Now

• 00
  Preliminary
• 10
  Proposal
• 20
  Preparatory
• 30
  Committee
• 40
  Enquiry
• 50
  Approval
• 60
  Publication
  • 60.60 1976-04-01
    International Standard published
• 90
  Review
  • 90.20 1981-06-15
    International Standard under systematic review
  • 90.60 1981-06-15
    Close of review
  • 90.93 1981-06-15
    International Standard confirmed
  • 90.99 1991-12-18
    Withdrawal of International Standard proposed by TC or SC
• 95
  Withdrawal
  • 95.20 1991-12-19
    Withdrawal ballot initiated
  • 95.99 1992-02-26
    Withdrawal of International Standard