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/2,4,6-三叔丁基ben酚

標(biāo)準(zhǔn)品/2,4,6-三叔丁基ben酚
產(chǎn)品編號(hào):72227-100mg
CAS號(hào):732-26-3
規(guī)格:100mg
有效期:2029-08-02
品牌:TMstandard
標(biāo)準(zhǔn)值:99.4%

分享到:

資料下載

2,4,6-三叔丁基ben酚

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) 2,4,6-Tri-tert-butylphenol(2,4,6-三叔丁基ben酚)
Product Code(產(chǎn)品編號(hào))72227-100mg
 
Lot Number(產(chǎn)品批號(hào))-
 
CAS No.732-26-3
 
Mol. Weight(分子量)262.43
 
Mol. Formula(分子式)C18H30O
 
Melting Point(熔點(diǎn))129-132℃(dec.)
 
Expiry Date(失效日期)2029-Aug-02
 
Boiling point(沸點(diǎn))277℃(dec.)
 
Appearance(外觀)Solid
(固體)_________________
 
Storage Temp(存儲(chǔ)條件)(2~8)℃,Keep in the shade
冷藏(2~8)℃,置于陰涼處
C E R T I F I E D
Purity
99.4%
 
C E R T I F I E D
Expanded Uncertainty (U)
0.8%
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

HPLC


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: 免费在线看片网站| 美女隐私部位视频网站| 国产精品色拉拉免费看| 日本视频在线免费看| 国产成人精品一区二区不卡 | 国产亚洲精品aaa大片| 99视频网址| 欧美日韩一级视频| 成人欧美一区二区三区白人| 男人操女生| 日本在线国产| 韩国免费视频| 亚洲AV午夜精品麻豆AV| 男人猛戳女人下部30分钟| 国产成人手机在线好好热| 亚洲视频观看| 脱jk裙的美女露小内内无遮挡| blacked在线播放| 91tm视频| 男女发生性关系视频| 国产精品手机视频一区二区| 国产成人免费在线视频| 性柔术xxxhd| 无人影院免费观看| 美女曰逼视频| 国产精品一区二区久久| 国产香蕉97碰碰久久人人| 我要看靠逼片| 猛男深夜狂cao小男生| 精品视频网站| 高清在线免费| 91频视| 色综合久久九月婷婷色综合| 亚洲国产精品免费在线观看| 精品福利一区| 国产麻豆精品入口在线观看| 亚洲国产精品综合一区在线 | 亚洲H成年动漫在线观看不卡| 欧美伊人影院| 日韩精品视频福利资源站| k逼|