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
59755
Ammonium Standard for IC
TraceCERT®, 1000 mg/L NH4+ in water (nominal concentration)
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About This Item
Produtos recomendados
grau
certified reference material
TraceCERT®
Nível de qualidade
linha de produto
TraceCERT®
concentração
1000 mg/L NH4+ in water (nominal concentration)
técnica(s)
ion chromatography: suitable
aplicação(ões)
environmental
food and beverages
Formato
single component solution
Descrição geral
Certified content incl. uncertainty and expiry date are given on the certificate.
Download your certificate at: http://www.sigma-aldrich.com.
Aplicação
Características e benefícios
- Produced under ISO/IEC 17025 and ISO 17034 accreditation
- Traceable to SI unit of mole through internationally accepted institutions such as NIST or BAM
- Accompanied by a comprehensive Certificate of Analysis (CoA) (up to four pages) with data on stability, density, homogeneity, the accuracy of concentration, uncertainty, and traceability
- Gravimetrically prepared using high-quality qNMR-characterized starting materials and qualified precision balances to ensure minimal uncertainty
- Rigorously tested through real-time stability studies to ensure accuracy and shelf life
- Available in an HDPE bottle, sealed in an aluminum bag
Ligação
Nota de análise
Informações legais
produto relacionado
Código de classe de armazenamento
12 - Non Combustible Liquids
Classe de risco de água (WGK)
nwg
Ponto de fulgor (°F)
Not applicable
Ponto de fulgor (°C)
Not applicable
Equipamento de proteção individual
Eyeshields, Gloves
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Metrosep C Supp 2 column and acidic binary IC eluent accurately determine ammonium in acidic solutions, meeting pharmacopeia regulations.
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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