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Primary Standard
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Primary Standard

Primary Standard for Laboratories

Highest accuracy under an ISO 9001 quality system.

High accuracy Gravimetric Standard for laboratories and research

Produced gravimetrically on a highly sensitive, accurate analytical weighing device.

Highest accuracy possible
For non-reactive, stable
and inert components
According to strict rules and procedures as described in ISO norm 6142:
X
Highest purity components
X
Evaluation of component chemical interaction
X
Considering all potential error sources
X
OIML Class 2 mass pieces
X
Uncertainty calculation according to EAL-R2
X
Analytical QC validation protocol

Primary Standard Specifications in relative %

Traceability of a Certified Gas Standard

Slide to learn about Nippon Gases over time

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