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/磺胺苯酰-苯甲酰磺胺

標(biāo)準(zhǔn)品/磺胺苯酰-苯甲酰磺胺
產(chǎn)品編號(hào):70524
CAS號(hào):127-71-9
規(guī)格:250mg
有效期:2029-07-21
品牌:TMstandard
標(biāo)準(zhǔn)值:99.4%

分享到:

資料下載

磺胺苯酰-苯甲酰磺胺

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) Sulfabenzamide(磺胺苯酰-苯甲酰磺胺)
Product Code(產(chǎn)品編號(hào))70524
 
Lot Number(產(chǎn)品批號(hào))-
 
CAS .127-71-9
 
Mol. Weight(分子量)276.31
 
Mol. Formula(分子式)C13H12N2O3S
 
Melting Point(熔點(diǎn))181.5℃(dec.)
 
Expiry Date(失效日期)2029-Jul-21
 
Boiling point(沸點(diǎn))N/A
 
Appearance(外觀)Solid
(固體)_________________
 
Storage Temp(存儲(chǔ)條件)(2-8)℃,Keep in the shade
(2~8)℃冷藏,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
99.4%
 
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

Nonaqueous Titration


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: 欧美福利一区二区三区 | 欧美日韩一区二区三区高清不卡 | 久久99综合| 久久青视频 | 失乐园在线播放 | 91天堂在线 | 欧美亚洲国产成人精品 | 国产精品毛片在线完整版sa | 欧美亚洲视频在线观看 | 亚洲欧洲日韩国产一区二区三区 | 在线看欧美日韩中文字幕 | 国产a免费视频 | 成年黄色网址 | 四虎永久地址4hu2019 | 日日碰夜夜 | www.日本黄 | 免费在线不卡视频 | 欧美三级超在线视频 | 日韩在线一区二区三区免费视频 | 97免费视频免费视频 | 国产成人精品久久 | 99热精品在线 | 日本黄色免费网站 | 国产wwwww| 亚洲爆操| 久久亚洲私人国产精品 | 欧美日韩网| 国内精品自产拍在线观看91 | 亚洲成年人在线 | 夜夜艹日日干 | 日韩精品1 | 一区二区影院 | 久久精品一区二区三区资源网 | 91桃色在线 | 五月天婷婷免费观看视频在线 | 手机看片国产高清 | 狠狠色狠狠色很很综合很久久 | 黄色片免费在线观看视频 | 欧美一区二区三区影院 | 亚洲这里只有精品 | 国内视频精品 |