[Nhcoll-l] Teststrips for formalin

[Esther Dondorp]

Dear all,

We have a test from Quantofix (Macherey-Nagel) with teststrips that get
darker when there is more formaldehyde in the solution.

This test gives you mg/L HCHO, and I would like to know how to translate
this to percentages of formalin.

For example, what is the percentage of formalin when the test result is 100
mg/L HCHO formaldehyde.

Is there another way to easily test the formalin percentage of a solution?

Many thanks!

Esther Dondorp

Collection manager Reptiles and Amphibians
Naturalis Biodiversity Center
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