cool_hardware52
Contributor
I've weighed quite a number of scuba weights on an accurate, repeatable, high resolution digital scale.
Most commercial soft weight pouches are pretty close to the claimed weight.
I would expect that part of the soft weight production process involves some automated means of dispensing or batching the shot.
In my experience many cast weights are under weight. The reason is simple, the mold was not fully filled. Hand ladled hot lead induces inaccuracies and so does "stretching for yield", in other words you can cast more "4 lbs" weights if you don't completely fill the mold.
I recommend that anytime somebody tests the buoyancy of their exposure suit that they actually weigh the total ballast used, and not rely on summing the marked values on the weights.
I have a couple "4 lbs" block weights that weigh 2 lbs 12 ounces...........
Tobin
Most commercial soft weight pouches are pretty close to the claimed weight.
I would expect that part of the soft weight production process involves some automated means of dispensing or batching the shot.
In my experience many cast weights are under weight. The reason is simple, the mold was not fully filled. Hand ladled hot lead induces inaccuracies and so does "stretching for yield", in other words you can cast more "4 lbs" weights if you don't completely fill the mold.
I recommend that anytime somebody tests the buoyancy of their exposure suit that they actually weigh the total ballast used, and not rely on summing the marked values on the weights.
I have a couple "4 lbs" block weights that weigh 2 lbs 12 ounces...........
Tobin