久久5-久久4-久久3-久久2019-一个人hd高清在线观看免费一-一个人hd高清在线观看免费

標準品/2-羥基辛酸

  • 型   號:77900
  • 類   別:標準品
  • 價   格:160

標準品/2-羥基辛酸
產(chǎn)品編號:77900
CAS號:617-73-2
規(guī)格:100mg
有效期:2028-01-28
品牌:TMstandard
標準值:96.9%

分享到:

資料下載

2-羥基辛酸

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(chǎn)品名稱) 2-Hydroxy-n-octanoic Acid(2-羥基辛酸)
Product Code(產(chǎn)品編號)77900
 
Lot Number(產(chǎn)品批號)-
 
CAS No.617-73-2
 
Mol. Weight(分子量)160.21
 
Mol. Formula(分子式)C8H16O3
 
Melting Point(熔點)68-70℃(dec.)
 
Expiry Date(失效日期)2028-Jan-28
 
Boiling point(沸點)N/A
 
Appearance(外觀)Solid
(固體)_______________________
 
Storage Temp(存儲條件)Normal temperature,Keep in the shade
常溫,置于陰涼處
C E R T I F I E D
Purity
96.9%
 
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(zhì)檢
  • 電話

    4008-099-669

    手機

    18168802993

在線客服
主站蜘蛛池模板: 麻豆系列 在线视频 | 亚洲精品一级毛片 | 欧美大片va欧美在线播放 | 天天综合色天天综合 | 2021国产精品视频 | 中文字幕在线手机播放 | 欧美成人免费观看国产 | 国内自拍成人网在线视频 | 欧美成人一区亚洲一区 | 欧美性受一区二区三区 | 在线视频这里只有精品 | 妈妈的朋友伦理在线观看 | 日韩欧美一区二区三区视频 | 黄色视屏在线 | 久久久麻豆 | 午夜精品久久久久久91 | 亚洲十八 | 欧美视频a | 动漫免费看的网站 | 在线亚洲成人 | 日韩新片在线观看网 | 日本欧美一区二区三区 | 色花堂国产精品第一页 | 毛片一级在线 | 欧美手机在线观看 | 国产99久久久国产精品小说 | 亚洲第一区视频 | 亚洲特级aaaaaa毛片 | 四虎影院永久免费 | 麻豆 一区 精品 在线 | 午夜视频免费在线播放 | 91精品国产综合成人 | 日韩亚洲欧美在线 | 99视频在线看观免费 | 若妻在线观看 | 天天做天天玩天天爽天天 | 成人看片黄a在线观看 | 伊人色综合久久天天网 | 亚洲欧美字幕 | 日本大片成人免费播放 | 上游电视剧在线观看免费影视大全 |