標準品/2-氯甲苯

    標準品/2-氯甲苯
    產品編號:71215
    CAS號:95-49-8
    規格:500mg
    有效期:2026-12-21
    品牌:TMstandard
    標準值:99.8%

    分享到:

    資料下載

    2-氯甲苯

    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(產品名稱) 2-Chlorotoluene(2-氯甲苯)
    Product Code(產品編號)71215
     
    Lot Number(產品批號)-
     
    CAS No.95-49-8
     
    Mol. Weight(分子量)126.58
     
    Mol. Formula(分子式)C7H7Cl
     
    Melting Point(熔點)N/A
     
    Expiry Date(失效日期)2026-Dec-21
     
    Boiling point(沸點)159℃(dec.)
     
    Appearance(外觀)Liquid
    (液體)______________________
     
    Storage Temp(存儲條件)Normal temperature,Keep in the shade
    常溫,置于陰涼處
    C E R T I F I E D
    Purity
    99.8%
     
    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.


    壇墨質檢
    • 電話

      4008-099-669

      手機

      18168802993

    在線客服
    主站蜘蛛池模板: 国产精品美女久久久| 日韩在线观看免费完整版视频 | 亚洲V欧美V国产V在线观看| 精品性高朝久久久久久久| 国产热の有码热の无码视频| 《波多野结衣系列mkmp-305》| 日韩视频免费看| 亚洲视频欧洲视频| 色综合久久久无码中文字幕| 国产精品无码一区二区三区不卡| 一级黄色片大全| 日韩人妻无码一区二区三区久久| 亚洲欧美乱综合图片区小说区| 精品无人区乱码麻豆1区2区| 国产大片91精品免费观看男同| 97精品人妻一区二区三区香蕉| 成年女人毛片免费视频| 亚洲AV永久无码精品表情包| 波多野结衣大战5个黑人| 四虎影院最新域名| 黄色a级片免费看| 国产精品综合色区在线观看| spoz是什么意思医学| 日本xxxx色视频在线播放| 亚洲av无码成人精品区狼人影院| 焰灵姬你下面好紧| 又粗又黑又大的吊av| 韩国伦理s级在线| 国产精品电影网| a级毛片免费网站| 新梅瓶4在线观看dvd| 亚洲一区二区三区深夜天堂| 特级按摩一级毛片| 四个美女大学被十七个txt| 久久久精品波多野结衣| 污污污污污污www网站免费| 国产91精品系列在线观看| 4444www免费看| 奇米影视奇米四色888av| 久久99精品久久久久久国产| 校园春色另类小说|