GB/T 6284-2006 in English

《GB/T 6284-2006化工产品中水分测定的通用方法 干燥减量法》由TC63（全国化学标准化技术委员会）归口，TC63SC1（全国化学标准化技术委员会无机化工分会）执行，主管部门为中国石油和化学工业联合会。
本标准规定了固体化工产品中水分测定的通用方法----干燥减重法。本方法适用于加热稳定的固体化工产品中水分的测定。

Chemical products for industrial use - General method for determination of water content - The loss of mass on drying method

1 Scope

This standard specifies the general method for determination of water content in chemical products for industrial use, i.e. the loss of mass on drying method.

This method is applicable to the determination of water content in solid chemical products heated to stabilization.

2 Terms and definitions

For the purposes of this standard, the following terms and definitions apply.

2.1
the loss of mass on drying method
method of reducing the mass of solid matter by evaporating volatile substances, including water, in solid products by heating

Note: When the actual water content in products is determined using the loss of mass on drying method, the following three conditions shall be met:

 only water is volatilized;

 no chemical change occurs, or although chemical change occurs, it is not accompanied by mass change;

 water may be completely removed

Foreword i
1 Scope
2 Terms and definitions
3 Test method
Annex A (Informative) Structural differences between this standard and the Japanese standard