Yes, density scaled by the temperature ratio.
I guess I'm curious why you would want the actual density at 7C or 13C, when the "threshold" values (e.g., 5.2 g/l or 6.2 g/l) are specified at 0C. Those would need to be scaled (on a per dive basis) for a valid comparison. It seems more intuitive to me to compute the density at 0 deg for an apples to apples comparison to fixed values/limits.
I guess I'm curious why you would want the actual density at 7C or 13C, when the "threshold" values (e.g., 5.2 g/l or 6.2 g/l) are specified at 0C. Those would need to be scaled (on a per dive basis) for a valid comparison. It seems more intuitive to me to compute the density at 0 deg for an apples to apples comparison to fixed values/limits.