Adulterant/SG info...

I have a test TODAY and I have been clean for 3 weeks.
I did a little searching and found the only state certified testing site in the town where I will be tested.
Under the Employer Section of the site they have links to E-brochures about their services. I clicked on the brochure for Adulterant testing with TestSureâ?¢ and saw somthing interesting.
It says they will check for Specific Gravity ONLY (when
Creatinine < 20 mg/dL)
So, it seems to me if you weren't able to load up your levels of Creatinine in time but your SG is okay you are in pretty good shape.
Anybody else see it differently?
Thanks!