精品极品久久久久久,亚洲av永久无码天堂网毛片

參考價(jià)	￥ 220
訂貨量	1件
具體成交價(jià)以合同協(xié)議為準(zhǔn)

產(chǎn)品分類(lèi)品牌分類(lèi)

產(chǎn)品簡(jiǎn)介

CAS	1634-04-4	純度	2000μg/mL
供貨周期	現(xiàn)貨	規(guī)格	1mL
貨號(hào)	91356d	應(yīng)用領(lǐng)域	醫(yī)療衛(wèi)生,環(huán)保,食品/農(nóng)產(chǎn)品,化工,農(nóng)林牧漁

標(biāo)準(zhǔn)品/甲醇中甲基叔丁基醚
產(chǎn)品編號(hào)：91356d
CAS號(hào)：1634-04-4
規(guī)格：1mL
有效期：2025-09-27
品牌：TMstandard
標(biāo)準(zhǔn)值：2000μg/mL

詳細(xì)介紹

甲醇中甲基叔丁基醚

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(chēng)) Methyl-tert-butyl Ether in Methanol,2000μg/mL(甲醇中甲基叔丁基醚)

Part Number(產(chǎn)品編號(hào))91356d

Lot Number(產(chǎn)品批號(hào))-

CAS .1634-04-4

Mol. Formula(分子式)C5H12O

Mol. Weight(分子量)88.15_______________________________________

Storage Temp(存儲(chǔ)條件)(-18±5)℃,Keep in the shade
(-18±5)℃冷凍，置于陰涼處

QC Test Results
Item	Test Results
Analysis method(分析方法)	GC/FID
Concentration(濃度)	2000μg/mL
Relative Expanded Uncertainty(k=2)(相對(duì)擴(kuò)展不確定度)	2%
Expiry Date(失效日期)	2025-Sep-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.