ASTM E478 – 08 Standard Test Methods for Chemical Analysis of Copper Alloys
The chemical analysis of copper alloys having certain chemical compositions is covered in ASTM E478 – 08. The values are stated in SI units.
Scope:
ASTM E478 – 08 is of great significance as it is considered as a reference method to test materials for compliance with compositional specifications. It is often performed by trained specialists who are capable of performing laboratory procedures skillfully and safely.
Procedure:
The analytical procedures appear in the following sections:
| Test Method | Section |
| Aluminum by the Carbamate Extraction-Ethyl-Enedinitrilotetracetate Titrimetric Test Method [2 % to 12 %] | 71-78 |
| Copper by the Combined ElectrodepositionGravimetric and Oxalyldihydrazide Photomet-ric Test Method [50 %, minimum] | 10-18 |
| Iron by the 1,10-Phenanthroline PhotometricTest Method [0.003 % to 1.25 %] | 19-28 |
| Lead by Atomic Absorption Spectrometry [0.002 % to 15 %] | 90-100 |
| Lead by the Ethylenedinitrilotetraacetic Acid(EDTA) Titrimetric Test Method [2.0 % to30.0 %] | 29-36 |
| Nickel by the Dimethylglyoxime Extraction Pho-tometric Test Method [0.03 % to 5.0 %] | 37-46 |
| Nickel by the Dimethylglyoxime GravimetricTest Method [4 % to 50 %] | 55-62 |
| Nickel by the Dimethylglyoxime GravimetricTest Method [4 % to 50 %] | 55-62 |
| Silver in Silver-Bearing Copper by Atomic Ab-sorption Spectrometry [0.01 % to 0.12 %] | 101-112 |
| Tin by the Iodometric Titration Test Method[0.5 % to 20 %] | 63-70 |
| Tin by the Phenylfluorone Photometric TestMethod [0.01 % to 1.0 %] | 113-123 |
| Zinc by Atomic Absorption Spectrometry [0.2 %to 2 %] | 79-89 |
| Zinc by the Ethylenedinitrilotetraacetic Acid(EDTA) Titrimetric Test Method [2 % to 40 %] | 47-54 |
Result:
In this way, by performing ASTM E478 – 08, chemical analysis of copper alloys can be done.
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