means an employee who is engaged in any one or more of the following duties:
a) affixing postage stamps to letters, parcels or other articles;
b) affixing rubber stamps or serial numbers where discretion is not required;
c) assisting an artisan by holding articles or tools or working with the artisan without making independent use of any tools;
d) assisting on vehicles, otherwise than driving, guarding or repairing such vehicles, carrying, lifting, storing, moving, loading, unloading, opening or closing goods or parcels;
e) cleaning or washing premises, doors, windows, equipment, tools, plant, machinery, furniture, vehicles, containers or other articles, and includes the polishing of floors, furniture or vehicles or the brushing of mats or the cleaning of mats by means of a machine;
f) cooking rations or making tea or similar beverages for employees, including serving them, or making tea or other refreshments for the employer or the employer’s guests, including the serving thereof;
g) delivering or conveying messages, letters, goods or parcels on foot, or by any means excluding motor vehicles;
h) feeding or tending animals;
i) filling fuel tanks or filling or draining oil sumps;
j) gardening;
k) oiling or greasing vehicles, plant or machinery;
l) opening or closing doors or windows;
m) pushing or pulling vehicles otherwise than by means of mechanical equipment;
n) removing refuse or ashes;
o) removing, replacing, changing wheels, tyres or tubes, or repairing or pumping tyres or tubes;
p) removing, topping up or replacing batteries;
q) replacing towels, soap or toilet paper;
r) stamping or stenciling containers or parcels where discretion is not required;
s) washing or ironing overalls, uniforms or protective clothing;
t) whitewashing, cleaning or disinfecting kennels, stables, outbuildings or toilets.