GB/T 11987-2022 in English
VALIDSurface active agents—Technical alkane sulphonates—Determination of total alkane sulphonates content
- Issued on:2022-12-30
- Implemented on:2023-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$146.00
Introduction
GB/T11987-2022 Standard Overview
GB/T11987-2022 replaces the original GB/T11987-1989. The main revisions include changes in the determination method and technical alignment with ISO6122:1978. The new standard introduces potentiometric titration, replacing the volumetric method in the old version, and optimizes reagent requirements and experimental procedures.
Background of Standard Formulation
With the development of the surfactant industry, higher requirements are placed on the detection of alkane sulfonates. The revision of GB/T11987-2022 aims to improve the accuracy and operability of the determination method and align with international standards to meet the needs of the global market.
Technology Evolution Analysis
| Technical Points | Old Standard | New Standard |
|---|---|---|
| Determination Method | Volumetric Method | Potentiometric Titration |
| Reagent Requirements | No Explicit Requirements | GB/T6682 Grade 3 Water and Above |
| Data Processing | Manual Calculation | Automated Titration System Support |
Standard Framework Comparison
The following table shows the main differences between GB/T11987-2022 and ISO6122:1978:
| Standard Clauses | ISO6122:1978 | GB/T11987-2022 |
|---|---|---|
| Determination Method | Volumetric Method | Potentiometric Titration |
| Reagent Requirements | Unspecified | GB/T6682 Grade 3 Water and Above |
| Data Accuracy | ±1.3% | Improved to ±0.93% |
Implementation Suggestions
When implementing this standard, enterprises should pay attention to the following points:
- Instrument selection:Ensure the use of balances and potentiometric titrators that meet the accuracy requirements.
- Reagent preparation:Use GB/T6682 grade 3 or above pure water to ensure experimental accuracy.
- Operation training:Conduct systematic training for laboratory personnel to master the key points of the new version of the standard.

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