Division 6 PROCEDURE FOR THE ALIGNMENT OF A CANDIDATE LABORATORYF1

One reference laboratory ( l ) of the network shall calculate the linear regression function of the candidate laboratory ( c ), A2 _c and B2 _c , as follows:

RRC _m,l = A2 _c × RRC _m,c + B2 _c

where:

RRC _m,l

is the measured value of the rolling resistance coefficient by the reference laboratory ( l ) (including temperature and drum diameter corrections)

RRC _m,c

is the measured value of the rolling resistance coefficient by the candidate laboratory ( c ) (including temperature and drum diameter corrections)

The aligned RRC of tyres tested by the candidate laboratory is calculated as follows:

RRC = (A1 _l × A2 _c ) × RRC _m,c + (A1 _l × B2 _c + B1 _l )