Lifting operations and equipment safety. JPR 1700.1 8.5-1 Rev. J, Change 2 (August 2011) Verify this is the correct version before you use it by checking the on-line version. This could be you . . . A crane load fell 3 feet from a 20-ton overhead crane hook. The operator was concentrating. on the load itself and not on the path of travel. A section of the hoist rope hung up on an air.
| Reference.com. https://www.reference.com/vehicles/weight-hydraulic-oil-per-gallon-4aed52915a98a07d. A gallon of hydraulic fluid weighs 7.2 pounds. It is slightly less dense than water, which weighs 8.2 pounds per gallon.
1 So a gallon of salt water weighs 8.556 lbs.  That's a common expression. A pint is 16 fluid ounces and 16 fluid ounces of water weighs approximately 16 dry ounces. Two pints to the quart, four quarts to the gallon means eight pints to the gallon, so a gallon weighs about eight pounds. But that only applies to FRESH water. Salt water has a whole range, depending on how much salt is dissolved in the water. So you'd have to add the weight of the dissolved salt.