콘텐츠로 건너뛰기
Merck
모든 사진(1)

주요 문서

NIST1648A

Urban particulate matter

NIST® SRM® 1648a

동의어(들):

City Dust Sample

로그인조직 및 계약 가격 보기

크기 선택

2 G
₩2,523,899

₩2,523,899

출고 가능일2025년 4월 24일세부사항

벌크 견적 요청
모든 사진(1)

크기 선택

보기 변경
2 G
₩2,523,899

About This Item

UNSPSC 코드:
41116107
NACRES:
NA.24

₩2,523,899

출고 가능일2025년 4월 24일세부사항

벌크 견적 요청

Grade

certified reference material

Quality Level

100

포장

pkg of 2 g

제조업체/상표

NIST®

응용 분야

industrial hygiene

형식

matrix material

관련 카테고리

일반 설명

This Standard Reference Material (SRM) is atmospheric particulate matter collected from St. Louis, MO area, in a baghouse specially designed for this purpose. The values of the constituents in SRM are reported on a dry-mass basis; however, the material “as received” contains residual moisture. The particle size distribution of SRM 1648a was obtained using a commercial laser diffraction instrument manufactured by Malvern Instruments. The particulate matter was measured in aqueous suspension and is detailed in “Supplemental Information for SRM 1648a.”

The certified values are based on the agreement of results from two or more chemically independent analytical techniques obtained at NIST and collaborating expert laboratories. The certification of SRM 1648a is valid, within the measurement uncertainty specified, provided the SRM is handled and stored in accordance with the instructions given in the “Instructions for Storage and Use”.

SRM 1648A_CERT

SRM 1648A_SDS

애플리케이션

It is intended primarily for use as a quality control material and in the evaluation of methods used in inorganic analysis and for the determination of selected polycyclic aromatic hydrocarbons (PAHs), nitro-substituted PAHs (nitro-PAHs), polychlorinated biphenyl (PCB) congeners, and chlorinated pesticides in atmospheric particulate material and similar matrices.

특징 및 장점

  • A unit of SRM 1648a consists of a bottle containing 2 g of atmospheric particulate matter
  • Information on product description, disposal, and transportation is available in the accompanying MSDS
  • The enclosed NIST certificate contains details on the expiry date, warning to users, instructions for right storage and use, preparation, and analysis of the RM

법적 정보

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

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

가장 최신 버전 중 하나를 선택하세요:

시험 성적서(COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our 문서 section.

도움이 필요하시면 연락하세요. 고객 지원 부서

이 제품을 이미 가지고 계십니까?

문서 라이브러리에서 최근에 구매한 제품에 대한 문서를 찾아보세요.

문서 라이브러리 방문

이미 열람한 고객

Slide 1 of 2

1 of 2

Organic contaminants in house dust NIST® SRM® 2585

NIST2585

Organic contaminants in house dust

vibrant-m

NISTRM8786

Filter blank for RM 8785

Ji Young Kim et al.
Antioxidants (Basel, Switzerland), 10(1) (2020-12-31)
Oligodendrocytes, myelin-forming cells in the brain, are vulnerable to oxidative stress. Recent work indicates that air pollution causes demyelinating diseases such as multiple sclerosis. However, little is known about the mechanism of toxicity of ultrafine particulate matters (PMs) to oligodendrocytes.

질문

1–3 / 3 질문  

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

    1 답변

    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

      도움이 되었습니까?

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

    1 답변

    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

      도움이 되었습니까?

  3. Hello. Would the autoclaving of 1648a particles result in different states or reactivity when treated with cells?

    1 답변

    1. This product should not be heated beyond 30 °C and therefore should not be autoclaved. This product is intended for use as a GCMS standard and has not been assessed for other applications.

      도움이 되었습니까?

후기

평점 값 없음

활성 필터

자사의 과학자팀은 생명 과학, 재료 과학, 화학 합성, 크로마토그래피, 분석 및 기타 많은 영역을 포함한 모든 과학 분야에 경험이 있습니다..

고객지원팀으로 연락바랍니다.