making MMS wrong measurements

Hola, estoy teniendo algunos quebraderos de cabeza a la hora de crear MMS a partir de polvo.

Hello, It would be very nice if you can help me with this problema.

I have always purchased pre-made MMS and I have always had right measurements, but some weeks ago I purchased 1 kg. of NaClO2 80%. I made MMS 28% (22,4%) and citric acid 50% with distilled water.

Measurements with three drops of MMS are weaker than with the pre-made MMS I usually purchase (between 1000-1500 in 10 ml distilled water). Yesterday I made some CDS with the glass method. 14 hours later the measure says 1000-1500 ppm when it should be 3000 ppm at least

So I didn't understand anything, I have put a ClO2 test strip inside the NaClO2 made by me, it says it has a lot of ClO2. When I do the same thing with the pre-made MMS I usually purchase, it barely meaure any ClO2. I am absolutely lost.

Maybe someone had the same problem or understand what is happening here and can help me?

Thank you in advance.

bump.

I tryed again making MMS from the start, but without warming the mixture, and this way I have accomplished it right.

The following question is, do you need to warm the mixture if you are able to mix it at ambient temperature. Maybe the mixture loses strength if you warm it.