GB/T 20200-2022 in English

1. Background and significance of standard revision

Sodium α-olefin sulfonate (AOS) is an important surfactant, widely used in washing and cleaning. GB/T20200-2022 is a revised version of GB/T20200-2006, which mainly optimizes and supplements technical requirements, test methods and other contents to meet the needs of industry development.

1.1 Main Background of Standard Revision

• Technological progress in the industry drives standard update
• Meet changes in market demand
• Improve product quality requirements

2. Interpretation of main technical indicators

2.1 Analysis of physical and chemical indicators

The main physical and chemical indicators of sodium α-olefin sulfonate include active matter content, unsulfonated matter content and sodium sulfate content. Among them, active matter content is the core indicator for measuring product quality and is directly related to its performance in detergents.

3. Comparative analysis of standard frameworks

4. Implementation suggestions and precautions

4.1 Key points for implementation by manufacturers

Suggestions:

1. Strictly control the quality of raw materials to ensure that the alkane chain length is within the range of C12~C18
2. Adopt advanced gas sulfur trioxide membrane sulfonation process
3. Regularly calibrate the testing equipment to ensure data accuracy

4.2 Precautions for inspection agencies

• Carry out sampling inspection strictly in accordance with standard requirements
• Properly preserve inspection records and original data
• Regularly participate in proficiency verification to ensure the level of testing