ISO-11540 Complete Document History
Writing and marking instruments - Specification for caps to reduce the risk of asphyxiation

Complete Current Edition:
   3RD EDITION - Specification for caps to reduce the risk of asphyxiation - Aug. 1, 2021

Obsolete Revision Information:
   2ND EDITION - Writing and marking instruments - Specification for caps to reduce the risk of asphyxiation - March 15, 2014
   1ST EDITION - Safety requirements - Sept. 1, 1993