"External standard reference" means a simulator test performed on the approved instrument, using a known alcohol/water solution, to verify the accuracy of the approved instrument.
N.H. Admin. Code § Saf-C 7102.15
"External standard reference" means a simulator test performed on the approved instrument, using a known alcohol/water solution, to verify the accuracy of the approved instrument.
N.H. Admin. Code § Saf-C 7102.15