Now

• 00
  Preliminary
• 10
  Proposal
• 20
  Preparatory
• 30
  Committee
• 40
  Enquiry
• 50
  Approval
• 60
  Publication
  • 60.60 1972-06-01
    International Standard published
• 90
  Review
  • 90.20 1991-11-30
    International Standard under systematic review
  • 90.60 1992-06-30
    Close of review
  • 90.93 1992-10-23
    International Standard confirmed
  • 90.20 1996-11-15
    International Standard under systematic review
  • 90.60 1997-07-15
    Close of review
  • 90.92 1997-12-01
    International Standard to be revised
• 95
  Withdrawal
  • 95.99 2000-03-24
    Withdrawal of International Standard

Revised by