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主要文件

NIST1649B

城市灰尘

NIST® SRM® 1649b

别名:

城市灰尘

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About This Item

UNSPSC代码:
41116107
NACRES:
NA.24
价格与库存信息目前不能提供

等级

certified reference material

质量水平

100

包装

pkg of 2 g

制造商/商品名称

NIST®

应用

industrial hygiene

包装形式

matrix material

相关类别

一般描述

1个单位的SRM 1649B包含一瓶1 g碳酸锶粉末。

SRM 1649B _SDS

SRM 1649B _CoA

应用

城市灰尘标准参考物质（SRM）用于评估对大气颗粒物和相似基质中的多环芳烃（PAH）、硝基取代PAH（nitro-PAH）、多氯联苯（PCB）同类物、氯化杀虫剂和无机成分进行测定的无机分析方法。

特点和优势

  • 随附证书记录了PAH、硝基PAH、PCB同系物、氯化杀虫剂和无机成分的NIST认证值和非认证值。   
  • 认证值可追溯至质量分率的国际单位制(SI)和SI单位。
  • NIST 证书随附储存、使用和维护说明。

法律信息

NIST is a registered trademark of National Institute of Standards and Technology
SRM is a registered trademark of National Institute of Standards and Technology

储存分类代码

13 - Non Combustible Solids

WGK

WGK 3

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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Questions

1–2 of 2 Questions  

  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

      Helpful?

  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

      Helpful?

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