Customer's device didn't work well at low temperatures ( -30 C ) and they found that problem were with ADR01BRZ.
Tested stand along IC at -30C temperature loaded on 1.1k resistor (9.1 mA) with input voltage 15 V, output was 9.990 to 9.991 V.
initial accuracy is 9.995 -10.005 V, temperature drift 3ppm/C, delta 55C will cause -1.65 mV drift.
Worst case must be 9.995-0.00165 = 9.993 V.
Any idea ? what else could affect ?