标准品/甲醇中苯||cas:71-43-2|西域试剂

标准品/甲醇中苯，见详情

产品编号西域质检-TM53603

Cas号71-43-2

纯度/浓度见详情

储存温度常温

规格￥900.00元

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商品信息
详细数据

基本信息

中文名称：标准品/甲醇中苯
英文名称：
CAS NO：71-43-2
分子式：
分子量：

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) Benzene in Methanol,50μg/mL,100μg/mL,200μg/mL,400μg/mL,800μg/mL,1200μg/mL(甲醇中苯)

Part Number(产品编号) 91467A（套标）

、 Lot Number(产品批号) 22120308a

Expiry Date(失效日期) 2025-Jan-05

Storage(存储条件) (20±5)℃,Keep in the shade
常温(20±5)℃,置于阴凉处

Peak
Sequence
(出峰顺序)

CERTIFIED
Component No. (组分数)	Component (组分)	CAS	Concentration (μg/mL) (浓度)	Relative Expanded Uncertainty(%)(k=2) (相对扩展不确定度)
1	1	Benzene (苯)	71-43-2	50	4
				100	3
				200	3
				400	3
				800	3
				1200	2

Intended Use

This RM is intended for use in a laboratory as a calibration and quality control standard or in method development for analytical techniques.

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.

Homogeneity

Random replicate samples of the final packaged RM have been analysed to prove homogeneity consistent with ISO 17034.

Storage

The RM should be stored in the original sealed bottle at the indicated temperature.

CERTIFICATE ON	QC SIGNATURE
2023-Jan-06		RM Release