国产精品一区二区三麻豆-最近中文字幕在线免费视频-2021最新最全国产精品-午夜福利av日韩精品

標(biāo)準(zhǔn)品/苯磺酸乙酯

標(biāo)準(zhǔn)品/苯磺酸乙酯
產(chǎn)品編號:709770-10mg
CAS號:515-46-8
規(guī)格:10mg
有效期:2026-11-15
品牌:TMstandard
標(biāo)準(zhǔn)值:99.9%

分享到:

資料下載

苯磺酸乙酯

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(chǎn)品名稱) Ethyl Benzenesulfonate(苯磺酸乙酯)
Product Code(產(chǎn)品編號)709770-10mg
 
Lot Number(產(chǎn)品批號)-
 
CAS No.515-46-8
 
Mol. Weight(分子量)186.23
 
Mol. Formula(分子式)C8H10O3S
 
Melting Point(熔點(diǎn))N/A
 
Expiry Date(失效日期)2026-Nov-15
 
Boiling point(沸點(diǎn))N/A
 
Appearance(外觀)Colorless Clear Liquid
(無色透明液體)__
 
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
99.9%
 
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


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(zhì)檢
  • 電話

    4008-099-669

    手機(jī)

    15806127965

在線客服
主站蜘蛛池模板: 日韩国产精品亚洲а∨天堂免| 亚洲精品人妻吞精av| 嗯啊啊啊中文对白在线观看| 精品日韩人妻中文字幕| 日本成人午夜一区二区三区| 日本久久精品黄色三级片| 无色福利最新人妻av| 麻酥酥自慰喷水白浆在线观看| 女友来了免费完整版高清在线观看 | 别插进去的视频在线免费观看| 欧美亚洲一区二区久久| 人人妻人人澡人人精品97| 国产精品亚洲片在线va| 色婷婷在线精品国自产拍| 中文乱码免费一区二区| 93久久精品日日躁夜夜躁| 亚洲精品日韩一区二区三区| 激情综合网婷婷五月天| 欧美激情丰满大屁股| 亚州av一区二区三区| 高潮VPSWINDOWS国产乱| 国产无遮挡又黄又爽又大| 天天爽天天色天天射| 天天射影院天天射综合网| 欧美色欧美亚洲另类七区 | 美女极品粉嫩美鲍20P| 精品久久国产日本超爽视频| 中文字幕精品在线观看网址| 国产免费一区二区三区免费| 国产成A人亚洲精V品无码性色| 性感美女高潮视频久久久| 成人免费在线国产视频| 搞BB内射在线观看视频| 国产成人三级在线视频| 国产成人三级在线视频| 无码粉嫩小泬白浆喷水高潮| 一区二区三区四区伦理影片| 亚洲欧美另类动漫一区二区| 成人免费A级毛片无码视频| 日本av在线中文一区二区| 人妻女教师的沉沦王玥|