The standard test methods for the chemical analysis of high-temperature, electrical, magnetic, and other similar iron, nickel, and cobalt alloys are covered under the ASTM E354-93 standard test. These test methods for the chemical analysis of metals and alloys are primarily intended as referee methods to test such materials for compliance with compositional specifications.
Scope:
ASTM E354-93 standard method includes the test methods for chemical analysis of high-temperature iron, nickel, and cobalt alloys with demarcated chemical compositions. methanol. The test methods in this standard are contained under the sections as follows:
| Test Methods | Sections |
| Manganese by the Periodate Photometric Method (0.05 to 2.00%) | 8 |
| Phosphorus by the Molybdenum Blue Photometric Method (0.002 to 0.08%) | 18 |
| Sulfur by the Combustion-Iodate Titration Method (0.005 to 0.1%) | 37 |
| Silicon by the Gravimetric Method (0.05 to 5.00%) | 46 |
| Cobalt by the Ion-Exchange-Potentiometric Titration Method (2 to 75%) | 53 |
| Cobalt by the Nitroso-R-Salt Photometric Method (0.10 to 5.0 %) | 61 |
| Copper by the Sulfide Precipitation-Electrodeposition Gravimetric Method (0.01 to 10.00 %) | 71 |
| Carbon, Total, by the Combustion Gravimetric Method (0.05 to 1.10%) | 79 |
| Copper by Neocuproine Photometric Method (0.01 to 10.00 %) | 90 |
| Aluminium, Total, by the 8-Quinolinol Gravimetric Method (0.20 to7.00%) | 100 |
| Nickel by the Dimethylglyoxime Gravimetric Method (0.1 to 84.0%) | 135 |
| Tin by the Solvent Extraction–Atomic Absorption Method (0.002 to 0.10%) | 143 |
| Molybdenum by the Photometric Method (0.01 to 1.50%) | 153 |
| Chromium by the Atomic Absorption Method (0.006 to 1.00%) | 165 |
| Chromium by the Peroxydisulfate Oxidation—Titration Method(0.10 to 33.00 %) | 175 |
| Molybdenum by the Ion Exchange 8-Hydroxyquinoline Gravimetric Method (1.5 to 30 %) | 184 |
| Iron by the Silver Reduction Titrimetric Method (1.0 to 50.0%) | 192 |
Results:
Combustion gravimetric method is used determine the total carbon content. The sample is burned in a stream of oxygen, and the carbon dioxide in the evolved gases is collected in a suitable absorbent and weighed. The results obtained are as
| Test Specimen | Percent Carbon |
| Monel-type alloy | 0.080 |
| High-speed steel | 0.81 |
| Nickel-base alloy | 1.49 |
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