GB/T 1621-2023 (English Version)

Standard No.: GB/T 1621-2023
Language: Chinese, Available in English version
Release Date: 2023
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 1621-2023
Replace: GB/T 1621-2008

Scope: This document specifies the classification, requirements, test methods, inspection rules, marking, labeling and accompanying documents, packaging, transportation and storage of industrial ferric chloride. This document applies to industrial ferric chloride. Note: This product is mainly used as industrial etchant, catalyst in chemical industry, extractant in metallurgical industry, concrete waterproofing and anti-corrosion agent, industrial water treatment and raw materials for the preparation of other iron salts and pigments.

Introduction

In-depth interpretation of the new industrial ferric chloride standard GB/T 1621-2023

Industrial ferric chloride is an important chemical product, widely used in etchants, catalysts and other fields. This article will analyze the new standard from multiple dimensions such as classification, index requirements, and test methods, and provide implementation suggestions.

Comparison of standard frameworks and key points of updates

Old version GB/T 1621—2008	New version GB/T 1621—2023	Update notes
Scope not divided in detail	Clearly divided into Class I and Class II uses	New classification requirements
No index requirements for ferric chloride hexahydrate	Added appearance and index requirements for ferric chloride hexahydrate	Strengthen product standardization
Type inspection not specified	New type inspection requirements	Enhance quality monitoring

Classification and use analysis

Industrial ferric chloride is divided into:

Class I: used in high-end fields such as etchants and catalysts
Class II: Mainly used in water treatment and other fields

Indicator requirements and table comparison

Items	Class I			Class II		Ferric chloride solution
Ferric chloride (FeCl₃) content/%	99.0	98.0	96.0	58.0	56.0	38.0	-
Ferrous chloride (FeCl₂) content/%	0.5	1.0	2.0	-		0.4	0.5	1.0

Implementation Suggestions

Manufacturers should:

Establish a sound quality management system
Perform regular type inspections
Optimize production processes to meet the requirements of the new standard
Strengthen technical exchanges with industry experts

Summary

The release of GB/T 1621—2023 marks a new height in the standardization of industrial ferric chloride. Enterprises need to pay close attention to changes in standards and ensure that product quality meets the requirements of the new regulations to enhance market competitiveness.

GB/T 1621-2023 Referenced Document

GB 190 Packing symbol of dangerous goods
GB/T 191-2008 Packaging.Pictorial marking for handling of goods
GB/T 4472-2011 Detemination of density and relative density for chemical products
GB/T 4482-2018 Water treatment chemicals.Ferric chloride
GB/T 6678 General principles for sampling chemical products
GB/T 6680 General rules for sampling liquid chemical products
GB/T 6682 Water for analytical laboratory use.Specification and test methods
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
HG/T 3696.1 Inorganic chemicals for industrical use Preparations of standard and reagent solutions for chemical analysis.Part 1:Preparations of standard volumetric solutions
HG/T 3696.3 Inorganic chemicals for industrical use.Preparations of standard and reagent solutions for chemical analysis.Part 3: Preparations of reagent solutions

GB/T 1621-2023 history

2023 GB/T 1621-2023 Industrial ferric chloride
2008 GB/T 1621-2008 ferric chloride for industrial use
1993 GB/T 1621-1993 Ferric chloride for industrial use