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DENWAT

纯水密度标准物质RM, 0.9982 g/mL(20 °C)

UKAS ISO/IEC17025 and ISO Guide 34 certified, density: 0.9982 g/mL at 20 °C, density: 0.9970 g/mL at 25 °C

别名:

水

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60 ML
$274.00

$274.00

预计发货时间2025年4月21日详情

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60 ML
$274.00

About This Item

线性分子式:
H2O
CAS号:
7732-18-5
分子量:
18.02
Beilstein:
2050024
EC 号:
231-791-2
MDL编号:
MFCD00011332
UNSPSC代码:
41116107
PubChem化学物质编号:
329798917
NACRES:
NA.24

$274.00

预计发货时间2025年4月21日详情

获取大包装报价

等级

certified reference material

质量水平

100

Agency

according to ASTM® D1480

保质期

limited shelf life, expiry date on the label

制造商/商品名称

Paragon Scientific Ltd

折射率

n20/D 1.34 (lit.)

沸点

100 °C (lit.)

mp

0 °C (lit.)

密度

0.9982 g/mL at 20 °C
0.9970 g/mL at 25 °C
1.000 g/mL at 3.98 °C (lit.)

应用

cleaning products
cosmetics
environmental
flavors and fragrances
food and beverages
industrial qc
personal care
petroleum

包装形式

mixture

SMILES字符串

O

InChI

1S/H2O/h1H2

InChI key

XLYOFNOQVPJJNP-UHFFFAOYSA-N

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一般描述

请注意，本页所示数值均为标称值。当前批次所有Paragon密度标准品的所有验证数据都可以Paragon Scientific网页上找到
该产品是认证参考物质(CRM)，符合国际BS EN ISO / IEC 17025标准认证

应用

纯水密度CRM标准品主要用于密度测量设备的校准。虽然常用于数字密度计验证，但并不限于此用途。

特点和优势

  • 由UKAS ISO 17025和ISO 17034认可实验室生产和验证
  • 相关不确定度+/- 0.01%
  • 认证密度值符合ASTM D1480要求
  • 防窃启包装保证运送安全
  • 符合ASTM D1193标准的2级(Type II)试剂水定义
  • 附带分析证书(CoA)，提供有关有效期和储存条件的信息，便于有效审计

法律信息

ASTM is a registered trademark of American Society for Testing and Materials

储存分类代码

10 - Combustible liquids

WGK

nwg

闪点(°F)

Not applicable

闪点(°C)

Not applicable

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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密度标准品(20℃)

水 Nuclease-Free Water, for Molecular Biology

Sigma-Aldrich

W4502

水

Susu Duan et al.
Nature communications, 5, 5029-5029 (2014-10-10)
Oseltamivir-resistant H1N1 influenza viruses carrying the H275Y neuraminidase mutation predominated worldwide during the 2007-2009 seasons. Although several neuraminidase substitutions were found to be necessary to counteract the adverse effects of H275Y, the order and impact of evolutionary events involved remain
Mary A Rodgers et al.
The Journal of experimental medicine, 211(7), 1333-1347 (2014-06-25)
Linear ubiquitination is a newly discovered posttranslational modification that is currently restricted to a small number of known protein substrates. The linear ubiquitination assembly complex (LUBAC), consisting of HOIL-1L, HOIP, and Sharpin, has been reported to activate NF-κB-mediated transcription in
Lydia E H Paul et al.
Organic & biomolecular chemistry, 13(3), 946-953 (2014-11-21)
Interactions between three hexacationic arene ruthenium metallaprisms, [(p-cymene)6Ru6(tpt)2(dhnq)3](6+), [(p-cymene)6Ru6(tpt)2(dhbq)3](6+) and [(p-cymene)6Ru6(tpt)2(oxa)3](6+), and a series of human proteins including human serum albumin, transferrin, cytochrome c, myoglobin and ubiquitin have been studied using NMR spectroscopy, mass spectrometry and circular dichroism spectroscopy. All
Yasushi Itoh et al.
PLoS pathogens, 10(6), e1004192-e1004192 (2014-06-20)
Highly pathogenic avian influenza (HPAI) viruses of the H5N1 subtype often cause severe pneumonia and multiple organ failure in humans, with reported case fatality rates of more than 60%. To develop a clinical antibody therapy, we generated a human-mouse chimeric
Hervé Marie-Nelly et al.
Nature communications, 5, 5695-5695 (2014-12-18)
Closing gaps in draft genome assemblies can be costly and time-consuming, and published genomes are therefore often left 'unfinished.' Here we show that genome-wide chromosome conformation capture (3C) data can be used to overcome these limitations, and present a computational
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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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