中国少妇性bbbbbb,理论电影大全,日本精品中文字幕在线播放,人妻系列电影

標(biāo)準(zhǔn)品/六氯丙烯

標(biāo)準(zhǔn)品/六氯丙烯
產(chǎn)品編號:721988-250mg
CAS號:1888-71-7
規(guī)格:250mg
有效期:2027-07-10
品牌:TMstandard
標(biāo)準(zhǔn)值:98.0%

分享到:

資料下載

六氯丙烯

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) Hexachloropropene(六氯丙烯)
Product Code(產(chǎn)品編號)721988-250mg
 
Lot Number(產(chǎn)品批號)-
 
CAS  .1888-71-7
 
Mol. Weight(分子量)248.75
 
Mol. Formula(分子式)C3Cl6
 
Melting Point(熔點(diǎn))N/A
 
Expiry Date(失效日期)2027-Jul-10
 
Boiling point(沸點(diǎn))209-210℃(dec.)
 
Appearance(外觀)Liquid
(液體)________________
 
Storage Temp(存儲條件)(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
98.0%
 
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

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)

    15806127965

在線客服
主站蜘蛛池模板: 许昌市| 孝义市| 合山市| 漳平市| 德令哈市| 浙江省| 前郭尔| 顺昌县| 眉山市| 长垣县| 汾西县| 山东| 鸡西市| 久治县| 岳阳市| 准格尔旗| 内黄县| 孝昌县| 光山县| 颍上县| 安陆市| 玉龙| 安塞县| 普定县| 姚安县| 古丈县| 剑阁县| 宁陵县| 通河县| 上虞市| 渝中区| 七台河市| 盐亭县| 淮安市| 乌拉特后旗| 醴陵市| 加查县| 东乡县| 东安县| 礼泉县| 嘉兴市|