标准品/甲醇中19种芳香烃类混标/DB12 524-2020附录H-2组||cas:|西域试剂

标准品/甲醇中19种芳香烃类混标/DB12 524-2020附录H-2组，1000μg/mL

产品编号西域质检-TM22505

Cas号

纯度/浓度1000μg/mL

储存温度冷藏

规格￥2,280.00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19种芳香烃类混标/DB12 524-2020附录H-2组
英文名称：
CAS NO：
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) 19 Aromatic Hydrocarbons Mix in Methanol,1000μg/mL

Part Number(产品编号) 81252a

Lot Number(产品批号) 21060774

Expiry Date(失效日期) 2023-Jun-27_____________

Storage(存储条件) (2~8)℃,Keep in the shade

CERTIFIED
Component No. (组分数)	Peak Sequence (出峰顺序)	Component (组分)	CAS No.	Concentration (μg/mL) (浓度)	Uncertainty (%)
1	1	Benzene	71-43-2	1000	2
2	2	Toluene	108-88-3	1000	2
3	3	Ethylbenzene	100-41-4	1000	2
4	4	p-Xylene	106-42-3	1000	2
5	5	m-Xylene	108-38-3	1000	2
6	6	Isopropylbenzene	98-82-8	1000	2
7	7	o-xylene	95-47-6	1000	2
8	8	Styrene	100-42-5	1000	2
9	9	4-Ethyltoluene	622-96-8	1000	2
10	9	1-Ethyl-3-methylbenzene	620-14-4	1000	2
11	10	1,3,5-Trimethylbenzene	108-67-8	1000	2
12	11	Propylbenzene	103-65-1	1000	2
13	12	2-Ethyltoluene	611-14-3	1000	2
14	13	1,2,4-Trimethylbenzene	95-63-6	1000	2
15	14	1,3-Diethylbenzene	141-93-5	1000	2
16	15	1,4-Diethylbenzene	105-05-5	1000	2
17	16	1,2,3-Trimethylbenzene	526-73-8	1000	2
18	17	1,2,3,4-Tetramethylbenzene	488-23-3	1000	2
19	18	Naphthalene	91-20-3	1000	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
2021-Jun-28		RM Release