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
国内精品久久人妻无码hd浪潮| 女人的阴道搞屄| 日本亚洲欧洲免费无线码| 无码一区二区三区蜜桃大| 我与美艳yin荡丝袜的老师| 乱码精品一卡2卡二卡三| 骚女网天天插穴| 国产精品久久久久久久妇| 女干部光着屁股让领导玩| av电影网站在线免费观看| 艹逼污视频网站| 亚洲综合av每日更新网| 极品美女爆乳液喷水视频| 免费同性男男黄网站在线| 那同房前做什么能更持久| 各种姿势玩小处雏女视频| 欧美同性猛男gay69| 玩弄外国女人肥屁股视频 | 人妻上司厨房出轨2hd院线| 人妻乳哺乳无码一区二区| 亚洲天堂男人的天堂色偷偷| 抽插 逼逼 高清 无码| 上司人妻被下属侵犯hd| 国产一级一片免费播放i| 久久在线视频这里只有精品| 男女国产猛烈无遮挡视频| 精品人妻大屁股白浆无码| 亚洲一区二区精品在线观看| 2012中文字幕国语版| 无码成人片一区二区三区| 无码亚洲dvd| 毛片无遮挡高清免费久久| 女人草吊黄色级视频淫乱| yin荡护士系列合集小说| 无码狠狠躁久久久久久久| 旧里番空之色水之色在线| 国产精品一区二区三区av| 艹少妇视频在线免费观看| 中文字幕aⅴ人妻一区二区| 亚洲精品一二| 日韩一区二区高清视频在线|