欧美色图88,美女免费三级网站,AV不卡专区,女优专区校园春色,亚洲一级二级三级视频,老色鬼无码视频在线观看

標準品/間硝基氯苯

標準品/間硝基氯苯
產(chǎn)品編號:71901
CAS號:121-73-3
規(guī)格:250mg
有效期:2030-07-09
品牌:TMstandard
標準值:99.4%

分享到:

資料下載

間硝基氯苯

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) 1-Chloro-3-nitrobenzene(間硝基氯苯)
Product Code(產(chǎn)品編號)71901
 
Lot Number(產(chǎn)品批號)-
 
CAS  .121-73-3
 
Mol. Weight(分子量)157.55
 
Mol. Formula(分子式)C6H4ClNO2
 
Melting Point(熔點)44°C(dec.)
 
Expiry Date(失效日期)2030-Jul-09
 
Boiling point(沸點)236°C(dec.)
 
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
99.4%
 
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

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

    18168802993

在線客服
什邡市| 宿迁市| 墨玉县| 新邵县| 岳阳市| 浙江省| 卢湾区| 航空| 赫章县| 恭城| 光山县| 襄垣县| 扬州市| 锦州市| 志丹县| 瑞丽市| 天等县| 双柏县| 海原县| 永嘉县| 五家渠市| 吉林省| 读书| 赞皇县| 福海县| 安阳市| 密山市| 辉南县| 兴安盟| 会同县| 苗栗县| 长治县| 通州区| 阳新县| 元阳县| 北川| 麻栗坡县| 南乐县| 新沂市| 辰溪县| 抚松县|