To order chemicals, medical devices, or other restricted products please provide ID that includes your business name & shipping address via email [email protected] or fax 484.881.5997 referencing your VWR account number. Acceptable forms of ID are:
- • State issued document with your organization's Federal Tax ID Number
- • State issued document with your organization's Resale Tax ID Number
- • City or County issued Business License
- • State Department of Health Services License
- • Any other ID issued by the State that includes the business name & address
* ATTN: California Customers may require additional documentation as part of the CA Health & Safety Code. Products that fall under this regulation will be placed on a mandatory 21-day hold after documentation is received. VWR will not lift restrictions for residential shipping addresses.
Specifications
- Chemical method:Indigo carmine
- Description:Oxygen, dissolved Vacu-vials Instrumental Kit
- Cat. no.:CXK-7513
- Range:0 - 15.0 ppm
- Supplier No.:K-7513
Specifications
About this item
Dissolved Oxygen in water test kits for environmental and drinking water applications (ppm range) employ the indigo carmine method. The reduced form of indigo carmine reacts with D.O. to form a blue product. The indigo carmine methodology is not subject to interferences from temperature, salinity, or dissolved gases such as sulfide, which plague users of D.O. meters.
- Analysis Time: 2 minutes
The level of dissolved oxygen in natural waters is often a direct indication of quality, since aquatic plants produce oxygen, while microorganisms generally consume it as they feed on pollutants. At low temperatures the solubility of oxygen is increased; during summer, saturation levels can be as low as 4 ppm. Dissolved oxygen (D.O.) is essential for the support of fish and other aquatic life and aids in the natural decomposition of organic matter. Waste treatment plants that employ aerobic digestion must maintain a level of at least 2 ppm dissolved oxygen.