成人做爰免费视频免费看_成人a级高清视频在线观看,成人a大片在线观看,成人a大片高清在线观看,成人av在线播放,一a一级片,一级黄 中国色 片,一级黄 色蝶 片,一级黄色 片生活片

| 注冊| 產品展廳| 收藏該商鋪

行業產品

18168802993
當前位置:
壇墨質檢科技股份有限公司>>商機中心>>供應列表>>72639-10mg-標準品/鹽酸丁二胍
[供應]72639-10mg-標準品/鹽酸丁二胍
舉報
返回列表頁
  • 72639-10mg-標準品/鹽酸丁二胍
貨物所在地:
江蘇常州市
更新時間:
2024-08-05 13:11:31
有效期:
2024年8月5日 -- 2025年8月5日
已獲點擊:
78
在線詢價 收藏產品

(聯系我們,請說明是在 化工儀器網 上看到的信息,謝謝!)

產品簡介

標準品/鹽酸丁二胍
產品編號:72639-10mg
CAS號:1190-53-0
規格:10mg
有效期:2029-06-14
品牌:TMstandard
標準值:99.4%

詳細介紹

鹽酸丁二胍

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 17025, ISO 17034 and a registered quality management system ISO 9001.

Product Name(產品名稱) Buformin Hydrochloride(鹽酸丁二胍)
Product Code(產品編號)72639-10mg
Lot Number(產品批號)-
CAS  .1190-53-0
Mol. Weight(分子量)193.68
Mol. Formula(分子式)C6H15N5·HCl
Melting Point(熔點)179℃(dec.)
Expiry Date(失效日期)2029-Jun-14
Boiling point(沸點)N/A
Appearance(外觀)Solid
(固體)_________________
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
99.4%
C E R T I F I E D
Expanded Uncertainty (U)
2.0%
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


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.



會員登錄

×

請輸入賬號

請輸入密碼

=

請輸驗證碼

收藏該商鋪

登錄 后再收藏

提示

您的留言已提交成功!我們將在第一時間回復您~

對比框

產品對比 產品對比 二維碼 意見反饋
在線留言
主站蜘蛛池模板: 久久国产色| 日韩免费三级电影| 午夜日本大胆裸艺术| 国产猛男猛女超爽免费视频| 少妇饥渴无码高潮A片爽爽小说| 日韩欧美p片内射久久| 久久精品动漫网一区二区| 欧美 日本 亚欧在线观看| 国产真人性做爰久久网站| 久久久日韩成人精品电影| 在厨房挺进市长美妇雪臀漫画| 国产精品久久久久久久久动漫| 日韩中文在线字幕| 亚洲中文日韩字幕在线观看| 国产内射爽爽大片视频社区在线| 无码国产精品一区二区色情男同| 久久久久久久岛国免费播放| 欧美日韩国产亚洲沙发| 里番本子侵犯肉全彩A片视频一区| 日韩精品亚洲综合| 亚洲国产日韩中文字幕| 国产 精选 bt 天堂| 国产日韩中文字幕| 色一情一乱一乱一区99AV| 亚洲精品久久无码午夜一区二区| 日本一区午夜爱爱| free xxxx movies兽交| 国产SUV精品一区二区| 亚洲欧美熟妇综合久久久久久| 91三级黄色片儿| 国产成人无码视频一区二区三区| 国产精品视频一区二区猎奇| 人妻丰满熟妇Aⅴ无码| 国产亚洲精品线视频在线| 亚洲欧美自拍偷拍中文字幕| 亚洲精品久久久鸭子| 欧美av大片在线观看| 国产AV高清怡春院| 欧美乱人伦一区二区三区| 激情婷婷丁香五月色综合| 久久久中文字幕人妻一区|