§ 69405.7. Particle Size or Fiber Dimension.

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(a) The particle size or fiber dimension hazard trait is defined as the existence of a chemical substance in the form of small particles or fibers or the propensity to form into such small-sized particles or fibers with use or environmental release.
(b) Evidence for the particle size or fiber dimension hazard trait includes, but is not limited to: measures of particle size less than or equal to 10 micrometers in mass median aerodynamic diameter for inhalation exposure, or less than 10 micrometers in any dimension for dermal or ingestion exposure, or fibers with a 3:1 aspect ratio and a width less than or equal to 3 micrometers.

HISTORY

1. New section filed 12-20-2011; operative 1-29-2012 (Register 2011, No. 51).

Note

Note: Authority cited: Sections 25256.1 and 59012, Health and Safety Code. Reference: Sections 25256.1 and 59012, Health and Safety Code.

                    
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