Product Number: SRM690
This Standard Reference Material (SRM) is in the form of powder (<0.1 mm) for use in checking chemical methods of analysis and in calibration with instrumental methods of analysis. Results are given below and are based on samples that were dired for one h
$255.00
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Product Number: SRM692
This Standard Reference Material (SRM) is in the form of fine powder (<0.1 mm) and is intended primarily for use in checking chemical methods of analysis and in calibration with instrumental methods of analysis. Results are given below are are based on sa
$252.00
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Product Number: SRM693
This material is in the form powder (<0.1 mm) for use in checking chemical methods of analysis and in calibration with instrumental methods of analysis.
$254.00
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Product Number: SRM691
SRM 691 is a finely powdered material (200 mesh) and must be kept in tightly sealed bottle when not in use. Long term (3 years) stability of this SRM has not been rigorously established. NIST will continue to monitor this material and any substantive chan
$359.00
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Product Number: GBW07213
This product is manufactured by the National Research Center for CRMs China.
$164.00
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Product Number: GBW07218A
This product is manufactured by the National Research Center for CRMs China.
$164.00
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