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
COD500
COD 500 mg/L Calibration Standard
certified reference material
Synonym(s):
Chemical Oxygen Demand Reference Standard
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About This Item
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grade
certified reference material
CofA
current certificate can be downloaded
manufacturer/tradename
RTC COD500-100
concentration
in H2O
technique(s)
TOC: suitable
Quality Level
application(s)
environmental
format
matrix material
storage temp.
2-8°C
Related Categories
1 of 4
This Item | |||
|---|---|---|---|
| application(s) environmental | application(s) environmental | application(s) environmental | application(s) environmental |
| technique(s) TOC: suitable | technique(s) - | technique(s) - | technique(s) - |
| format matrix material | format matrix material | format matrix material | format matrix material |
| grade certified reference material | grade certified reference material | grade certified reference material | grade certified reference material |
| CofA current certificate can be downloaded | CofA current certificate can be downloaded | CofA current certificate can be downloaded | CofA certificate is enclosed in each package |
| manufacturer/tradename RTC COD500-100 | manufacturer/tradename RTC BOD500-100 | manufacturer/tradename RTC BOD1000-500 | manufacturer/tradename RTC BOD200-100 |
General description
Application
Features and Benefits
- Verified and qualified in an ISO/IEC 17025 and ISO 17034 accredited laboratory
- Traceable to the SI and higher order standards from NIST
- Assigned value based on a purity determination by mass balance and gravimetrically prepared value
- Homogeneity assessed in accordance with ISO Guide 35
- Available in high-density polyethylene bottles of volumes 100 and 500 mL for an assured safe delivery
- Accompanied with a certificate of analysis (CoA) having information on the expiry date for an effective audit
- Prepared using deionized water as a solvent
Other Notes
related product
Storage Class
10 - 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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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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