UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

ASTM International - ASTM E172-90(1999)

Practice for Describing and Specifying the Excitation Source in Emission Spectrochemical Analysis (Withdrawn 2001)

inactive
Buy Now
Organization: ASTM International
Publication Date: 10 November 1999
Status: inactive
Page Count: 4
ICS Code (Physicochemical methods of analysis): 71.040.50
scope:

1.1 This practice provides for the description of the various parameters of sources used to excite the spectra in optical emission spectrochemical analysis. Recent research on sampling and excitation of metals has shown that the critical parameter to control is the current through the specimen and circuit although the actual mechanism of sampling is unknown. A specific current can be achieved by several combinations of capacitance, voltage, resistance, and inductance, depending on the values for all four. A practice consisting of component values only is insufficient to properly describe an excitation source.

1.2 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.

Document History

ASTM E172-90(1999)
November 10, 1999
Practice for Describing and Specifying the Excitation Source in Emission Spectrochemical Analysis (Withdrawn 2001)
1.1 This practice provides for the description of the various parameters of sources used to excite the spectra in optical emission spectrochemical analysis. Recent research on sampling and excitation...
Advertisement