U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 28, 2025
Formula. To every 100 gallons of alcohol of not less than 185 proof add:
Five gallons of toluene or 5 gallons of heptane.
Regulations most recently checked for updates: Aug 28, 2025
Formula. To every 100 gallons of alcohol of not less than 185 proof add:
Five gallons of toluene or 5 gallons of heptane.