Значение и использование

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. It is assumed that all who use these methods will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory.

Область применения

1.1 These test methods cover the chemical analysis of copper alloys having chemical compositions within the following limits:

ElementConcentration, %Aluminum12.0 maxAntimony1.0 maxArsenic1.0 maxCadmium1.5 maxCobalt1.0 maxCopper40.0 minIron6.0 maxLead27.0 maxManganese6.0 maxNickel50.0 maxPhosphorus1.0 maxSilicon5.0 maxSulfur0.1 maxTin20.0 maxZinc50.0 max

1.2 The test methods appear in the following order:

SectionsAluminum by the Carbamate Extraction-(Ethyl-enedinitrilo) Tetraacetate Titrimetric Test Method [2 to 12 %]70-77Copper by the Combined Electrodeposition Gravimetric and Oxalyldihydrazide Photometric Test Method [50 %, minimum]9-17Iron by the 1,10-Phenanthroline Photometric Test Method [0.003 to 1.25 %]18-27Lead by the Atomic Absorption Test Method [0.002 to 15 %]89-99Lead by the (Ethylenedinitrilo)tetraacetic Acid (EDTA) Titrimetric Test Method [2.0 to 30.0 %]28-35Nickel by the Dimethylglyoxime Extraction Photometric Test Method [0.03 to 5.0 %]36-45Nickel by the Dimethylglyoxime Gravimetric Test Method [4 to 50 %]54-61Silver in Silver-Bearing Copper by the Atomic Absorption Test Method [0.01 to 0.12 %]100-111Tin by the Iodatimetric Titration Test Method [0.5 to 20 %]62-69Tin by the Phenylfluorone Photometric Test Method [0.01 to 1.0 %]112-122Zinc by Atomic Spectrometry [0.2 to 2 %]78-88Zinc by the (Ethylenedinitrilo)tetraacetic Acid (EDTA) Titrimetric Test Method [2 to 40 %]46-53

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.