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/2-乙基正丁酸

標(biāo)準(zhǔn)品/2-乙基正丁酸
產(chǎn)品編號:71625
CAS號:88-09-5
規(guī)格:250mg
有效期:2030-04-01
品牌:TMstandard
標(biāo)準(zhǔn)值:99.9%

分享到:

資料下載

2-乙基正丁酸

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 17025, ISO 17034 and a registered quality management system ISO 9001.

Product Name(產(chǎn)品名稱) 2-Ethylbutyric Acid(2-乙基正丁酸)
Product Code(產(chǎn)品編號)71625
Lot Number(產(chǎn)品批號)-
CAS No.88-09-5
Mol. Weight(分子量)116.16
Mol. Formula(分子式)C6H12O2
Melting Point(熔點)N/A
Expiry Date(失效日期)2030-Apr-01
Boiling point(沸點)194℃(dec.)
Appearance(外觀)Liquid
(液體)______________________
Storage Temp(存儲條件)Normal temperature,Keep in the shade
常溫,置于陰涼處
Transportation(運輸條件)Normal temperature transportation(常溫運輸)
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

    18168802993

在線客服
主站蜘蛛池模板: 成年人免费观看视频网站| 天天亚洲综合| 国产愉拍| 欧美精品v欧洲高清| 五月天黄网| 国内精品久久久久影院中国 | 性奴公司 警花| 青青国产在线观看| 国产在线极品| 亚洲激情欧美| 美女在尿口隐私视频| 大伊香蕉精品二区视频在线| 亚洲国产香蕉视频欧美| 亚洲天堂在线视频观看| 国产精品视频免费一区二区三区| jiuse视频| 热九九精品| 日韩美女强理论片| 99色在线播放| 穆挂英风流艳史小说| 精品免费国产一区二区三区| 欧美日韩国产一区二区三区在线观看 | 男人女人日皮视频| 欧美video丝袜连裤袜bd| 草莓视频丝瓜| 爱操综合| 午夜看片a福利在线观看| 免费导航| 国产另类视频| 国产欧美日韩不卡| 日韩免费| 免费黄色片在线观看| 国产香蕉久久| 国产精品久久久久久岛国| aaa黄色| 高h细节肉爽文办公室| 亚洲六月丁香六月婷婷蜜芽| 西野翔全部作品在线观看| 国内精品伊人久久大香线焦 | 超时空要爱国语完整版在线| 亚洲热在线视频|