GB/T 20784-2018 in English

Comparative Analysis of Standard Frameworks

Compared with GB/T20784-2013, the main technical changes include: adjustment of product technical indicators; new instrumental analysis methods and temperature titration methods for potassium oxide; addition of the determination method of total nitrogen content (GB/T 22923); and the detection requirements for harmful elements (arsenic, cadmium, lead, chromium, mercury) (GB/T 23349). These changes reflect higher requirements for product quality control, especially the restrictions on harmful substances.

Implementation Suggestions

• Manufacturers should establish a sound quality management system to ensure that their products meet the requirements of the standards.
• The laboratory needs to be equipped with advanced testing equipment, such as automatic analyzers and temperature titrators, to accurately measure key indicators.
• During the production and storage process, strictly control the content of moisture, particle size and harmful elements to avoid environmental pollution.