1.1 This standard describes the determination of sulfated ash content (sometimes called residue-on-ignition) of organic materials by thermogravimetry. The method converts common metals found in organic materials (such as sodium, potassium, lithium, calcium, magnesium, zinc, and tin) into their sulfate salts permitting estimation of their total content as sulfates or oxides. The range of the test method is from 0.1 to 100  % metal content.
1.1 This standard describes the determination of sulfated ash content (sometimes called residue-on-ignition) of organic materials by thermogravimetry. The method converts common metals found in organic materials (such as sodium, potassium, lithium, calcium, magnesium, zinc, and tin) into their sulfate salts permitting estimation of their total content as sulfates or oxides. The range of the test method is from 0.1 to 100  % metal content.
| SDO | ASTM: ASTM International |
| Document Number | E2403 |
| Publication Date | Sept. 1, 2012 |
| Language | en - English |
| Page Count | 3 |
| Revision Level | 06(2012) |
| Supercedes | |
| Committee | E37.01 |