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1.1 These test methods cover procedures for the chemical analysis of nickel-copper alloys having chemical compositions within the following limits:Element Concentration Range, % Nickel 40 to 90 Cobalt 0.01 to 1.0 Copper 10 to 50 Iron 0.1 to 5.0 Manganese 0.1 to 2.5 Carbon 0.01 to 1.0 Silicon 0.01 to 5.0 Sulfur 0.001 to 0.1 Aluminum 0.01 to 4.0
1.2 The analytical procedures appear in the following order: (This standard contains more than one test method for some elements. In some cases, the use of multiple test methods is needed to cover the concentration range of the scope of the standard; in others, multiple test methods are supplied to allow for variations in availability of instruments and other facilities among laboratories.)Sections Copper: Perchloric Acid-Electrolytic Test Method 9 to 13 Sulfuric Acid-Electrolytic Test Method 14 to 18 Nickel: Dimethylglyoxime-Gravimetric Test Method 19 to 22 Dimethylglyoxime-Electrolytic Test Method 23 to 26 Cobalt: Alpha-Nitroso-beta-Naphthol Test Method 27 to 29 Nitroso-R-Salt-Photometric Test Method 30 to 37 Iron: Stannous-Chloride-Potassium Dichromate Test Method 38 to 40 Thiocyanate-Photometric Test Method 41 to 48 Manganese: Persulfate-Arsenite Test Method 49 to 52 Periodate-Photometric Test Method 53 to 60 Carbon, Total, by the Direct Combustion Test Method 61 to 63 Silicon: Perchloric Acid Test Method 64 to 66 Sulfuric Acid Test Method 67 to 68 Sulfur: Gravimetric Test Method 69 to 71 Direct Combustion-Iodate Test Method 72 to 75 Aluminum by the Mercury Cathode-Cupferron-8-Hydroxyquinoline Test Method 76 to 81
1.3 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 5.