Help in identifying parameters in pull down tests

1) What is Cellar in top mounted freezer - double door refrigerator ?

2) Can a domestic double door refrigerator achieve -25 degree centigrade in pull down test for 6 hours at 43 degree centigrade andd 75% Relative Humidity ?

3) What if Fresh food highlights -4 degree centigrade in pull down test report of 6 hours. Will it not spoil food at -4 below zero degree ?

4) Any one knowing the meaning of RoHS Compliance (not RoHS Compliant) ?

5) Is voltage and frequency not defined in pull down tests as per standards ?