This appears to be old info. As of this edit:
Waste Acid .05 Bulk Acid (15) .38
Bulk Acid is now nearly half the weight of its constituent components (I'm assuming it actually *is* half, and the difference is a rounding issue). The bulk weight reduction isn't flat, though; there's only a 1/6 reduction in weight for Adhesive:
Excess Adhesive .03 Bulk Adhesive (10) .25
Suggest another table to lay out the weight reduction for each component (with which I'm happy to help)