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標準品/水中甲醛
產(chǎn)品編號:93167b
CAS號:50-00-0
規(guī)格:1mL
有效期:2026-03-27
品牌:TMstandard
標準值:1000μg/mL
產(chǎn)品簡介
詳細介紹
水中甲醛
Reference Material
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.
Product Name(產(chǎn)品名稱) Formaldehyde in Water,1000μg/mL(水中甲醛)
Part Number(產(chǎn)品編號)93167b
Lot Number(產(chǎn)品批號)-
CAS No.50-00-0
Mol. Formula(分子式)CH2O
Mol. Weight(分子量)30.03___________________________________
Storage Temp(存儲條件)(2-8)℃,Keep in the shade
(2~8)℃冷藏，置于陰涼處
(2~8)℃冷藏，置于陰涼處
Transportation(運輸條件)Normal temperature transportation(常溫運輸)
| QC Test Results | ||||
| Item | Test Results | |||
| Analysis method(分析方法) | GC/FID | |||
| Concentration(濃度) | 1000μg/mL | |||
| Relative Expanded Uncertainty(k=2)(相對擴展不確定度) | 2% | |||
| Expiry Date(失效日期) | 2026-Mar-27 | |||
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 preparation, purity of neat materials, homogeneity, stability testing.
Traceability
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 with ISO 17034:2016 & ISO 17025:2017.