Glasses Group

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

# AS7220-AB

K-0489 Glass

National Bureau of Standards origin with Certificate of Analysis

Now the National Institute of Standards and Technology, NIST, Gaithersburg, MD USA
ElementWt % OxideWt %
Li 0.001Li2O 0.002
B 0.06B2O3 0.20
O 31.50
Al 0.15Al2O3 0.29
Si 21.86SiO2 46.76
Ti 0.28TiO2 0.46
Fe 0.32Fe2O3 0.46
Zn 2.99ZnO 3.72
Zr 0.52ZrO2 0.70
Ba 39.30BaO 43.88
Ce 0.80CeO2 0.98
Ta 1.03Ta2O5 1.26
Pb 1.19PbO 1.28

Sum100.0 Sum100.0

2mm x 2mm x 2mm cubes
Si-Zn-Ba doped

Name Description SPI # Each
K-0489 Glass SPI SuppliesŪ Individual Mounted Microanalysis Standard Item AS7220-AB $
K-0489 Glass SPI SuppliesŪ Individual Loose Microanalysis Standard Item AS7225-AB $

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