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(biāo)準(zhǔn)品/苝

標(biāo)準(zhǔn)品/苝
產(chǎn)品編號(hào):72198
CAS號(hào):198-55-0
規(guī)格:10mg
有效期:2030-05-19
品牌:TMstandard
標(biāo)準(zhǔn)值:99.9%

分享到:

資料下載

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) Perylene(苝)
Product Code(產(chǎn)品編號(hào))72198
 
Lot Number(產(chǎn)品批號(hào))-
 
CAS  .198-55-0
 
Mol. Weight(分子量)252.31
 
Mol. Formula(分子式)C20H12
 
Melting Point(熔點(diǎn))275-279℃(dec.)
 
Expiry Date(失效日期)2030-May-19
 
Boiling point(沸點(diǎn))N/A
 
Appearance(外觀)Solid
(固體)_______________________
 
Storage Temp(存儲(chǔ)條件)Normal temperature,Keep in the shade
常溫,置于陰涼處
 
Transportation(運(yùn)輸條件)Normal temperature transportation(常溫運(yùn)輸)
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(jī)

    18168802993

在線客服
主站蜘蛛池模板: 淫综合网| 麻豆成人免费视频 | 四虎永久免费地址在线观看 | 男女男在线观看视频网站 | 澳门四虎 | 亚洲免费人成在线视频观看 | α片毛片免费看 | 日韩在线二区全免费 | 成人免费在线视频网 | 免费在线观看黄色的网站 | 老司机亚洲精品影院在线 | 不卡视频免费在线观看 | 国产麻豆剧传媒精品国产免费 | 久久国产免费观看精品 | 国产欧美日韩综合一区二区三区 | 九九久久国产精品 | 亚洲美女性生活视频 | 欧美在线黄色 | 性欧美午夜高清在线观看 | 免费久久精品国产片香蕉 | dizhi91 | 日韩快播网 | 99re视频精品全部免费 | 青草娱乐极品免费视频 | 亚洲每日更新 | 亚洲天堂区 | 亚洲精品在线免费 | 日本成人免费在线视频 | 任你草 | 欧美日韩亚洲另类 | 国内精品久久久久久久久蜜桃 | 欧美精品91 | 日本精品网 | 国产亚洲玖玖玖在线观看 | 好男人社区神马www在线观看 | 青青视频二区 | a毛片免费 | 五月婷婷导航 | 国产午夜亚洲精品 | 国产精品视频一区二区噜噜 | 国产欧美日韩不卡 |