標準品/二硫化碳中甲苯

型號：91468E
類別：標準物質
價格：600

標準品/二硫化碳中甲苯
產品編號:91468E
CAS號:108-88-3
規格:1mL
有效期:2025-07-10
品牌:TMstandard
標準值:500mg/mL

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二硫化碳中甲苯

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) Toluene in Carbon disulfide,500mg/mL(二硫化碳中甲苯)

Part Number(產品編號)91468E

Lot Number(產品批號)-

CAS .108-88-3

Mol. Formula(分子式)C7H8

Mol. Weight(分子量)92.14_________________________________________

Storage Temp(存儲條件)Normal temperature,Keep in the shade
常溫，置于陰涼處

Transportation(運輸條件)Normal temperature transportation(常溫運輸)

QC Test Results
Item	Test Results
Analysis method(分析方法)	GC/FID
Concentration(濃度)	500mg/mL
Relative Expanded Uncertainty(k=2)(相對擴展不確定度)	0.5%
Expiry Date(失效日期)	2025-Jul-10

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.