Now

• 00
  Preliminary
• 10
  Proposal
• 20
  Preparatory
• 30
  Committee
  • 30.00 1976-01-01
    Committee draft (CD) registered
• 40
  Enquiry
  • 40.00 1977-10-01
    DIS registered
  • 40.20 1978-04-01
    DIS ballot initiated: 12 weeks
  • 40.60 1978-10-01
    Close of voting
• 50
  Approval
  • 50.00 1980-07-01
    Final text received or FDIS registered for formal approval
  • 50.20 1981-02-01
    Proof sent to secretariat or FDIS ballot initiated: 8 weeks
  • 50.60 1981-02-01
    Close of voting. Proof returned by secretariat
• 60
  Publication
  • 60.60 1981-02-01
    International Standard published
• 90
  Review
  • 90.93 1986-10-01
    International Standard confirmed
• 95
  Withdrawal
  • 95.99 1991-02-01
    Withdrawal of International Standard