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

標準品/對醛基苯甲酸

  • 型   號:717489-10mg
  • 類   別:純品標準品
  • 價   格:180

標準品/對醛基苯甲酸
產品編號:717489-10mg
CAS號:619-66-9
規格:10mg
有效期:2025-09-26
品牌:TMstandard
標準值:97.3%

分享到:

資料下載

對醛基苯甲酸

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

Product Name(產品名稱) 4-Formylbenzoic Acid(對醛基苯甲酸)
Product Code(產品編號)717489-10mg
 
Lot Number(產品批號)-
 
CAS No.619-66-9
 
Mol. Weight(分子量)150.13
 
Mol. Formula(分子式)C8H6O3
 
Melting Point(熔點)N/A
 
Expiry Date(失效日期)2025-Sep-26
 
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
C E R T I F I E D
Purity
97.3%
 
C E R T I F I E D
Expanded Uncertainty (U)
2.0%
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


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.


壇墨質檢
  • 電話

    4008-099-669

    手機

    18168802993

在線客服
主站蜘蛛池模板: 调教老师肉色丝袜的故事 | 操男孩| 四虎影视4hutv最新地址在线 | www.男人的天堂.com | 国产日韩精品一区二区在线观看播放 | 极品美女aⅴ高清在线观看 极品ts赵恩静和直男激战啪啪 | porno日本大学生高清 | 91庥豆果冻天美精东蜜桃传媒 | 青草视频在线观看视频 | 国产欧美曰韩一区二区三区 | 99热影视| 免费观看在线 | 外国老少性配 | 国产在线一区二区视频 | 欧美亚洲另类在线观看 | 日韩视频免费一区二区三区 | 四虎影视国产精品婷婷 | 欧美高清videosex极品 | 给我免费的视频在线观看 | 日本片免费观看一区二区 | 日韩一区二区不卡 | ysl蜜桃色成人麻豆 youwu在线影院 | 日本黄色录像视频 | 久久99热狠狠色AV蜜臀 | 草草在线免费视频 | 日本妇人成熟免费观看18 | 99久久免费国产特黄 | 精品久久综合一区二区 | 2019自拍偷拍视频 | 果冻传媒九一制片厂 | 国产精品女同久久免费观看 | 手机在线免费观看日本推理片 | 欧美性4khd720 | 色淫影院 | 婷婷天天 | 欧美a在线观看 | 国产私拍精品88福利视频 | 国产欧美日韩不卡 | 非洲黑人bbwbbwbbw | 国产全部理论片线观看 | 欧美亚洲国产另类在线观看 |