您好, 歡迎來到化工儀器網(wǎng)
9
標(biāo)準(zhǔn)品/二硫化碳中甲苯
產(chǎn)品編號:91468E
CAS號:108-88-3
規(guī)格:1mL
有效期:2025-07-10
品牌:TMstandard
標(biāo)準(zhǔn)值:500mg/mL
產(chǎn)品簡介
詳細(xì)介紹
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(chǎn)品名稱) Toluene in Carbon disulfide,500mg/mL(二硫化碳中甲苯)
Part Number(產(chǎn)品編號)91468E
Lot Number(產(chǎn)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
常溫，置于陰涼處
Transportation(運(yùn)輸條件)Normal temperature transportation(常溫運(yùn)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(kuò)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.