丰满少妇被强入在线观看,日本一道一区二区免费看,国产精品玖玖,老司机看片午夜久久福利

標(biāo)準(zhǔn)品/2,4-D乙酯

標(biāo)準(zhǔn)品/2,4-D乙酯
產(chǎn)品編號(hào):721821-250mg
CAS號(hào):533-23-3
規(guī)格:250mg
品牌:TMstandard
標(biāo)準(zhǔn)值:見證書

分享到:

資料下載

2,4-D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) 2,4-D-Ethyl Ester(2,4-D乙酯)
Product Code(產(chǎn)品編號(hào))721821-250mg
 
Lot Number(產(chǎn)品批號(hào))-
 
CAS No.533-23-3
 
Mol. Weight(分子量)249.09
 
Mol. Formula(分子式)C10H10Cl2O3
 
Melting Point(熔點(diǎn))N/A
 
Expiry Date(失效日期)-
 
Boiling point(沸點(diǎn))N/A
 
Appearance(外觀)Colorless Clear Liquid
(無色液體)______
 
Storage Temp(存儲(chǔ)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
96.6%
 
C E R T I F I E D
Expanded Uncertainty (U)
0.3%
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

HPLC/DAD

Batch Information

Water Content by Karl-Fischer Titration: <0.10%

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
清纯校花粉嫩粗大进出好爽| 国产精品性色av综合网| 操逼操逼操逼操逼黄片儿| 超97在线免费观看视频| 水蜜桃AV综合网站浪潮| 国产无遮挡又黄又大又爽| 国产无遮挡免费吸乳视频| 亚洲一区精品中文字幕不卡| 91麻豆精品国产自产在线| 一边吃奶一边做爰| 欧美一级欧美成人怡红院| 午夜男人女人爽爽爽视频| 大机巴日屄视频| 毛片免费视频aaaaa| 嗯~不要插进来好深视频| 99久在线观看| 国产一区三区三区久久久久| 天天操天天射天天插到底| 骚B流水了要大肉棒视频| 亚洲精品无码mv在线观| 外国的大鸡巴操美女骚逼| 中国女神被大鸡巴操骚逼| 午夜三级A视频在线观看| 少爷湿润粗大跪趴含bl| 在线看男女AV免费网址| 鸡巴插菊花进去免费观看| 日本美人妻中文字幕在线| 阿,好爽,好厉害,视频| 男人插女人骚视频998| 乱人伦视频中文字幕免费| 西西大胆人胆全棵艺术照| 国产欧美日韩在线一区二区| 国产明星xxxx色视频| 精品无码欧美一区二区三区不卡| 白领人妻系列第26部分阅读| 日逼免费大网站| 特一级亚洲黄色电影天堂| 黄色av网站在线免费观看| 波多野结衣无码Av在线| 欧美精品免费不卡一区二区| 欧美一区二区三区日韩色|