(a) No solvents shall be stored or used other than those identified in the accepted installation plans and specifications.

(b) Solvents shall be stored only in appropriately labeled and tightly closed containers of substantial and durable construction and not exceeding 55 gallons capacity.

(c) The transfer of solvents by use of pails or similar open containers is prohibited.

(d) Filter and other residues and sludges stored pending safe disposal shall be kept in tightly covered leakproof containers not exceeding 55 gallons capacity.