ISO 4643:1992

Moulded plastics footwear — Lined or unlined poly(vinyl chloride) boots for general industrial use — Specification

Specifies requirements, physical properties and marking. Gives the measurement of thickness (Annex A), the determination of the resistance to flexing of the upper material (Annex B), the flexing test of soling material (Annex C) and boot heights (Annex D).