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/對苯二胺

標準品/對苯二胺
產品編號:71004-10mg
CAS號:106-50-3
規格:10mg
有效期:2026-08-15
品牌:TMstandard
標準值:99.9%

分享到:

資料下載

對苯二胺

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 1,4-Phenylenediamine
Product Code71004-10mg
 
Lot Number-
 
CAS .106-50-3
 
Mol. Weight108.14
 
Mol. FormulaC6H8N2
 
Melting Point139.7℃(dec.)
 
Expiry Date2026-Aug-15
 
Boiling pointN/A
 
AppearanceWhite to Off-White Solid_
 
Storage Temp(-18±5)℃,Keep in the shade
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

GC


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: 亚洲人成影院午夜网站| 91亚洲在线| 俄罗斯引擎首页进入| 四虎影院新地址| 513热点网深夜影院影院诶| 窝窝午夜理伦影院| 日本 片 成人 在线| 色老板免费| 国产亚洲视频在线| 99福利视频导航| 肉蒲在线观看| 久久视频在线视频| 欧美男同videos| 久久内在线视频精品mp4| 日老逼| 国内外精品免费视频| 无码国产成人777爽死在线观看 | 国产伦精一区二区三区视频| 欧美成人免费观看bbb| 91小视频在线观看免费版高清| 日本嫩模| 国产成人激情| 精品亚洲麻豆1区2区3区| 人人人人看人人人做人人| 99热er| 九九热免费在线观看| 亚洲精品国产A久久久久久| 丝袜捆绑调教视频免费区| 99只有精品| 精品午夜中文字幕熟女人妻在线| 亚洲高清网站| 波多野结衣两女调教| 三级伦理在线播放| 免费观看欧美性一级| 动漫美女隐私尿口图片| 91最新国产| 爱爱小说漫画| 色老头oldmoneyvideos| 欧美一卡2卡三卡4卡5卡免费观看| 高清视频免费| 国产亚洲sss在线观看|