This certificate is designed in accordance with ISO 17034 and ISO Guide 31. This reference material (RM) was designed,produced and verified in accordance with ISO/IEC 17025, ISO 17034 and a registered quality management system ISO 9001.
Storage Temp(存储条件)Normal temperature,Keep in the shade
常温，置于阴凉处
Transportation(运输条件)Normal temperature transportation(常温运输)
C E R T I F I E D
Purity
99.8%
C E R T I F I E D
Expanded Uncertainty (U)
0.5%
Uncertainty
The certified value(s) and uncertainty(ies) are determined in accordance with ISO 17034 with an 95% confidence level(k=2). Uncertainty is based on the Total Combined Uncertainty, including uncertainties of characterisation, homogeneity and stability testing. Stability values are based on real evidence opposed to simulation.
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