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/4-溴-2-氯ben酚

標準品/4-溴-2-氯ben酚
產品編號:72561
CAS號:3964-56-5
規格:50mg
有效期:2027-01-16
品牌:TMstandard
標準值:99.1%

分享到:

資料下載

4-溴-2-氯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(產品名稱) 4-Bromo-2-chlorophenol(4-溴-2-氯ben酚)
Product Code(產品編號)72561
 
Lot Number(產品批號)-
 
CAS No.3964-56-5
 
Mol. Weight(分子量)207.46
 
Mol. Formula(分子式)C6H4BrClO
 
Melting Point(熔點)47-49℃(dec.)
 
Expiry Date(失效日期)2027-Jan-16
 
Boiling point(沸點)232-235℃(dec.)
 
Appearance(外觀)Solid
(固體)_____________________
 
Storage Temp(存儲條件)(-18±5)℃,Keep in the shade
(-18±5)℃冷凍,置于陰涼處
C E R T I F I E D
Purity
99.1%
 
C E R T I F I E D
Expanded Uncertainty (U)
1.0%
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/FID


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.


上一篇 : 70352標準品/紐甜    下一篇 :  72547標準品/安妥
壇墨質檢
  • 電話

    4008-099-669

    手機

    18168802993

在線客服
主站蜘蛛池模板: 中文字幕在线观看国产 | 国产免费一级在线观看 | 一区二区三区在线 | 欧美日韩一区二区在线观看视频 | 高清亚洲综合色成在线播放放 | 亚洲视频在线观看免费 | 欧美成人专区 | 国产极品粉嫩福利在线观看 | 国产丰满眼镜女在线观看 | 国产成人免费网站在线观看 | 五月婷婷综合网 | 成年女人午夜毛片免费看 | 一区二区三区四区国产精品 | 天天操中文字幕 | 蜜臀麻豆 | 国产传媒一区二区三区呀 | 99久久综合精品免费 | 日韩欧美~中文字幕 | 日韩欧美中文在线 | 久草热视频 | 在线观看不卡一区 | 高清视频一区二区三区 | 国产成人亚洲综合欧美一部 | 免费观看一级特黄三大片视频 | 国产又粗又爽又大又长免费视 | 97国内免费久久久久久久久久 | 亚洲羞羞视频 | 圣爱天堂网站亚洲欧美 | 青青久操视频 | 国产成人精品免费视频动漫 | 国产欧美日韩免费一区二区 | 国产精品久草 | 国产91小视频 | 久久国产精品二区99 | 日日摸夜夜摸狠狠摸日日碰夜夜做 | 99精品99| 香蕉依依精品视频在线播放 | 中文字幕在线看日本大片 | 亚洲国产精品欧美综合 | 亚洲综合在线网 | 黄页视频免费在线观看 |