日韩综合在线I91福利社在线观看I最新国产精品一区I国产性猛交╳XXX乱大交Iwww.91爱爱.comIav色播I欧美一级视频I美女网站在线免费观看I777欧美视频

標(biāo)準(zhǔn)品/苯磺酸乙酯

標(biāo)準(zhǔn)品/苯磺酸乙酯
產(chǎn)品編號(hào):709770-10mg
CAS號(hào):515-46-8
規(guī)格:10mg
有效期:2026-11-15
品牌:TMstandard
標(biāo)準(zhǔn)值:99.9%

分享到:

資料下載

苯磺酸乙酯

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) Ethyl Benzenesulfonate(苯磺酸乙酯)
Product Code(產(chǎn)品編號(hào))709770-10mg
 
Lot Number(產(chǎn)品批號(hào))-
 
CAS No.515-46-8
 
Mol. Weight(分子量)186.23
 
Mol. Formula(分子式)C8H10O3S
 
Melting Point(熔點(diǎn))N/A
 
Expiry Date(失效日期)2026-Nov-15
 
Boiling point(沸點(diǎn))N/A
 
Appearance(外觀)Colorless Clear Liquid
(無色透明液體)__
 
Storage Temp(存儲(chǔ)條件)(2~8)℃,Keep in the shade
冷藏(2~8)℃,置于陰涼處
C E R T I F I E D
Purity
99.9%
 
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)

    15806127965

在線客服
主站蜘蛛池模板: 小雪婷性欢爱全文阅读 | 四川少妇xxxx内谢欧美 | 麻豆成人精品国产免费 | 亚洲人午夜精品 | 久久精品视频3 | 欧美第一夜 | 日韩欧美有码 | 黑人上司与人妻激烈中文字幕 | 国产精品6 | 美一女一无一伦一性一交 | 狠狠色成人一区二区三区 | 白嫩少妇和二男三p爽的大声呻吟 | 成人资源站 | 婷婷在线综合 | 曰本无码不卡高清av一二 | 992tv成人国产福利在线观看 | 人妻少妇偷人无码视频 | 狠狠色 综合色区 | 人人妻人人澡人人爽人人精品浪潮 | 东京热无码国产精品 | 欧美xxxx视频 | 99久久精品国产系列 | 久成人免费精品xxx 欧美激情网 | 欧美亚洲精品在线 | 中字幕久久久人妻熟女 | 日韩精品中文字幕一区 | 免费看男女做羞羞的事网站 | 亚洲精品无码一区二区三区四虎 | www.五月天com| 特大黑人娇小亚洲女 | 久久亚洲精品无码av红樱桃 | 免费av在线网址 | 国产女人高潮叫床视频 | 深爱婷婷网 | 99久久99久久免费精品小说 | 精品人妻系列无码天堂 | 免费在线看a | 国产精品亚洲成在人线 | 成人免费福利视频 | 超碰aⅴ人人做人人爽欧美 99国产精品久久久久久久久久 | 五月婷香蕉久色在线看 | 精品视频在线看 | 天海翼激烈高潮到腰振不止 | 国产精品毛片无码 | 啪啪在线视频 | 奶大臀圆magnet少妇 | 华人av在线| 日本a v网站 | 成人快色| 91精品视频在线免费观看 | 国产成人精品999在线观看 | 成人做爰高潮片免费视频 | 黑巨人与欧美精品一区 | 青青草99 | 国产91免费看 | 无码夫の前で人妻を犯す中字幕 | 99久久久无码国产精品aaa | 国产亚洲产品影市在线产品 | 伊人久久大香线蕉综合5g | 五月天激情社区 | 三级免费黄录像 | 色女人av| 国产精品福利一区二区 | 色婷婷综合和线在线 | 日日噜夜夜爽精品一区 | 人妻在卧室被老板疯狂进入国产 | 亚洲国产成人在人网站天堂 | 精品无码中文视频在线观看 | 少妇啊灬啊别停灬用力啊免费视频 | 乱淫av | 久久久久国产精品人妻aⅴ网站 | 涩涩涩涩爱网站 | 92精品国产自产在线观看481页 | 98色婷婷在线 | 亚洲欧美一区二区在线观看 | 国产乱人伦偷精品视频下 | 国产初高中生视频在线观看 | av基地| 日本一本免费一二区 | 色狠狠久久av五月综合 | 日韩大片免费观看视频播放 | 久久国产激情视频 | 亚洲精品久久久久久不卡精品小说 | 婷婷中文在线 | 亚洲国产a∨无码中文777 | 色综合伊人丁香五月桃花婷婷 | 国产成人片一区在线观看 | 黑人操亚洲女 | 真实国产乱子伦对白在线播放 | 五月婷之久久综合丝袜美腿 | 日本肥老熟hd | 久啪视频 | 亚洲熟女av乱码在线观看漫画 | av免费提供 | 欧美xxxx精品另类 | 91丝袜国产在线播放 | 男男成人高潮片免费网站 | 黄色xxxxxx| 毛片在线免费视频 |