HG/T2785-2012 Ammonium Bisulfite for Industrial Use

1 Scope

This standard specifies the requirements, test methods and the labeling, packaging and other aspects of industrial ammonium bisulfite.

This standard applies to the ammonium bisulfite products made from sulfur dioxide in sulfuric acid tail gas by using ammonium bicarbonate or other ammonia sources as raw materials.

Molecular formula: NH4HSO3

Relative molecular mass: 99.11 (based on the 1991 International Relative Atomic Mass)

2 Citation Standards

The provisions contained in the following standards shall form the provisions of this standard by reference herein. All versions shown at the time of publication shall be valid. All standards may be revised, and users of this standard shall explore the possibility of adopting the latest versions of the following standards.

GB/T 601-88 Preparation of Standard Solutions for Titration Analysis (Volumetric Analysis) of Chemical Reagents

GB/T 603-88 Preparation of Reagents and Products Used in Test Methods for Chemical Reagents (equivalent to ISO 6353/1:1982)

GB/T 1250-89 Representation and Determination of Limit Values

GB/T 6678-86 General Rules for Sampling of Chemical Products

GB/T 6680-86 General Rules for Sampling of Liquid Chemical Products

GB/T 6682-92 Specifications and Test Methods for Water for Analytical Laboratories (equivalent to ISO 3696:1987)