§ 751.403 Definitions.

The definitions in subpart A of this part apply to this subpart unless otherwise specified in this section.

2,4,6-TTBP means the chemical substance 2,4,6-tris(tert-butyl)phenol (CASRN 732–26–3).

2,4,6-TTBP oil and lubricant additives means any 2,4,6-TTBP-containing additive to a product of any viscosity intended to reduce friction between moving parts, whether mineral oil or synthetic base, including engine crankcase and gear oils and bearing greases. 2,4,6-TTBP oil and lubricant additive does not include hydraulic fluid and other oils whose primary purpose is not friction reduction.