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>>72288-標準品/1-羥基芘
[供應]72288-標準品/1-羥基芘
舉報
返回列表頁
  • 72288-標準品/1-羥基芘
貨物所在地:
江蘇常州市
更新時間:
2024-08-13 16:58:20
有效期:
2024年8月13日 -- 2025年8月13日
已獲點擊:
41
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/1-羥基芘
產品編號:72288
CAS號:5315-79-7
規格:10mg
有效期:2026-07-16
品牌:TMstandard
標準值:97.4%

詳細介紹

1-羥基芘

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) 1-Hydroxypyrene(1-羥基芘)
Product Code(產品編號)72288
Lot Number(產品批號)-
CAS No.5315-79-7
Mol. Weight(分子量)218.25
Mol. Formula(分子式)C16H10O
Melting Point(熔點)179-182℃(dec.)
Expiry Date(失效日期)2026-Jul-16
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
C E R T I F I E D
Purity
97.4%
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

HPLC/DAD


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: 日本无码人妻丰满熟妇A片| 国产三级精品久久久久| 久久九九国产精品怡红院| 日韩A片免费一区二区三区| 少妇高潮灌满白浆毛片免费看| 浪潮AV在线观看高清| 日韩成人免费国产电影| 日韩精品区一区二区三VR| 四虎永久在线精品国产免费| 综合精品欧美日韩国产在线| 国产日韩精品欧美2020区| 亚洲天堂网2020| 日韩欧美在线一区二区| 娇妻用力嗯啊噗嗤紫黑| 美女内射毛片在线看| 国产亚洲精品久久久久的角色| 日本欧美中文字幕人在线| 肉多NP 巨H公交车| 农村熟妇高潮精品A片| 国产一区二区中文字幕| 东京热无码免费A片免费下载| 受被三个攻各种道具PLAY| 91午夜福利在线视频| 一区二区三区东京热| 无码免费视频AAAAAA片草莓| 国产超碰97人人做人人爱| 三个老外与一女做爰A片| 色情爱视频网站免费观看| 日韩中文字幕区一区有砖一区| 久久黄色网址| 国产成人精品午夜福利在线播放| 激情淫秽欧美视频| 亚洲色欲色欲综合网站| 日韩精品专区一区二区| 牛牛在线(正)精品视频| 久久久乱码精品亚洲日韩小说| 欧美精品人妻a v| 东京热男人的av天堂| 糙汉猛H1v1她想被C| 99精品久久久久久国产人妻| 国产精品高潮呻吟AV久久黄|