Is my Spray Chalk Can empty?

Using a Mini Weighing Scales (Ebay ~ £7, Range 0.1 to 500g)Remove the Spray Can cap and place the body on the scales. If it reads < 11g the Can is empty – Full is about 21g.

You can also check Indoor and outdoor Jacks

Indoor: between 382g and 453g, Law: 53. 2. 2

Outdoor: between 225g and 285g, Law: 52. 2. 2