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(biāo)準(zhǔn)品/二硫赤蘚醇

標(biāo)準(zhǔn)品/二硫赤蘚醇
產(chǎn)品編號:714246-100mg
CAS號:6892-68-8
規(guī)格:100mg
有效期:2025-11-26
品牌:TMstandard
標(biāo)準(zhǔn)值:99.9%

分享到:

資料下載

二硫赤蘚醇

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) Dithioerythritol(二硫赤蘚醇)
Product Code(產(chǎn)品編號)714246-100mg
 
Lot Number(產(chǎn)品批號)-
 
CAS No.6892-68-8
 
Mol. Weight(分子量)154.25
 
Mol. Formula(分子式)C4H10O2S2
 
Melting Point(熔點)N/A
 
Expiry Date(失效日期)2025-Nov-26
 
Boiling point(沸點)N/A
 
Appearance(外觀)Solid
(固體)_________________
 
Storage Temp(存儲條件)(2-8)℃,Keep in the shade
(2~8)℃冷藏,置于陰涼處
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/FID


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: 免费在线观看a | 青草青青在线 | 黄瓜视频导航 | 日韩在线视频一区二区三区 | 动漫在线观看h | gay台湾无套男同志可播放 | 91真人毛片一级在线播放 | 男人捅女人动漫 | 国产精品夜夜爽张柏芝 | 国产精品思瑞在线观看 | 亚洲日韩精品欧美一区二区一 | 大叔在线观看 | 日韩精品一区二三区中文 | 精品小视频在线观看 | 美女污视频| h日本漫画全彩在线观看 | freesex1718处xx| 亚洲娇小videos | 国内精品久久久久影院男同志 | sex5·性屋娱乐| 国产图色 | 香蕉eeww99国产在线观看 | 国产一卡2卡3卡四卡精品网 | 脱jk裙的美女露小内内无遮挡 | 色综合伊人色综合网亚洲欧洲 | 欧美成人免费观看国产 | 欧美贵妇videos办公室360 | 手机跑分排行最新排名 | 国产精品久久久久毛片真精品 | 久久婷婷五月综合色丁香花 | 久久五月综合婷婷中文云霸高清 | 免费我看视频在线观看 | 高黄h文各种play | 喷出奶汁了h| 日本啊v在线观看 | 久久aa毛片免费播放嗯啊 | 午夜精品久视频在线观看 | 1313午夜精品久久午夜片 | 亚洲免费大全 | 国产成人精品一区 | 91制片厂制作传媒网站破解 |