ASTM E2371-04 - 1.6.2004
 
Significance and Use

This method for the chemical analysis of titanium and titanium alloys is primarily intended to test material for compliance with specifications of chemical composition.

It is assumed that all who use this method will be trained analysts capable of performing common laboratory procedures skillfully and safely, and that the work will be performed in a properly equipped laboratory.

The method is designed to give the maximum flexibility analyzing elements in the titanium matrix. Thus options are given in calibration and analysis to accommodate the variety of ICP and DCP spectrometers and their auxiliary systems.

 
1. Scope

1.1 This method describes the analysis of titanium and titanium alloys by ICP-AES (Inductively Coupled Plasma) and DCP-AES (Direct Current Plasma) for the following elements:

ElementApplicationRange (wt.%)QuantitativeRange (wt.%)
Aluminum0-80.001 to 8.0
Boron0-0.040.0008 to 0.01
Chromium0-50.005 to 4.0
Copper0-0.60.002 to 0.5
Iron0-30.004 to 3.0
Manganese0-0.040.001 to 0.01
Molybdenum0-80.004 to 6.0
Nickel0-10.001 to 1.0
Silicon0-0.50.02 to 0.4
Tin0-40.02 to 3.0
Vanadium0-150.01 to 15.0
Yttrium0-0.040.001 to 0.004
Zirconium0-50.003 to 4.0

1.2 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. Specific safety hazards statements are given in Section 9.

 
2. Referenced Documents

E50-17

Standard Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials

E135-23a

Standard Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials (Includes all amendments and changes 7/17/2023).

ISO Guide 98-3

Uncertainty of measurement Part 3: Guide to the Expression of Uncertainty in Measurement (GUM: 1995)-First Edition

E2626-08

Standard Guide for Spectrometric Analysis of Reactive and Refractory Metals

E1832-08(2017)

Standard Practice for Describing and Specifying a Direct Current Plasma Atomic Emission Spectrometer

E1763-06

Standard Guide for Interpretation and Use of Results from Interlaboratory Testing of Chemical Analysis Methods (Withdrawn 2015)

E1601-19

Standard Practice for Conducting an Interlaboratory Study to Evaluate the Performance of an Analytical Method

E1479-16

Standard Practice for Describing and Specifying Inductively Coupled Plasma Atomic Emission Spectrometers

E1329-10

Standard Practice for Verification and Use of Control Charts in Spectrochemical Analysis (Withdrawn 2019)

E1097-12(2017)

Standard Guide for Determination of Various Elements by Direct Current Plasma Atomic Emission Spectrometry

E2027-17

Standard Practice for Conducting Proficiency Tests in the Chemical Analysis of Metals, Ores, and Related Materials

D1193-06(2018)

Standard Specification for Reagent Water

ISO Guide 31

Reference Materials-Contents of Certificates and Labels

ISO/IEC 17025

Requirements for the Competence of Calibration and Test Laboratories

E2857-22

Standard Guide for Validating Analytical Methods

ISO Guide 34

General Requirements for the Competence of Reference Material Producers