milligrams per kilogram — Oil & Gas Glossary
On the basis of weight, the equivalent of parts per million, usually applied to small amounts of one solid admixed with another solid, such as 100 mg/kg of siderite in barite, the same as 100 ppm.
On the basis of weight, the equivalent of parts per million, usually applied to small amounts of one solid admixed with another solid, such as 100 mg/kg of siderite in barite, the same as 100 ppm.