You may need to comply with this standard if you intend to design and manufacture underground nonmetallic piping for flammable liquids.
This standard covers the primary carrier, secondary containment, integral primary / secondary containment, normal vent and vapour recovery, nonmetallic pipe, fittings, and systems (products) intended for use underground in the distribution of petroleum-base flammable and combustible liquids, alcohols, and alcohol-blended fuels as identified in this standard.