ASTM D500-95(2016)

 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