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Question/Answer

I need the recipe for the COD vials Cat # B1015 from an audit finding to show they are composed as the method states. Do you have a certifciate of conformance that states the composition?

As is stated on the product page, this item complies with Standard Methods 5220D. Our digestion solution is 10.216 g potassium dichromate, 167 mL sulfuric acid, and 33.3 g mercuric sulfate per 1000 mL. The sulfuric acid reagent contains 5.5 g silver sulfate per kg sulfuric acid. The reagents are added to the tube in the proper proportion to react with 2.0 mL sample.

Do the COD vials come with mercuric sulfate?

These COD vials do have mercuric sulfate as one of their components. If you wish to use vials without mercuric sulfate please use item B0015.

Can this test tube be read by a DR2000 machine?

The DR2000 should be pre-programmed with the COD method. To use the COD vials with this instrument, you will need to use the COD Vial Adapter. Based off page 23 of the manual, it looks like the pre-programmed COD methods are Method # 430 (COD limit 200 ppm) and Method # 435 (COD limit 2000 ppm). For the B1015 COD vials, which have a range of 0-1500 mg/L, I would use Method # 435.

do these vials contain mercuric sulfate to allow the complex of any chlorides in my sample?

This product does contain mercuric sulfate. It can complex up to 2000ppm of chloride in your sample.

how do i obtain a copy of the sds for B1015 and B1010

You can find the SDS on our website under the Technical tab or by following this link: http://www.envexp.com/sds

Can you tell me how much mercury (in ppm) each digestion vial contains? Thank you.

There is 6,750 ppm (mg/L) of mercury in each vial.

WHERE ARE THE SDS/MSDS?

All of our SDS forms can be found at the following link - http://www.envexp.com/sds \r\nFor COD vials, select \"COD Solutions\" and then the year 2014.

Need sds for product number B1010 and B1015

You can find the SDS for these products and others on our website at http://www.envexp.com/msds

Are the vials calibrated for accuracy

Each lot of vials is checked against a standard solution and against a competitor’s vials to ensure that they give the proper response after digestion.

to what level of chlorides is compensated before dilution is required

The vials contain enough mercuric sulfate to compensate for up to 2,000 mg/L chloride.

How much mercury is in the COD vials, 0-1500mg/L?

Each of these vials contain 27 mg Hg.

What is the shelf life of the COD vials?

5 years from the date of manufacture.

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