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(biāo)準(zhǔn)品/1,1'-聯(lián)萘

標(biāo)準(zhǔn)品/1,1'-聯(lián)萘
產(chǎn)品編號(hào):72400
CAS號(hào):604-53-5
規(guī)格:10mg
有效期:2025-11-11
品牌:TMstandard
標(biāo)準(zhǔn)值:99.8%

分享到:

資料下載

1,1'-聯(lián)萘

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 1,1'-Binaphthyl
Product Code72400
 
Lot Number-
 
CAS No.604-53-5
 
Mol. Weight254.33
 
Mol. FormulaC20H14
 
Melting Point154℃(dec.)
 
Expiry Date2025-Nov-11
 
Boiling pointN/A
 
AppearanceWhite to Off-White Solid__
 
Storage Temp(20±5)℃,Keep in the shade
C E R T I F I E D
Purity
99.8%
 
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.


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: 男人天堂网站在线 | 精品国产欧美一区二区三区成人 | 国产精品夜色视频一级区 | japanese在线看 | 操老逼视频 | 亚洲高清国产拍精品动图 | 国产在线麻豆波多野结衣 | 秀婷程仪公欲息肉婷在线观看 | 五月天网站 | 国产亚洲欧美日韩综合综合二区 | 日本天堂影院在线播放 | 男女被爆动漫羞羞动漫 | 亚洲色图中文字幕 | aaa大片 | 99久久精品国语对白 | 成人性色生活片免费网 | 美女gif跪趴式抽搐动态图 | 国产在线观看精品香蕉v区 国产在线观看a | yy8090韩国日本三理论免费 | 免费视频一级片 | 日本 在线播放 | 免费精品在线视频 | 天天曰天天干 | 国内亚州视频在线观看 | 亚洲精品中文 | 肉宠文很肉到处做1v1 | 男人午夜视频在线观看 | 精品四虎国产在免费观看 | 亚洲va在线va天堂成人 | 黑人性xxxⅹxxbbbbb | 国产精品九九热 | 日本三级免费网站 | 亚洲国产精品第一页 | 四虎影视在线永久免费观看 | 国产成人在线免费观看 | 嫩草影院久久99 | 亚洲国产在线观看免费视频 | 精品成人一区二区三区免费视频 | 亚洲AV无码国产精品色午夜情 | 视频二区 素人 欧美 日韩 | 欧美多gayxxxx|