天堂网2016-天堂网2014-天堂网. www在线资源-天堂网-天堂婷婷-天堂素人在线

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

    18168802993

在線客服
主站蜘蛛池模板: 99久久精品国产免看国产一区 | 日韩免费在线观看 | 精品视频久久久久 | 成人免费播放 | 超逼网 | 国产大神91一区二区三区 | 娇妻与公陈峰姚瑶最新版 | 亚洲精品国产成人7777 | 亚洲 综合 自拍 精品 在线 | 精品欧美小视频在线观看 | 欧美一级视频在线观看 | 精品久久久久久久久免费影院 | 日韩无遮挡大尺度啪啪影片 | 成人精品亚洲人成在线 | 日产精品一二三四区国产 | 亚洲网红精品大秀在线观看 | 无限好资源第一片免费韩国 | 大学第一次基本都没了 | 亚洲 综合 欧美在线 热 | 四虎影院免费在线 | 精品国产91久久久久久久a | a级情欲片在线观看hd | 国产精品女同久久免费观看 | 国产高清视频一区二区 | 日韩欧美中文字幕出 | 亚洲天堂免费看 | 日本一区二区三区国产 | a级情欲片在线观看hd | 色婷婷久久综合中文久久一本` | 欧美做受 | 丝瓜秋葵番茄绿巨人在线观看 | 秒播影视 午夜福利毛片 | 亚洲精品成人 | 教室里老师好紧h | 亚洲不卡视频在线 | 国产成人亚洲综合网站不卡 | 国产91对白在线观看 | 国产剧情一区二区三区 | 天天久久综合网站 | 好大好硬好深好爽想要吃奶 | haodiaose在线精品免费观看 |