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標準品/甲醇中乙醛
產品編號：91524b
CAS號：75-07-0
規格：1mL
有效期：2025-04-08
品牌：TMstandard
標準值：2000μg/mL
產品簡介
詳細介紹
甲醇中乙醛
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(產品名稱) Acetaldehyde in Methanol,2000μg/mL(甲醇中乙醛)
Part Number(產品編號)91524b
Lot Number(產品批號)-
CAS No.75-07-0
Mol. Formula(分子式)C2H4O
Mol. Weight(分子量)44.05_______________________
Storage Temp(存儲條件)(-18±5)℃,dark
(-18±5)℃，冷凍避光
(-18±5)℃，冷凍避光
Transportation(運輸條件)Biological ice bag transportation(生物冰袋運輸)
| QC Test Results | ||||
| Item | Test Results | |||
| Analysis method(分析方法) | GC/FID | |||
| Concentration(濃度) | 2000μg/mL | |||
| Relative Expanded Uncertainty(k=2)(相對擴展不確定度) | 2% | |||
| Expiry Date(失效日期) | 2025-Apr-08 | |||
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.