Red Sea iodine test problem.

[SteveMM62Reef]

I’m having problems with the Red Sea Iodine Test, it seems like it indicates too fast. Goes to clear, quickly on the Sample, but not on the Standard bottle. They Reagents expire early next year. I always make sure the Caps, are secure, the bottle tips don’t get contaminate. Also kit is stored in Cool, Humidity controlled basement.

 

[taricha]

it seems like it indicates too fast. Goes to clear, quickly on the Sample, but not on the Standard bottle.

This would be the correct behavior if the kit is run on a sample with high iodine.
The color disappears faster the higher the Iodine level.