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>>71912-100mg-標準品/o,p'-滴滴涕
[供應]71912-100mg-標準品/o,p'-滴滴涕
舉報
返回列表頁
  • 71912-100mg-標準品/o,p'-滴滴涕
貨物所在地:
江蘇常州市
更新時間:
2024-08-09 14:28:06
有效期:
2024年8月9日 -- 2025年8月9日
已獲點擊:
34
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/o,p'-滴滴涕
產品編號:71912-100mg
CAS號:789-02-6
規格:100mg
有效期:2030-04-29
品牌:TMstandard
標準值:99.7%

詳細介紹

o,p'-滴滴涕

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) o,p'-DDT(o,p'-滴滴涕)
Product Code(產品編號)71912-100mg
Lot Number(產品批號)-
CAS No.789-02-6
Mol. Weight(分子量)354.49
Mol. Formula(分子式)C14H9Cl5
Melting Point(熔點)N/A
Expiry Date(失效日期)2030-Apr-29
Boiling point(沸點)N/A
Appearance(外觀)Solid
(固體)_____________________
Storage Temp(存儲條件)(-18±5)℃,Keep in the shade
(-18±5)℃冷凍,置于陰涼處
Transportation(運輸條件)Biological ice bag transportation(生物冰袋運輸)
C E R T I F I E D
Purity
99.7%
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

qNMR


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: 色爽黄1000部免费软件下载| 久久精品国产只有精品96| 日本AAAA级毛卡片免费观看| 亚洲欧美在线日韩| 日本欧美一区二区免费视频| 在线最新av免费费观看| 国产一区二区三区无码观看| AV亚洲产国偷V产偷V自拍| 麻豆国产自制在线观看| 精品999久久久久久| 中出人妻中文字幕91| 亚洲国产精品无码AV久久久| 欧美日韩高清性色生活片| 亚洲一区二区三区日韩欧美| 国产一区二区三区精品推荐| 精品麻豆剧传媒AV国产| 久久久久久久久久av网站| 久久艳务乳肉豪妇荡乳A片| 亚洲av无码片一区| 体育生爽擼又大又粗的雞巴的动漫| 欧美熟妇精品久久久久久| 久久精品黄AA片一区二区三区| 99亚洲精品无码| 师生系列乱肉辣伦全文阅读| JAPAN连续高潮喷水VIDEO| A欧美爰片久久毛片A片| 性一交一乱一伧一小说有声| 亚洲精品久久久久中文第一幕| 大香蕉国产成人在线| 午夜精品久久久久久影视riav| 办公室人妻滋味2| 亚洲一区AV在线观看无码漫画| 亚洲欧美一区国产| 免费看一级黄片欧美| 欧美一区日韩二区亚洲三区| 欧美人牲交A欧美精区日韩| 香蕉视频色在线| 国产高清国内精品福利色噜噜| 麻豆国产自制在线观看| 中文字幕丰满乱孑伦无码专区| 天天做天天爱夜夜爽毛片毛片|