HI 774 Cal standard with HI 736

[kevin_e]

Is the standard for 774 usable for the 736?

My standard was verified 0.4 ppm. When I read the standard and did the conversion on the 736 (ppb phosphorous x 3.066 / 1000) my reading was 0.37 and awfully close to the standard value.

 

[Doctorgori]

Interesting....I’ve always made sure I got the one for the Ultra Low...didn’t know the two where interchangeable with a simple conversion

 

[kevin_e]

Interesting....I’ve always made sure I got the one for the Ultra Low...didn’t know the two where interchangeable with a simple conversion

I am talking about the calibration fluid, not the reagent. The Phosphorus ULR measures phosphorus and pp and the calculation converts to ppm phosphate. It's the model before Hanna came out with the Phosphate ULR.

 

[taricha]

those two read what is quite likely the same color change chemistry (in different labeled packets) and just output different units. So yep.

 

[kevin_e]

those two read what is quite likely the same color change chemistry (in different labeled packets) and just output different units. So yep.

Those wefe my thoughts. The unit just does the math (or doesn't), as I see it.

 

[Randy Holmes-Farley Verified Community Expert]

I don't know the answer with certainty.