Despite bonding and grounding, solvent explosion. NPRA defines conductive solvent at 10,000 pS/m. US Chemical Safety Board recommends a small amount of antistatic additive will effectively achieve this, but many non-conductive solvent users refuse to raise conductivity to 10,000 pS/m. Why? There is no code! Toluene, Xylene, and other non-conductive/low flashpoint solvents should be additised to 10,000 pS/m.