Halal - Halal is an Arabic term meaning 'permissible'. In English it frequently refers to food that is permissible according to Islamic law. A variety of substances are considered forbidden which includes pork and pig based products, blood and all intoxicants, including alcohol. The assessment of whether a lubricant is suitable for Halal is very similar to that for Kosher. The ingredients of the oil or grease are reviewed technically and the manufacturing facility audited for its internal quality processes and potential cross contamination. Certificates of conformity are normally issued.