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标准品/水中甲醛

型号：93167b
类别：标准品
价格：80

标准品/水中甲醛
产品编号:93167b
CAS号:50-00-0
规格:1mL
有效期:2026-03-27
品牌:TMstandard
标准值:1000μg/mL

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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(产品名称) Formaldehyde in Water,1000μg/mL(水中甲醛)

Part Number(产品编号)93167b

Lot Number(产品批号)-

CAS No.50-00-0

Mol. Formula(分子式)CH2O

Mol. Weight(分子量)30.03___________________________________

Storage Temp(存储条件)(2-8)℃,Keep in the shade
(2~8)℃冷藏，置于阴凉处

Transportation(运输条件)Normal temperature transportation(常温运输)

QC Test Results
Item	Test Results
Analysis method(分析方法)	GC/FID
Concentration(浓度)	1000μg/mL
Relative Expanded Uncertainty(k=2)(相对扩展不确定度)	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.