超碰自拍97_麻豆网站在线_日韩激情在线视频_99热免费_精品小视频在线观看_亚洲一区二区观看

標準品/甲醇中1,3-丁二烯

  • 型   號:91509b
  • 類   別:標準品
  • 價   格:279

標準品/甲醇中1,3-丁二烯
產品編號:91509b
CAS號:106-99-0
規格:1mL
品牌:TMstandard
標準值:1000μg/mL

分享到:

資料下載

甲醇中1,3-丁二烯

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 17025ISO 17034 and a registered quality management system ISO 9001.

Product Name(產品名稱) 1,3-Butadiene in Methanol,1000μg/mL(甲醇中1,3-丁二烯)
Part Number(產品編號)91509b
 
Lot Number(產品批號)-
 
CAS No.:106-99-0
 
Mol. Formula(分子式)C4H6
 
Mol. Weight(分子量)54.09_______________________________________
 
Storage Temp(存儲條件)(-18±5)℃,Keep in the shade
(-18±5)℃冷凍,置于陰涼處
QC Test Results
ItemTest Results


Analysis method(分析方法)GC/FID


Concentration(濃度)1000μg/mL


Relative Expanded Uncertainty(k=2)(相對擴展不確定度)2%


Expiry Date(失效日期)2028-Sep-24


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.


壇墨質檢
  • 電話

    4008-099-669

    手機

    15806127965

在線客服
主站蜘蛛池模板: 激情四射av | 97视频在线观看免费 | 欧美日本中文字幕 | 超碰免费人人 | 久久免费公开视频 | 国产精品九九 | 秋霞成人av| 美国一级黄色录像 | 欧美久久久| 视色,视色影院,视色影库,视色网 | 少妇在线视频 | 亚洲v国产v欧美v久久久久久 | www久久| 18流白浆 | 98av| 毛片大全免费 | 国产精品久久久久久亚洲影视 | 亚洲精品免费在线观看 | 91麻豆精品在线观看 | 亚洲三级免费 | 99在线免费观看视频 | 成人免费网站在线观看 | 亚洲深夜视频 | 久久中文字幕视频 | 久久久久久久999 | 最新日韩精品 | 一级黄色大片免费观看 | 亚洲五月婷 | 国产一区二区不卡在线 | 骚婷婷 | 羞羞网站入口 | 91视频二区 | 亚洲人成人一区二区在线观看 | 欧美色图自拍 | 中文字幕自拍 | 国产成人资源 | 国产精品成人在线 | 日韩在线视频网址 | 亚洲美女视频在线观看 | 午夜精品av | 18深夜在线观看免费视频 |