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Meeting regulations in any industry, standards are essential for periodically checking the accuracy of equipment pieces. By comparing against the known values, output readings detect errors present and inform personnel adjustments are required. Once the settings of the manual or automatic instruments have returned to zero, the re-established conditions will yield optimal working performance. Calibrating with concentrated standards eliminates the possibility that environmental changes will induce instrumental miscalculation when accuracy matters most.

Meeting regulations in any industry, standards are essential for periodically checking the accuracy of equipment pieces. By comparing against the known values, output readings detect errors present and inform personnel adjustments are required. Once the settings of the manual or automatic instruments have returned to zero, the re-established conditions will yield optimal working performance. Calibrating with concentrated standards eliminates the possibility that environmental changes will induce instrumental miscalculation when accuracy matters most.


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Supplier: Hach
Description: For accuracy checks in ammonia nitrogen determinations.

Catalog Number: (708-0006)
Supplier: Hach
Description: Turbidity, Stablcal® stabilized formazine standard, 4000 NTU, Type: Formazine, 5× 100 ml
UOM: 1 * 1 KIT


Catalog Number: (705-1122)
Supplier: Hach
Description: Calibration solutions for Lico spectral colorimeter.
UOM: 1 * 1 KIT


Supplier: Hach
Description: Standard solution for accuracy checks in total chromium determinations.

Supplier: Hach
Description: Standard solutions for accuracy checks in lead determinations.

Catalog Number: (HACH2415342)
Supplier: Hach
Description: For accuracy checks in quaternary ammonium compound (QAC) determinations.
UOM: 1 * 100 mL


Supplier: Hach
Description: System for Analytical Quality Assurance (AQA), consisting of one combined standard/spiking solution and two round robin test solutions.

Supplier: Hach
Description: Stablcal® calibration standards kit, for 2100 series portable turbidimeters. USEPA accepted for calibration purposes. Stablcal® stabilised formazin tu...

Supplier: Hach
Description: Stablcal® turbidity standards for all turbidimeters. USEPA accepted for calibration purposes. Stablcal® stabilised formazine turbidity standards are t...
Supplier: Hach
Description: The sodium chloride standard solutions are used for calibrating conductivity meters and also used for accuracy checks.

Supplier: Hach
Description: For calibrations/accuracy checks on conductivity/salinity meters.

Supplier: Hach
Description: For determination of ammonia and total kjeldahl nitrogen by the nessler method. Solutions are available in self-contained dropping bottle.

Supplier: Hach
Description: For accuracy checks in chlorine determinations. Lot specific concentration displayed on label.

Supplier: Hach
Description: Standard solutions for accuracy checks in silica determinations.

Supplier: Hach
Description: COD standard solution (NIST), 1000 mg/l, : N/A

Supplier: Hach
Description: Standard solution for accuracy checks in copper determinations.

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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us on +353 1 88 22222.
Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us on +353 1 88 22222.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. If you need further assistance, email VWR Regulatory Department at eurega_services@eu.vwr.com
-Additional Documentation May be needed to purchase this item. A VWR representative will contact you if needed.
This product has been blocked by your organisation. Please contact your purchasing department for more information.
The original product is no longer available. The replacement shown is available.
Product(s) marked with this symbol are discontinued - sold till end of stock. Alternatives may be available by searching with the VWR Catalog Number listed above. If you need further assistance, please call VWR Customer Service on +353 1 8822222.
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