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(biāo)準(zhǔn)品/4-氯-3,5-二甲基ben酚

標(biāo)準(zhǔn)品/4-氯-3,5-二甲基ben酚
產(chǎn)品編號(hào):71545
CAS號(hào):88-04-0
規(guī)格:250mg
有效期:2027-09-27
品牌:TMstandard
標(biāo)準(zhǔn)值:99.6%

分享到:

資料下載

4-氯-3,5-二甲基ben酚

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) 4-Chloro-3,5-dimethylphenol(4-氯-3,5-二甲基ben酚)
Product Code(產(chǎn)品編號(hào))71545
 
Lot Number(產(chǎn)品批號(hào))-
 
CAS No.88-04-0
 
Mol. Weight(分子量)156.61
 
Mol. Formula(分子式)C8H9ClO
 
Melting Point(熔點(diǎn))114-116℃(dec.)
 
Expiry Date(失效日期)2027-Sep-27
 
Boiling point(沸點(diǎn))N/A
 
Appearance(外觀)White to Off-White Solid__
 
Storage Temp(存儲(chǔ)條件)(20±5)℃,Keep in the shade
C E R T I F I E D
Purity
99.6%
 
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(jī)

    18168802993

在線客服
主站蜘蛛池模板: 欧美本道 | 欧美在线视频在线观看 | 男女免费高清在线爱做视频 | 亚洲精彩视频在线观看 | 欧美在线香蕉在线现视频 | 日本欧美小视频 | 欧美xxxxx性视频 | 国产一区欧美二区 | 国产在线观看高清精品 | 在线视频第一页 | 青草视频在线观看免费视频 | 四虎1515hh谢com | 国产精品久久久久久久久免费 | 在线免费观看日韩视频 | 四虎国产精品成人永久免费影视 | 欧美激情一二区 | 久久国内免费视频 | 欧美精品1区2区 | 羞羞视频在线免费观看 | 九九热精品在线 | 国产成人毛片毛片久久网 | 欧美高清hd视频免费播放 | 国产91久久精品一区二区 | 欧美国产成人免费观看永久视频 | 寡妇一级a毛片免费播放 | 国产午夜精品久久久久免费视小说 | 四虎永久免费最新在线 | 国产成人在线观看免费网站 | 精品一卡2卡3卡4卡5卡亚洲 | 久国产视频 | 免费国产成人高清在线观看麻豆 | 日韩欧美色视频在线观看 | 久草免费资源视频 | 欧美3p在线观看一区二区三区 | 国产精品v欧美精品v日韩精品 | 一级人做人a爰免费视频 | 亚洲天堂在线观看完整版 | 亚洲综合色视频在线观看 | 天美传媒果冻传媒 | 久久国产精品视频一区 | 欧美在线高清视频 |