ASTM E581-76(1996)

ASTM E581-76(1996) - 1.1.1996

1. Scope

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

Element Concentration Range, % Copper 68.0 to 72.0 Manganese 28.0 to 32.0 Carbon 0.03 max Iron 0.01 max Phosphorus 0.01 max Silicon 0.05 max Sulfur 0.01 max

1.2 The test methods appear in the following order:

Sections Iron by the 1,10-Phenanthroline Photo- metric Method 8 to 17 Manganese by the (Ethylenedinitrilo) Tet- raacetic Acid (EDTA--Back-Titrimet- ric Method 18 to 24 Phosphorus by the Molybdivanadophos- phoric Acid Extraction Photometric Method 25 to 35

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 determine the applicability of regulatory limitations prior to use. For precaution to be observed in the use of certain reagents, refer to Practices E50. A specific precautionary statement is given in Note 2.

2. Referenced Documents

E29-22	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
D1193-06(2018)	Standard Specification for Reagent Water
E88-11(2017)	Standard Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical Composition
E173-93	Practice for Conducting Interlaboratory Studies of Methods for Chemical Analysis of Metals (Withdrawn 1997)
E135-23a	Standard Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials (Includes all amendments and changes 7/17/2023).
E60-11(2022)e1	Standard Practice for Analysis of Metals, Ores, and Related Materials by Spectrophotometry (Includes all amendments and changes 6/29/2022).
E55-23	Standard Practice for Sampling Wrought Nonferrous Metals and Alloys for Determination of Chemical Composition
E50-17	Standard Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials
E1601-19	Standard Practice for Conducting an Interlaboratory Study to Evaluate the Performance of an Analytical Method