日韩综合在线I91福利社在线观看I最新国产精品一区I国产性猛交╳XXX乱大交Iwww.91爱爱.comIav色播I欧美一级视频I美女网站在线免费观看I777欧美视频

標準品/二丁基醚

  • 型   號:78289
  • 類   別:標準品
  • 價   格:350

標準品/二丁基醚
產品編號:78289
CAS號:142-96-1
規格:2mL
有效期:2026-12-09
品牌:TMstandard
標準值:99.6%

分享到:

資料下載

二丁基醚

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(產品名稱) Dibutyl Ether(二丁基醚)
Product Code(產品編號)78289
 
Lot Number(產品批號)-
 
CAS No.:142-96-1
 
Mol. Weight(分子量)130.23
 
Mol. Formula(分子式)C8H18O
 
Melting Point(熔點)N/A
 
Expiry Date(失效日期)2026-Dec-09
 
Boiling point(沸點)141℃(dec.)
 
Appearance(外觀)Colorless Clear Liquid
(無色液體)____
 
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
99.6%
 
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/FID

Batch Information

Water Content by Karl-Fischer Titration: 0.03%

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.


壇墨質檢
  • 電話

    4008-099-669

    手機

    15806127965

在線客服
主站蜘蛛池模板: 一区二区三区视频免费观看 | 无码伊人久久大杳蕉中文无码 | 中出视频在线观看 | 久草成人在线 | 999精品视频 | 天堂av中文字幕 | 草草影院精品一区二区三区 | 国产女同疯狂互摸系列3 | 亚洲色欲或者高潮影院 | 国产又黄又爽又色的免费视频白丝 | 国产精品入口麻豆www | 超级碰在线视频 | 久久婷婷国产综合精品 | 少妇高潮21p | 少妇被粗大的猛烈进出动视频 | 成人免费观看男女羞羞视频 | 九九精品热| 国产亚洲精品自在久久vr | 在线播放91 | 欧美一级爽aaaaa大片 | 97人妻碰碰视频免费上线 | 亚洲 欧美 天堂 综合 | 芭蕉视频在线观看 | 插插网站 | 日韩一区二区三区视频在线 | 亚洲夜夜欢a∨一区二区三区 | 久久久喷潮一区二区三区 | 另类二区 | 超清av在线播放不卡无码 | 亚洲欧洲综合有码无码 | 妓女妓女一区二区三区在线观看 | 亚洲一级一级一级 | 免费看男女做爰爽爽视频 | 免费动漫吸乳羞羞网站视 | 少妇激情一区二区三区 | 亚洲女与黑人做爰 | 国产又色又爽又黄的在线观看视频 | 天天干夜夜爱 | 成人秘密在线观看 | 亚洲精品资源在线 | 成年人毛片| 亚洲国产精品久久久久 | 天干夜啦天干天干国产免费 | 色婷婷综合久久中文字幕雪峰 | 国产午夜成人av在线播放 | 欧美综合人人做人人爱 | 国农村精品国产自线拍 | 国内偷拍久久 | 夜夜精品浪潮av一区二区三区 | 日韩综合夜夜香内射 | 精品丰满人妻无套内射 | 色视频2 | 自拍区小说区图片区亚洲 | 亚洲午夜福利在线观看 | 观看av在线 | 国产女王调脚奴免费视频 | 一二三在线视频 | 国产人妻精品久久久久野外 | 高清中文字幕在线a片 | 国产精品丝袜 | 国产成人不卡无码免费视频 | 久久无码人妻丰满熟妇区毛片 | 国内少妇高潮嗷嗷叫在线播放 | 91久久 | 亚洲日本国产精品 | 国产伦理一区二区三区 | 欧美日韩在线一区 | 久久精品麻豆日日躁夜夜躁妓女 | 大胆欧美熟妇xxbbwwbw高潮了 | 97偷拍少妇性按摩spa全程 | 久在线精品视频线观看 | av在线不卡网站 | 日韩在线视频不卡 | 一个人看的www视频在线观看 | 成人高清视频在线观看 | av在线有码 | 影音先锋久久久久av综合网成人 | 天天摸天天草 | 三级黄色在线视频 | 国产麻豆剧传媒精品国产av | 欧美日韩卡一卡二 | 啦啦啦www播放日本观看 | 少妇第一次交换又紧又爽 | 2024国产精品视频 | 夜夜夜夜bbbbbb欧美 | 欧美在线观看视频一区二区 | 欧美成人午夜精品免费 | 性夜影院爽黄e爽 | 亚洲伊人成色综合网 | 欧美成人一区二区 | 毛片看| 少妇太紧太爽又黄又硬又爽小说 | 欧美一区二区三区在线免费观看 | 在线永久看片免费的视频 | 456欧美成人免费视频 | 国产精品嫩草久久久久 | 91精品国产色综合久久不卡蜜臀 | 激情内射亚洲一区二区三区 | 国产一级性生活视频 |