ASTM Releases Test for ICP Atomic Emission Spectrometry
August 17, 2009 // Published as a news service by IHS
ASTM International released ASTM E2594 - Test Method for Analysis of Nickel Alloys by Inductively Coupled Plasma Atomic Emission Spectrometry (Performance-Based Method).
Experts said the standard will help users prepare and analyze various nickel-based alloy samples by inductively coupled plasma (ICP) emission spectrometry.
ASTM E2594 will assist users in preparing sample and calibration solutions with validation of analytical parameter selections made for their equipment in order to help them produce results.
The standard was developed by Subcommittee E01.08 on Nickel and Cobalt and High Temperature Alloys, part of ASTM Committee E01 on Analytical Chemistry for Metals, Ores and Related Materials.
"Many laboratories use inductively coupled plasma [ICP] emission spectrometry for routine specification acceptance testing of various alloying and trace elements in nickel-based alloys," said Pat Cole, vice chair of E01.
"There was not an existing ASTM standard test method applicable for this particular test discipline and matrix," he said.
Cole said an issue that Committee E01 dealt with when considering how to approach a test method for ICP analysis is that there are various spectrometer configurations, which necessitated the use of varying sample dilutions and/or analytical parameters such as wavelength.
"The new ASTM test method is performance-based and relies more on the demonstrated quality of the test result than on strict adherence to specific procedural steps," Cole said.
Included in the scope of ASTM E2594 is testing for aluminum, boron, calcium, copper, magnesium, manganese, phosphorous, tantalum, tin, titanium, tungsten, vanadium and zirconium. These elements are specified in many material specifications, according to ASTM.
"Committee E01 will use this test method as a template to approach development of additional ICP analytical standards for other commodity metals," Cole said.
During a recent committee meeting, task groups were formed to address ICP methods for analysis of titanium, aluminum and copper alloys using ASTM E2594 as a template, Cole said.
Laboratories are encouraged to volunteer resources to help with these projects in addition to other Subcommittee E01.08 work on proposed test methods for ICP-mass spectrometric, spark-atomic emission spectrometric and graphite furnace atomic absorption analysis of nickel alloys.
Source: ASTM International.