Water testing and sample temps

[Greg B.]

When testing water parameters does the temperature of the sample matter? And if it does why. I am thinking about taking a sample with me to work tomorrow and testing all parameters but not sure if the water temp will matter

 

[Randy Holmes-Farley Verified Community Expert]

Depends on the test.

Which ones are you asking about?

 

[Greg B.]

Depends on the test.

Which ones are you asking about?

Calcium alk mg phosphates and nitrates lol

 

[Randy Holmes-Farley Verified Community Expert]

Calcium alk mg phosphates and nitrates lol

Titration tests like alk, calcium and magnesium, no.

Color development tests (like phosphate and nitrate) may develop color at a rate that depends a bit on temp. If the test has a very specific reading time range, then a temp well outside of normal tank and room temperatures might miss the correct window. If you are in normal temp ranges and the kit does not specify a temp, then the effect is not likely to be important.