甲醇中氯乙烯
This certificate is designed in accordance withISO 17034andISO Guide 31. This reference material (RM) was designed,produced and verified in accordance withISO/IEC 17025,ISO 17034and a registered quality management systemISO 9001.
| QC Test Results | ||||
| Item | Test Results | |||
| Analysis method | GC/MS | |||
| Concentration | 5000μg/mL | |||
| Uncertainty | 1% | |||
| Expiry Date | 2026-Aug-09 | |||
The certified value(s) and uncertainty(ies) are determined in accordance withISO 17034with an 95% confidence level (k=2). Uncertainty is based on the Total Combined Uncertainty, including uncertainties of preparation, purity of neat materials, homogeneity, stability testing.
The balances used for gravimetric measurements are calibrated with weights traceable to the national standards. The calibration of the balances is verified annually by an external accredited calibration service. This analysis method has been verified using an approach consistent withISO 17034:2016&ISO 17025:2017.
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