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/對三聯(lián)苯

  • 型   號:72215-10mg
  • 類   別:標準品
  • 價   格:80

標準品/對三聯(lián)苯
產(chǎn)品編號:72215-10mg
CAS號:92-94-4
規(guī)格:10mg
有效期:2026-10-25
品牌:TMstandard
標準值:99.7%

分享到:

資料下載

對三聯(lián)苯

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) p-Terphenyl(對三聯(lián)苯)
Product Code(產(chǎn)品編號)72215-10mg
 
Lot Number(產(chǎn)品批號)-
 
CAS No.92-94-4
 
Mol. Weight(分子量)230.31
 
Mol. Formula(分子式)C18H14
 
Melting Point(熔點)212-213℃(dec.)
 
Expiry Date(失效日期)2026-Oct-25
 
Boiling point(沸點)N/A
 
Appearance(外觀)White to Off-White Solid
(白色固體)____
 
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
99.7%
 
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: 欧美人曾交 | 国色天香社区视频免费高清在线观看 | 日韩欧美一区黑人vs日本人 | 四虎影视4hutv最新地址在线 | 国产成人久久精品推最新 | 成人久久久 | 久久学生精品国产自在拍 | 第一国内永久免费福利视频 | 爱爱一级视频 | 午夜一级毛片看看 | 亚洲一卡2卡4卡5卡6卡残暴在线 | 国产亚洲高清国产拍精品 | 91精品国产高清久久久久久io | 狠狠婷婷综合缴情亚洲 | 日本欧美大码a在线视频播放 | 国内自拍2019 | 1717she精品视频在线观看 | 免费精品在线 | 精品精品国产yyy5857香蕉 | 欧美有码| 紧身牛仔裤美女被啪啪久久网 | 午夜影院和视费x看 | 国产精品成人免费福利 | www毛片| 99日影院在线播放 | 第一国内永久免费福利视频 | 免费看隐私男生网站 | 日本成熟老妇xxxx | 欧美2区| 亚洲午夜久久久久久91 | 国产成人免费片在线观看 | 新影音先锋男人色资源网 | 国产精品福利 | blackedhd 18sex| 国产成人在线播放视频 | 日本加勒比在线播放 | 国产真实伦对白在线播放 | 公交车强校花系列小说 | 36美女厕所撒尿全过程 | 男女全黄h全肉细节文 | 亚洲欧洲综合 |