强壮的公次次弄得我高潮A片日本,日本无码av不卡手机在线观看,久久日产一线二线三线品,久久久国产精品

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

    15806127965

在線客服
  1. <noscript id="0xiga"><listing id="0xiga"><nav id="0xiga"></nav></listing></noscript>
      <var id="0xiga"><listing id="0xiga"><cite id="0xiga"></cite></listing></var>

      主站蜘蛛池模板: 四虎永久地址WWW成人| 青青青国产免费线在线观看| 亚洲一码和欧洲二码的尺码区别| 欧美亚洲日本国产黑白配| 宣城市| 午夜视频在线在免费| 神农架林区| 国产浓毛大泬熟妇视频| 文水县| 将乐县| 日本老熟妇乱子伦视频| 长葛市| 宣汉县| 西乌珠穆沁旗| 免费国产在线精品一区| 亚洲经典一曲二曲三曲| 欧美乱妇高清无乱码| 亚洲中文无码永久免费| 亚洲****永久免费| 青青青青久久精品国产| 免费萌白酱国产一区二区三区| 中文无码精品A∨在线观看不卡| 黑河市| 国产又粗又猛又黄又爽无遮挡| 欧美高清欧美av片| 大地资源二在线观看免费高清 | 盐边县| 欧美俄罗斯40老熟妇| 日本免费精品一区二区三区| 一区二区三区精密机械公司| 秋霞影视欧美高清av片| 溆浦县| 国产真人做爰视频免费| 邹城市| 日本最大色倩网站www| 阳春市| 赫章县| 欧美14一18处免费| 国产精品999| 中文字幕一区二区人妻电影| 欧美大胆a级视频|