Specifications include, but are not limited to: a. Remove the extinguisher from hanger, bracket, or cabinet and visually examine it for damage. b. Verify that the hanger, bracket, or cabinet is the proper one fothe extinguisher ; c. Ensure that the hanger, bracket, or cabinet is secure, undamaged, and properly mounted. d. Ensure that the nameplate operating instructions are legible and facing outward. e. Confirm that the extinguisher model is not subject to recall and is not obsolete. f. Check extinguisher records to determine internal examination and hydrostatic test intervals. g. Thoroughly examine cylinder for dents, damage, repairs, or corrosion. h. Remove the pull pin to ensure that it functions properly and is not damaged or corroded i. Examine the handle and levers to ensure that they are undamaged and operable. j. Ensure that the valve stem is correctly extended and not corroded or damaged.