超碰自拍97_麻豆网站在线_日韩激情在线视频_99热免费_精品小视频在线观看_亚洲一区二区观看

標準品/2,5-二溴聯(lián)苯 PBB 9

標準品/2,5-二溴聯(lián)苯 PBB 9
產(chǎn)品編號:730380-10mg
CAS號:57422-77-2
規(guī)格:10mg
品牌:TMstandard
標準值:見證書

分享到:

資料下載

2,5-二溴聯(lián)苯 PBB 9

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) 2,5-Dibromobiphenyl(2,5-二溴聯(lián)苯 PBB 9)
Product Code(產(chǎn)品編號)730380-10mg
 
Lot Number(產(chǎn)品批號)-
 
CAS No.57422-77-2
 
Mol. Weight(分子量)312.00
 
Mol. Formula(分子式)C12H8Br2
 
Melting Point(熔點)N/A
 
Expiry Date(失效日期)-
 
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
99.2%
 
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/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.

以上信息僅供參考,請以實物批次為準!


壇墨質(zhì)檢
  • 電話

    4008-099-669

    手機

    15806127965

在線客服
主站蜘蛛池模板: 亚洲精品第二页 | 天天操天天爽天天干 | xxx日本| 99热这里只有精品5 www.四虎com | 91水蜜桃 | 99久 | 日本高清视频一区二区 | 国产精品一区久久久 | 懂色av一区二区三区四区五区 | 一级黄色性生活片 | 肉大捧一出免费观看网站在线播放 | 国语一区二区 | 国产黄色网页 | 亚洲精品999| 99久久久精品免费观看国产 | 黑人操日本 | 日韩在线综合 | 香蕉茄子视频 | 欧美日韩一区三区 | 在线欧美成人 | 在线欧美一区 | 爱爱综合社区 | 毛片av免费看| 国产精品一级二级 | 欧美日本中文字幕 | 国产成人免费观看 | 香蕉视频首页 | 51av在线| 国内视频一区 | 亚洲一级大片 | 国产精品成人网 | 日韩一区二区久久 | 男人天堂你懂的 | 亚洲天堂黄色片 | 国产精品久久影视 | 98久久| 热99视频| 91亚洲国产成人精品一区二区三 | 久久超碰在线 | 黄色污网站在线观看 | 国产在线成人 |