NIST2031C
Metal-on-Fused-Silica Neutral Density Filters (250 nm to 635 nm)
NIST®SRM®
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About This Item
Empirical Formula (Hill Notation):
SiO2
CAS Number:
Molecular Weight:
60.08
UNSPSC Code:
41116107
NACRES:
NA.24
Recommended Products
packaging
pkg of 100 g
manufacturer/tradename
NIST®
application(s)
general analytical
storage temp.
15-25°C
InChI
1S/O2Si/c1-3-2
InChI key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
General description
This Standard Reference Material (SRM) is intended for use in the verification of the transmittance and absorbance scales of spectrophotometers in the ultraviolet and visible spectral regions. SRM 2031c is a transfer standard certified using the NIST Materials Measurement Laboratory Transfer Spectrophotometer (MMLTS) with traceability through the NIST second generation High Accuracy Spectrophotometer (HAS II), modeled after the original instrument [2]. A unit consists of three individual neutral-density filters in separate metal holders and one empty filter holder, all stored in a black anodized-aluminum container.
SRM 2031C_cert
SRM 2031C_SDS
SRM 2031C_cert
SRM 2031C_SDS
Other Notes
Please download a current certificate at nist.gov/SRM for current analytes and certified values.
Legal Information
NIST is a registered trademark of National Institute of Standards and Technology
SRM is a registered trademark of National Institute of Standards and Technology
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