Products that are listed as a ‘Certified Reference Material’ are tested against certain agency specifications and standards, such as the USP, JP, EP, or NIST. Product described as ‘Analytical Standards’ are tested for use in specific applications using internal specifications and testing standards.
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grade
certified reference material
Agency
suitable for SM 4500 - NH3
CofA
current certificate can be downloaded
manufacturer/tradename
RTC QCI-1370
concentration
in H2O
technique(s)
UV/Vis spectroscopy: suitable
application(s)
environmental
food and beverages
format
matrix material
storage temp.
2-30°C
Related Categories
General description
This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.
Other Notes
Values of analytes vary lot to lot. Some lots may not contain all analytes.
Storage Class Code
12 - Non Combustible Liquids
WGK
nwg
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Choose from one of the most recent versions:
Certificates of Analysis (COA)
Lot/Batch Number
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This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.
This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.
This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.
This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.
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What is the difference between "certified reference material" and "analytical standard" ? Can I consider this product as an analytical standard ? Is it stated as such on the CoA ?
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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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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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What solvent is this solution in, if any?
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As mentioned in the 'PROPERTIES' section, this product is an ammonia solution in water.
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