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SD Codefree control solution

sanguine

Well-Known Member
Messages
3,340
Location
Devon
Type of diabetes
Type 2
Treatment type
Diet only
Dislikes
Intolerance, career politicians, reality TV and so-called celebrity culture, mobile phones in the quiet carriage.
I just bought some SD control solution to check the accuracy and consistency of my meter, and was a bit disappointed to find that it was not a specific value standard solution, but just a value within the stated range of the strips (M, 5.7 -8.2 apparently in my case). So not much use really apart from checking meter variability.

I tested it once earlier this morning, and got 6.5. Then just now I blew 5 strips in rapid succession and got 6.1, 6.1, 6.0, 6.2, 6.1.

Is it valid to suggest that the meter is better than +/- 20% based on this very small sample, or is it no more useful than the check strip that just tells you that the electronics are functioning?

Is there any way to make a 'standard solution' of known value?
 
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