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/418/501/product-dating-information-06-25-mk.pdf
QC1593
Ammonia
certified reference material
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Product Name
Ammonia, certified reference material
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
Quality Level
Related Categories
1 of 4
This Item | QC1153 | QC1319 | QC1054 |
|---|---|---|---|
| application(s) environmental | application(s) environmental | application(s) environmental | application(s) environmental |
| technique(s) UV/Vis spectroscopy: suitable | technique(s) ion chromatography: suitable | technique(s) titration: suitable | technique(s) UV/Vis spectroscopy: suitable |
| format matrix material | format matrix material | format matrix material | format matrix material |
| Quality Level 300 | Quality Level 300 | Quality Level 300 | Quality Level 300 |
| grade certified reference material | grade certified reference material | grade certified reference material | grade certified reference material |
| storage temp. 2-30°C | storage temp. 2-30°C | storage temp. 2-30°C | storage temp. 2-30°C |
General description
Other Notes
Storage Class
12 - Non Combustible Liquids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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Related Content
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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How can I determine the shelf life / expiration / retest date of this product?
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Helpful?
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concentration of the ammonia CRM is not mentioned anywhere
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This product is tested for Nitrogen concentration as a measure of Ammonia content. The concentration varies from lot to lot and is reported in the Certificate of Analysis on an 'as is' basis. A review of recent lots indicates a general range of 0.6 - 1.4 mg/L Ammonia as N. Please see the link below to review a lot specific Certificate:
https://www.sigmaaldrich.com/product/sial/qc1593#product-documentationHelpful?
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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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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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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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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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