Adulterated Substance : Material which has, intentionally or unintentionally, either been contaminated with a foreign substance or not manufactured using good manufacturing practices
The Association of Petrochemicals Producers in Europe (APPE), The European petrochemical industry, Glossary of Terms on Chemical Safety for Use in IPCS Publications, van Nieuwenhuyse, Brussels 2006. http://www.petrochemistry.eu/glossary.html, (Petrochem Ind - Brit) {473}