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Standard Test Methods for Chemical Analysis of Alpha Olefin Sulfonates
1.1 These test methods cover the chemical analysis of alpha olefin sulfonates. The analytical procedures appear in the following order:
| Sections | |
| Moisture by the Distillation Method | 4-8 |
| Sodium Sulfate | 9-14 |
| Neutral Oil | 15-19 |
| Chlorides Calculated as Sodium Chloride (NaCl) | 20-24 |
| Alkalinity | 25-29 |
| pH | 30 and 31 |
| Determination of Color | 32-37 |
| Determination of Active Content by Methylene Blue Titration | 38-47 |
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific precaution statement see 36.1. Material safety data sheets are available for reagents and materials. Review them for hazards prior to usage. 32.1 This method covers the measurement of color in alpha olefin sulfonates using the platinum-cobalt scale and the Klett-Summerson colorimeter. 32.2 The instrument is calibrated each day with dilutions of Platinum-Cobalt Color Standard (No. 500 APHA). The Pt-Co value for the sample is determined from the calibration curve for the Klett instrument.
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