This standard provides two methods for the determination of phosphorus content in fluorescent whitening agent products: phosphorus molybdenum blue method and phosphorus molybdenum yellow method. The phosphorus molybdenum blue method is applicable to all phosphorus content determination, while the phosphorus molybdenum yellow method is specific to fluorescent whitening agents with phosphorus content above 500 mg/kg. The standard includes requirements for reagents, operation steps, and data processing to ensure the accuracy of the determination results. Normative reference documents include specifications for analytical laboratory water to support accuracy and conformity during the determination process.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | G55 | ICS | 71.100.01;87.060.10 |
| Release Date | 2019-12-31 00:00:00 | Implementation Date | 2020-11-01 00:00:00 |