The Gas Professionals
For Laboratories
Primary Standard
The Gas Professionals
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:
Highest purity components
Evaluation of component chemical interaction
Considering all potential error sources
OIML Class 2 mass pieces
Uncertainty calculation according to EAL-R2
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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