Magnetic separation

All materials possess magnetic properties. Substances that have a greater permeability than air are classified as paramagnetic; those with a lower permeability are called ...

Ball-Norton magnetic separator

Mining; General mining; Mineral mining

Dry separator for coarse ore, in which one or two nonmagnetic drums rotate outside a series of fixed magnets alternating in polarity.

Wetherill's magnetic separator

Mining; General mining; Mineral mining

An apparatus for separating magnetic minerals from nonmagnetic minerals. It consists of two flat belts, the upper of which is the wider, run parallel to each other and over long ...

Ding's magnetic separator

Mining; General mining; Mineral mining

In its earlier form, a mineral separator to which the material was fed by a vibrating conveyor and passed through successive zones of magnetic influence. The zones were covered by ...

benchmark response (BMR)

Agricultural chemicals; Pesticides

A designated level or percent of response relative to the control level of response used in calculating a BMD.

best management practices (BMP)

Agricultural chemicals; Pesticides

Procedures or controls other than effluent limitations to prevent or reduce pollution of surface water (includes runoff control, spill prevention, and operating procedures).

BMD10

Agricultural chemicals; Pesticides

Benchmark Dose associated with a 10% response adjusted for background. For example, these BMD(10) values are doses expected to produce a 10% reduction in brain cholinesterase ...

comparative effect level (CEL)

Agricultural chemicals; Pesticides

Dose by which potency of chemicals may be compared; e.g. the dose causing a maximum of 15% cholinesterase inhibition.

confidential business information (CBI)

Agricultural chemicals; Pesticides

Information that contains trade secrets, commercial or financial information, or other information that has been claimed as confidential by the submitter.