ASTM D500 – Standard Test Methods of Chemical Analysis of Sulfonated and Sulfated Oils
Description:
Abstract
These test methods cover the chemical analysis of sulfonated and sulfated oils. Water by distillation with volatile solvent and moisture and volatile matter by hot-plate shall be tested to meet the requirements prescribed. Titration test, extraction-titration test, and ash-gravimetric test shall be performed to meet the requirements specified. Total desulfated fatty matter, total active ingredients, unsaponifiable non-volatile matter, inorganic salts, total alkalinity, and total ammonia shall be tested to meet the requirements prescribed. In the absence of ammonium or triethanolamine soaps test method, brine test method, and in the presence of ammonium or triethanolamine soaps test method shall be performed to meet the requirements prescribed. Water-immiscible organic solvents volatile with steam shall be tested to meet the requirements prescribed.
Scope
1.1 These test methods cover the chemical analysis of sulfonated and sulfated oils. The analytical procedures appear in the following order:
| Section | |
| Moisture: | |
| Test Method A. Water by Distillation with Volatile Solvent | 4 – 9 |
| Test Method B. Moisture and Volatile Matter by Hot-Plate Method | 10 – 14 |
| Organically Combined Sulfuric Anhydride: | |
| Test Method A. Titration Test | 15 – 19 |
| Test Method B. Extraction-Titration Test | 20 – 24 |
| Test Method C. Ash-Gravimetric Test (in the Presence of True Sulfonates) | 25 – 28 |
| Total Desulfated Fatty Matter | 29 – 32 |
| Total Active Ingredients | 33 – 36 |
| Unsaponifiable Nonvolatile Matter | 37 – 41 |
| Inorganic Salts | 42 – 46 |
| Total Alkalinity | 47 – 49 |
| Total Ammonia | 50 – 52 |
| Acidity as Free Fatty Acids or Acid Number: | |
| Test Method A. In the Absence of Ammonium or Triethanolamine Soaps | 53 – 56 |
| Test Method B. In the Presence of Dark Colored Oils but in the Absence of Ammonium or Triethanolamine Soaps (Brine Test) | 57 – 60 |
| Test Method C. In the Presence of Ammonium or Triethanolamine Soaps | 61 – 63 |
| Water-Immiscible Organic Solvents Volatile with Steam | 64 – 70 |
1.2 The values stated in inch-pound units are to be regarded as the standard. The metric equivalents of inch-pound units may be approximate.
ASTM D5