国产一级毛片高清视频在线-国产一级久久久久久毛片-国产一级精品视频-国产一级黄色影片-亚洲第一区二区快射影院-亚洲第一区第二区

標(biāo)準(zhǔn)品/木糖

標(biāo)準(zhǔn)品/木糖
產(chǎn)品編號:71184
CAS號:58-86-6
規(guī)格:250mg
有效期:2028-04-24
品牌:TMstandard
標(biāo)準(zhǔn)值:99.9%

分享到:

資料下載

木糖

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) D-(+)-Xylose(木糖)
Product Code(產(chǎn)品編號)71184
 
Lot Number(產(chǎn)品批號)-
 
CAS No.58-86-6
 
Mol. Weight(分子量)150.13
 
Mol. Formula(分子式)C5H10O5
 
Melting Point(熔點)145℃(dec.)
 
Expiry Date(失效日期)2028-Apr-24
 
Boiling point(沸點)N/A
 
Appearance(外觀)Solid
(固體)_______________________
 
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

HPLC


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: 一区二区三区欧美日韩 | 一本久道久久综合 | 国产一区二区三区在线看 | 日本精品久久久一区二区三区 | 亚州色图欧美色图 | 欧美一区二区三区在线观看 | 国产精品成人一区二区 | 黄色毛片a| 精品久久久久久久一区二区手机版 | 久久久久久久久国产 | 女同互忝互慰dv毛片观看 | 欧美国产中文 | www欧美在线观看 | 亚洲精品美女久久久aaa | 国产精品…在线观看 | 日本a中文字幕 | 精品一区二区三区高清免费不卡 | 久久国语精品 | 91精品国产品国语在线不卡 | 国产日韩欧美第一页 | 欧美日本激情 | 亚洲欧美日本另类 | 成人精品视频一区二区在线 | 亚洲第一网站在线观看 | 唯美清纯另类亚洲 | 国产第八页 | 欧美激情91 | 欧美日韩91| 九九精品视频一区二区三区 | 一级a毛片免费观看久久精品 | 亚洲视频在线免费观看 | 欧美日韩ay在线观看 | 精品一区二区三区免费毛片爱 | 国产拍拍拍免费视频网站 | 91专区| 国产啪视频 | 丝袜视频一区 | 日韩色区 | 五十路亲子中出在线观看 | 亚洲国产成人精品久久 | 三级第一页 |