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: 出差我被公高潮A片1000部| 国内熟女精品熟女A片视频小说| 亚洲AV国产喂奶在线观看| 国产在线自揄拍揄视频网站| 九九热在线这里只有精品| 国产亚洲曝欧美曝妖精品| 国产精品久久久久精囗交| 一级片欧美女人性生活片| 在线亚洲AV成人无码三区| 国产免费A片好硬好爽好深小说| 日本无码人妻精品一区二区视频| 洗澡被公强玩好舒服肉欲小说| 丁香激情五月| 精国产品一区二区三区A片| 亚洲精品久久久992KVTV| 国产精品亚洲综合日韩| 午夜性啪啪A片免费AAA毛片| 欧美日韩综合无码中文字幕| 中文字幕熟女人妻佐佐木| 欧美性生活一级片| 老妇FREE性VIDEOSXX| 国产香蕉视频| 欧美日韩免费一区二区| 亚洲男人电影天堂网| 日本一区午夜爱爱| 真人性做爰88式免费视频| 国产精品中文字幕日韩| 中文精品久久久久人妻不卡| 亚洲av人人澡人人爽人人夜| 日韩精品一区二区黄| 亚洲精品久久久一二三区| 最新热久久99这里有精品| 一级特黄性色生活片一区二区| 中文字幕亚洲欧美一区| 欧美精品在线一二三区| 欧美精品18videosex性俄罗斯| 国产的一级毛片最新在线直播| 疯狂揉小泬到失禁高潮汗汗漫画| 精品久久久久久亚洲网站| 国产av人人夜夜澡人人爽| 国内揄拍国产精品人妻门事件|