ASTM E581-17a - 15.11.2017
 
Significance and Use

4.1 These test methods for the chemical analysis of metals and alloys are primarily intended to test such materials for compliance with compositional specifications. It is assumed that all who use these test 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.

 
1. Scope

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

Element

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
 Spectrophotometric Method
 [0.003 % to 0.02 %]

11 – 20

Manganese by the (Ethylenedinitrilo)
 Tetraacetic Acid (EDTA)—
 Back-Titrimetric Method [28 % to 32 %]


21 – 27

Phosphorus by the
 Molybdivanadophosphoric Acid
 Extraction Spectrophotometric Method
 [0.002 % to 0.014 %]


28 – 38

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 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.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

 
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Practice for Conducting Interlaboratory Studies of Methods for Chemical Analysis of Metals (Withdrawn 1997)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