亚洲欧美91AV,国产精品无码Av在线播放,日本特级婬片中文免费看,久久亚洲国产高清观看,亚洲综合色区另类aV无码,97人人模人人爽人人少妇

標(biāo)準(zhǔn)品/4-溴-2-氯ben酚

標(biāo)準(zhǔn)品/4-溴-2-氯ben酚
產(chǎn)品編號(hào):72561
CAS號(hào):3964-56-5
規(guī)格:50mg
有效期:2027-01-16
品牌:TMstandard
標(biāo)準(zhǔn)值:99.1%

分享到:

資料下載

4-溴-2-氯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) 4-Bromo-2-chlorophenol(4-溴-2-氯ben酚)
Product Code(產(chǎn)品編號(hào))72561
 
Lot Number(產(chǎn)品批號(hào))-
 
CAS No.3964-56-5
 
Mol. Weight(分子量)207.46
 
Mol. Formula(分子式)C6H4BrClO
 
Melting Point(熔點(diǎn))47-49℃(dec.)
 
Expiry Date(失效日期)2027-Jan-16
 
Boiling point(沸點(diǎn))232-235℃(dec.)
 
Appearance(外觀)Solid
(固體)_____________________
 
Storage Temp(存儲(chǔ)條件)(-18±5)℃,Keep in the shade
(-18±5)℃冷凍,置于陰涼處
C E R T I F I E D
Purity
99.1%
 
C E R T I F I E D
Expanded Uncertainty (U)
1.0%
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(jī)

    18168802993

在線客服
沐川县| 文水县| 博湖县| 文登市| 仪陇县| 石屏县| 米脂县| 卢氏县| 泰顺县| 永德县| 河池市| 泸州市| 石门县| 于都县| 东丰县| 内丘县| 镇远县| 博兴县| 杭锦旗| 阿鲁科尔沁旗| 鹤山市| 丹江口市| 德江县| 西和县| 淮安市| 那曲县| 大同市| 桐梓县| 柯坪县| 大宁县| 灌云县| 昭通市| 贵定县| 朝阳区| 肇源县| 韶山市| 临夏县| 友谊县| 肇州县| 静海县| 太谷县|