丰满少妇被强入在线观看,日本一道一区二区免费看,国产精品玖玖,老司机看片午夜久久福利

標(biāo)準(zhǔn)品/2-氯甲苯

標(biāo)準(zhǔn)品/2-氯甲苯
產(chǎn)品編號(hào):71215
CAS號(hào):95-49-8
規(guī)格:500mg
有效期:2026-12-21
品牌:TMstandard
標(biāo)準(zhǔn)值:99.8%

分享到:

資料下載

2-氯甲苯

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(chēng)) 2-Chlorotoluene(2-氯甲苯)
Product Code(產(chǎn)品編號(hào))71215
 
Lot Number(產(chǎn)品批號(hào))-
 
CAS No.95-49-8
 
Mol. Weight(分子量)126.58
 
Mol. Formula(分子式)C7H7Cl
 
Melting Point(熔點(diǎn))N/A
 
Expiry Date(失效日期)2026-Dec-21
 
Boiling point(沸點(diǎn))159℃(dec.)
 
Appearance(外觀)Liquid
(液體)______________________
 
Storage Temp(存儲(chǔ)條件)Normal temperature,Keep in the shade
常溫,置于陰涼處
C E R T I F I E D
Purity
99.8%
 
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
黑鬼大鸡巴视频在线观看| 真实播放国产乱子伦视频| 老bwbwbwbwbwbwbw| 俩男操一白丝逼| 国产老熟女啪啪免费av| 国产av一区二区凹凸精品| 成人?视频在线观看视频| 激情摸我逼视频| 国产精品一区在线app| 色婷婷久久综合五月激情网| 国产精品久久久久久杏吧| 天天躁夜夜躁狠狠躁夜夜| 日韩一区二区在线观看视频| 操女人的逼逼逼| 懂色一区二区三区久久久| 黑几八擦日本屄| 亚洲区色情区激情区电影| 啊宝贝好舒服不要停视频| 夜恋秀场全免费视频人成 | 久久久久久不卡国产精品| 少妇仑乱A毛片无码69| 丰满午夜理论大片一级毛| 国产精品第三页在线观看| 首之国产AV医生和护士| 熟女淫水大阴蒂| 精品无码人妻一区二区三区品| 国产夫妻草逼网| 午夜人妻一二区理伦影院| 萌白酱jk制服透明白丝| 中国女人与黑人a片免费| av在线免费| 亚洲色在线| 美女骚逼诱惑翘臀操骚逼| 各国所有中文字幕黄色录像| b毛内射aaa| 无码人妻一区二区三区精品视频| 91亚洲中文字幕好看的| 99久久人妻无码精品系列 | 一区二区三区免费在线看| 丰满老熟妇607080| 乳尖乱颤娇喘连连a片在线观看|