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標(biāo)準(zhǔn)品/甲醇中乙醛

型號：91524b
類別：標(biāo)準(zhǔn)品
價(jià) 格：80

標(biāo)準(zhǔn)品/甲醇中乙醛
產(chǎn)品編號：91524b
CAS號：75-07-0
規(guī)格：1mL
有效期：2025-04-08
品牌：TMstandard
標(biāo)準(zhǔn)值：2000μg/mL

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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(chǎn)品名稱) Acetaldehyde in Methanol,2000μg/mL(甲醇中乙醛)

Part Number(產(chǎn)品編號)91524b

Lot Number(產(chǎn)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

Transportation(運(yùn)輸條件)Biological ice bag transportation(生物冰袋運(yùn)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(kuò)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.