One Megohm, or “One Meg,” equals 1 million ohms or 1.0 x 10E6. The exponent 6 refers to the number of zeros after the 1. This measure is generally considered the maximum electrical resistance for a conductive flooring specification.

The telecom industry and Federal Aviation Administration have determined that floors with resistance levels below 1 x 10E6 (one megohm) are unacceptable for use near energized equipment. Industry standards—Motorola R56 and FAA 019f—prohibit the use of flooring with electrical resistance below 1 x 10E6 ohms.