久久5-久久4-久久3-久久2019-一个人hd高清在线观看免费一-一个人hd高清在线观看免费

標準品/姥鮫烷

  • 型   號:72572-100mg
  • 類   別:純品標準品
  • 價   格:250

標準品/姥鮫烷
產(chǎn)品編號:72572-100mg
CAS號:1921-70-6
規(guī)格:100mg
有效期:2027-07-10
品牌:TMstandard
標準值:98.7%

分享到:

資料下載

姥鮫烷

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) Pristane(姥鮫烷)
Product Code(產(chǎn)品編號)72572-100mg
 
Lot Number(產(chǎn)品批號)-
 
CAS N .1921-70-6
 
Mol. Weight(分子量)268.52
 
Mol. Formula(分子式)C19H40
 
Melting Point(熔點)N/A
 
Expiry Date(失效日期)2027-Jul-10
 
Boiling point(沸點)N/A
 
Appearance(外觀)Solid
(固體)_____________________
 
Storage Temp(存儲條件)(-18±5)℃,Keep in the shade
冷凍(-18±5)℃,置于陰涼處
C E R T I F I E D
Purity
98.7%
 
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

    18168802993

在線客服
主站蜘蛛池模板: 日韩欧美国产中文 | 欧美一区二区三区四区五区六区 | 99精品国产自产在线观看 | 日产精品卡2卡三卡乱码网址 | www.4虎影院| 五月婷婷基地 | 国产精品成人免费视频 | 欧美日韩在线观看区一二 | 在线观看91精品国产hd | 2019国产开嫩苞视频 | 亚洲成a人| 欧美午夜精品久久久久免费视 | 国产91区精品福利在线社区 | 欧美一区二区高清 | 成人免费观看的视频黄页 | 中国精品久久精品三级 | 自拍第1页 | 一级毛片一级片 | 男人和女人真曰批全过程 | 加勒比综合 | 亚洲人av高清无码 | 国产麻豆精品在线观看 | 99热2| 亚洲成人第一页 | 乱一色一一区二区三区 | 欧美一级黄色片在线观看 | 91热国内精品永久免费观看 | 男人阁久久 | 九九热视频在线播放 | 人人模人人干 | 国内精品久久久久影院一蜜桃 | 亚洲国产精品免费观看 | 国产尤物二区三区在线观看 | 婷婷中文网 | 青青青免费在线视频 | 91久久99| 四虎在线视频免费观看 | 一区精品麻豆入口 | 欧美黄色片免费观看 | 免费三级在线观看 | 久久久久激情免费观看 |