amspec is proud to provide professional inspection and testing of crude oil, petrochemicals, biofuels, diesel, ultra low sulphur diesel (ulsd), liquefied gas (lng, lpg) and jet fuel. boasting an extensive staff of highly trained and motivated inspectors. with offices throughout the united states and around the world, amspec can provide inspection services almost anywhere in the world with the same quality and reliability our customers have come to expect from us.