R 325.60704 Warning symbol.

Rule 4. (1) An employer shall ensure that the warning symbol for radio frequency radiation hazards consists of a red isosceles triangle above an inverted black isosceles triangle, separated and outlined by an aluminum color border. The words "Warning--Radio-Frequency Radiation Hazard" shall appear in the upper triangle. See Figure G-11. (2) American national standard safety color code for marking physical hazards and the identification of certain equipment, Z53.1-1953, shall be used for color specification. All lettering and the border shall be of aluminum color. ANSI Z53.1-1953 is adopted by reference in this rule. Printed copies of ANSI Z53.1-1953 are available from Global Engineering Documents, 15 Inverness Way East, Englewood, Colorado 80112, telephone number 1-800-854-7179, website: www.global.ihs.com, at a cost as of the time of adoption of these rules of $25.00 or is available for inspection at the Michigan Department of Consumer and Industry Services, Standards Division, 7150 Harris Drive, P.O. Box 30643, Lansing, Michigan 48909. (3) The inclusion and choice of warning information or precautionary instructions is at the discretion of the user. If information is included, then the information shall appear in the lower triangle of the warning symbol. (4) Figure G-11 reads as follows: