
DYOS Tool

Pure Elements Group

From the standards library of the SPI Supplies and the C. M. Taylor Company

# AS4390-AB

Tungsten

W

Element	Wt %
W	99.95

Cylinders 1.9mm diam 1.9mm high

Polished Tungsten in T100-52 mount

Name	Description	SPI #	Each
Tungsten	SPI Supplies® Individual Mounted Microanalysis Standard Item	AS4390-AB	$
Tungsten	SPI Supplies® Individual Loose Microanalysis Standard Item	AS4395-AB	$

# AS0420-AB

Tungsten

Alternate - either version of this item may be used in our Off-The-Shelf Standards

W

Element	Wt %
W	99.95

polished W wire in 02751-AB mount
Source: wire- Alfa Aesar, USA

At the right is a reflected light micrograph of polished, carbon coated tungsten wire in a 02751-AB Off-The-Shelf mount. The identifying etched label, which is a feature of our standards, is invaluable for navigating in an electron beam instrument.

Name	Description	SPI #	Each
Tungsten	SPI Supplies® Individual Mounted Microanalysis Standard Item	AS0420-AB	$
Tungsten	SPI Supplies® Individual Loose Microanalysis Standard Item	AS0425-AB	$

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