
$156.00

Standard No:	GB/T 34698-2017
Document status:	VALID
Title in English:	Rubber compounding ingredients-Determination of water soluble substance of silica，precipitated，hydrated-Electrolytic conductivity method
Title in Chinese:	橡胶配合剂沉淀水合二氧化硅水可溶物含量的测定电导率法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2017-11-01
Implemented on:	2018-05-01
ICS Classification:	83.040.20-Rubber compounding ingredients
Professional Classification:	GB-National Standard
Related Topics:	Conductive Rubber Formulation Conductive Rubber Formulation Method for Determination of Soluble Content in Water Soluble matter water soluble content Water soluble content test Water soluble content test Content Conductivity of silica Conductivity of silica Determination of silicon dioxide content in water by titration method rubber water soluble The content of oxidizable substances in water conductivity oxide Conductivity of silica How to Determine the Water Content of Hydrosols Is niobium ditelluride soluble in water? Oxide in water Oxide conductivity conductivity oxide Water precipitation GBT34698 GB/T 34698-2017 precipitation method coordination method Complexing agent in co-precipitation method Oxygenate Standard Curve Solvents Precipitate in aqueous solution Secondary purified water conductivity Wastewater conductivity measurement Water absorption test of silicone rubber Soluble silica quality Methods for increasing the water solubility of compounds Determination of water soluble matter Determination method of water soluble matter Rubber moisture content test Silicone rubber water absorption Rubber moisture content test Detection method of colloidal silica in water

《GB/T 34698-2017橡胶配合剂沉淀水合二氧化硅水可溶物含量的测定电导率法》由TC35（全国橡胶与橡胶制品标准化技术委员会）归口，TC35SC5（全国橡胶与橡胶制品标准化技术委员会炭黑分会）执行，主管部门为中国石油和化学工业联合会。

Introduction

GB/T 34698—2017 Standard Overview

This standard specifies the method for determining the water-soluble content in precipitated hydrated silica by the conductivity method, which is applicable to precipitated hydrated silica produced by the sulfuric acid method. Products produced by other production methods can be used as a reference.

Analysis of Standard Formulation Background and Technological Evolution

Dimension	Traditional Method	Conductivity Method
Detection Principle	Chemical Titration Method	Relationship between Solution Conductivity and Ion Concentration
Operation Complexity	High, requires professional personnel to operate	Relatively simple, with a high degree of automation
Detection Accuracy	High	High and good repeatability

Comparative Analysis of Standard Frameworks

Compared with the traditional chemical titration method, the conductivity method has significantly improved the ease of operation and detection efficiency. The following is a specific comparison:

Case Study: Practical Application of Conductivity Method

Taking the precipitated hydrated silica produced by the sulfuric acid method as an example, the water-soluble content was determined by the conductivity method. The results showed that this method has high accuracy and repeatability. For example, the regression equation calculation example provided in Appendix A shows how to use the standard reference solution to establish a calibration curve and apply it to the determination of actual samples.

Implementation Recommendations

Equipment Selection:It is recommended to use a conductivity meter equipped with a conductivity electrode with a constant of 1.0 cm⁻¹ to ensure measurement accuracy.
Sample Preparation:For granulated precipitated hydrated silica samples, they need to be ground in a mortar and passed through a Φ200mm×25mm/0.25mm test sieve.
Quality Control: Regularly calibrate the instrument to ensure the validity of the regression equation and update the laboratory's regression model according to the company's production situation.

More samples: YD/T 3934-2021 JC/T 2453-2018 JGJ 94-2008

Sample only — not a preview of GB/T 34698-2017