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
TURB20
Turbidity 20 NTU Calibration Standard - Formazin
certified reference material
Synonym(s):
Formazin Turbidity Calibration Standard 20 NTU
Select a Size
PLN 576.00
PLN 766.00
PLN 862.00
About This Item
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grade
certified reference material
Quality Level
CofA
certificate is enclosed in each package
manufacturer/tradename
RTC TURB20-100
concentration
in H2O
application(s)
environmental
format
matrix material
storage temp.
2-8°C
Related Categories
1 of 4
This Item | TURB10 | TURB100 | TURB1 |
|---|---|---|---|
| application(s) environmental | application(s) environmental | application(s) environmental | application(s) environmental |
| 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 certificate is enclosed in each package | CofA certificate is enclosed in each package | CofA certificate is enclosed in each package | CofA certificate is enclosed in each package |
| manufacturer/tradename RTC TURB20-100 | manufacturer/tradename RTC TURB10-100 | manufacturer/tradename RTC TURB100-100 | manufacturer/tradename RTC TURB1-100 |
| concentration in H2O | concentration in H2O | concentration in H2O | concentration in H2O |
General description
Application
Features and Benefits
- Gravimetrically prepared standard, 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, 500, and 1000 mL to assure 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 Code
12 - Non Combustible Liquids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Regulatory Listings
Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.
EU REACH Annex XVII (Restriction List)
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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