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(biāo)準(zhǔn)品/4-乙基愈創(chuàng)木酚

標(biāo)準(zhǔn)品/4-乙基愈創(chuàng)木酚
產(chǎn)品編號(hào):716870-100mg
CAS號(hào):2785-89-9
規(guī)格:100mg
有效期:2031-06-10
品牌:TMstandard
標(biāo)準(zhǔn)值:99.8%

分享到:

資料下載

4-乙基愈創(chuàng)木酚

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(chǎn)品名稱) 4-Ethylguaiacol(4-乙基愈創(chuàng)木酚)
Product Code(產(chǎn)品編號(hào))716870-100mg
 
Lot Number(產(chǎn)品批號(hào))-
 
CAS No.2785-89-9
 
Mol. Weight(分子量)152.19
 
Mol. Formula(分子式)C9H12O2
 
Melting Point(熔點(diǎn))N/A
 
Expiry Date(失效日期)2031-Jun-10
 
Boiling point(沸點(diǎn))N/A
 
Appearance(外觀)Liquid
(液體)______________________
 
Storage Temp(存儲(chǔ)條件)Normal temperature,Keep in the shade
常溫,置于陰涼處
 
Transportation(運(yùn)輸條件)Normal temperature transportation(常溫運(yùn)輸)
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


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: 成人午夜视频免费看欧美 | 99热精品在线 | 色在线免费视频 | 麻豆网站在线免费观看 | 午夜日本一区二区三区 | 大伊香蕉精品一区视频在线 | 国内精品久久久久影院免费 | 五月婷婷亚洲 | 日本不卡视频免费 | aaa毛片手机在线现看 | 幻女与人xx00毛片免费 | 欧美亚洲国产日韩综合在线播放 | 欧美在线免费播放 | se色成人亚洲综合 | 成人人观看的免费毛片 | 182tv成人网182tv香蕉 | 国产高清在线精品 | 中文字幕一区在线播放 | 秋霞看片亚洲先锋一区 | 在线播放色 | 久久福利 | 黄 色 免 费 网站在线观看 | 亚洲国产一区在线观看 | 在线看欧美三级中文经典 | 亚洲h视频在线观看 | 一级片免费网站 | 欧美区亚洲区 | 自拍偷拍国语对白 | 国产精品福利一区二区亚瑟 | 色丁香六月| 麻豆天美精东91制片厂 | 最好韩国日本高清免费 | 在线看免费观看韩国特黄一级 | 国产成人久久综合热 | 欧美黄色免费 | 在线观看免费精品国产 | 欧美日韩色视频在线观看 | 四虎影院免费在线 | 91热久久免费频精品99欧美 | 亚洲动漫第一页 | 欧美一区精品二区三区 |