国产精品一区二区三麻豆-最近中文字幕在线免费视频-2021最新最全国产精品-午夜福利av日韩精品

標(biāo)準(zhǔn)品/2-己酮

標(biāo)準(zhǔn)品/2-己酮
產(chǎn)品編號:72028
CAS號:591-78-6
有效期:2030-04-23
品牌:TMstandard
標(biāo)準(zhǔn)值:99.9%

分享到:

資料下載

2-己酮

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) 2-Hexanone(2-己酮)
Product Code(產(chǎn)品編號)72028
 
Lot Number(產(chǎn)品批號)-
 
CAS No.591-78-6
 
Mol. Weight(分子量)100.16
 
Mol. Formula(分子式)C6H12O
 
Melting Point(熔點)N/A
 
Expiry Date(失效日期)2030-Apr-23
 
Boiling point(沸點)N/A
 
Appearance(外觀)Colorless Clear Liquid
(無色透明液體)____
 
Storage Temp(存儲條件)(20±5)℃,Keep in the shade
常溫(20±5)℃,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


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

    15806127965

在線客服
主站蜘蛛池模板: 国产人成视频在线观看| 一区二区三区国产不卡| 欧美亚洲国产精品三级| 国产成人婷婷丁香在线| 久久九九免费视频| 国产精品爽黄69天堂毛片| 国产亚洲精品第一综合另类 | 久久久av免费看网站| 自慰无码一区二区三区| 国产久精品热看久品热久热| 国产成人久久AV高清| 亚洲少妇高潮喷水视频| 日韩精品一区二区亚洲av| 亚洲国产一区二区三区精| 120秒视频鸡巴日逼老湿了| 国产精品国产精品国产| 久久精品黄色视频| 强奸学生妹视频一区不卡| 亚洲激情视频一区二区三区| 久久久久久久91精品免费观看| 91久久精品无码一区二区| 日韩高清网站在线观看| 国产无遮挡又黄又爽高潮| 亚洲精品不卡在线观看| 中文字幕欧美日韩一区| 欧美午夜激情在线视频| 激情520在线观看免费视频| 欧美人与性动交α欧美精一级| 国家卫健委要求各地设黄码医院| 国产熟女激情国产激情视频| 西西裸体a级午夜人体大| 人妻少妇激情综合25页 | 精品久久久久久久免费影院| 国产又大又黄又粗在线观看| 色欲精品一区二区三区AV| 人妻无码一区二区三区APP| 无码精品日韩专区第一页| 精品国产色哟av一区二区三区 | 国产精品jizz在线观看免费| 欧美日韩精品人妻一区二区| 国产明星三级在线看视频|