午夜三级在线_日批在线看_伊人久久久久久久久久久久_日韩插插插_亚洲二区av_亚洲成人av一区二区三区

標準品/2-己酮

  • 型   號:72028
  • 類   別:標準品
  • 價   格:110

標準品/2-己酮
產品編號:72028
CAS號:591-78-6
有效期:2030-04-23
品牌:TMstandard
標準值:99.9%

分享到:

資料下載

2-己酮

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) 2-Hexanone(2-己酮)
Product Code(產品編號)72028
 
Lot Number(產品批號)-
 
CAS No.591-78-6
 
Mol. Weight(分子量)100.16
 
Mol. Formula(分子式)C6H12O
 
Melting Point(熔點)N/A
 
Expiry Date(失效日期)2030-Apr-23
 
Boiling point(沸點)N/A
 
Appearance(外觀)Colorless Clear Liquid
(無色透明液體)____
 
Storage Temp(存儲條件)(20±5)℃,Keep in the shade
常溫(20±5)℃,置于陰涼處
C E R T I F I E D
Purity
99.9%
 
C E R T I F I E D
Expanded Uncertainty (U)
0.5%
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 characterisation, homogeneity and stability testing. Stability values are based on real evidence opposed to simulation.

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.

CERTIFICATE    ONQC    SIGNATURE
-RM Release
Method of Identification

GC


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.

Storage

This reference material meets the specification stated in this certificate until the expiry date, provided it is stored unopened at the recommended temperature here in. If storage after opening is necessary, the RM should be tightly closed and kept from light and moisture.

Hazards

Read Material Safety Data Sheet (MSDS) and understand any potential hazard(s) prior to the use of this product. All chemicals should be considered potentially hazardous in nature and should only be handled by qualified personnel using established good laboratory practices.

Homogeneity

Random replicate samples of the final packaged RM have been analysed to prove homogeneity compliant with ISO 17034.

Instructions for use

It is recommended to use 1 mg as the minimum sample size and if less material is used, to increase the certified uncertainty by a factor of two for half sample and four for a quarter of sample.Visit the support section of our website technology videos and frequently asked questions.


壇墨質檢
  • 電話

    4008-099-669

    手機

    15806127965

在線客服
主站蜘蛛池模板: 国产精品第六页 | 亚洲黄色在线观看 | 国产永久免费观看 | 久久色在线 | 99re免费视频 | 日本91在线 | 可以看的毛片 | 亚洲影院在线播放 | 久久黄色视屏 | 中文字幕在线资源 | 中文字幕亚洲欧美日韩 | 午夜久久久久久久久久影院 | 亚洲最大激情网 | 国产高清视频在线播放 | 国外黄色片 | 色涩网站 | 亚洲天堂毛片 | a久久久久久 | 韩国jizz| 欧美成人亚洲 | 视频一区在线播放 | 日韩中文视频 | 国产欧美第一页 | 日日狠狠 | 久久天天操 | 污黄视频在线观看 | 国产视频在线一区二区 | 国产精彩视频 | 好吊妞视频在线观看 | 亚洲综合自拍 | 天天躁日日躁狠狠躁av麻豆 | 日韩网站免费观看 | 一区二区不卡 | 亚洲天堂av中文字幕 | 久久一区二区三区四区 | 高潮毛片无遮挡 | 久草福利资源在线 | 中文天堂在线观看 | 国产中文字幕第一页 | 69福利视频 | 全部免费毛片在线播放 |