DYOS Tool
Standard Reference Materials (NIST SRMs) Group
From the standards library of the SPI Supplies and the C. M. Taylor Company
# AS9370-AB
SRM1158 INVAR
National Bureau of Standards origin with
Certificate of Analysis
Now the National Institute of Standards and Technology, NIST, Gaithersburg, MD USA
Element
Wt %
C
0.025
Si
0.194
P
0.004
S
0.005
V
0.001
Cr
0.062
Mn
0.468
Fe
63.15
Co
0.008
Ni
36.03
Cu
0.039
Mo
0.010
Sum
100.0
2mm cubes
National Bureau of Standards
Name
Description
SPI #
Each
SRM1158 INVAR
SPI SuppliesŪ Individual Mounted Microanalysis Standard Item
AS9370-AB
$
SRM1158 INVAR
SPI SuppliesŪ Individual Loose Microanalysis Standard Item
AS9375-AB
$
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