Now

• 00
  Preliminary
• 10
  Proposal
• 20
  Preparatory
  • 20.00 1987-06-01
    New project registered in TC/SC work programme
  • 20.20 1987-07-01
    Working draft (WD) study initiated
• 30
  Committee
  • 30.00 1988-10-01
    Committee draft (CD) registered
  • 30.20 1989-07-01
    CD study initiated
  • 30.99 1990-06-01
    CD approved for registration as DIS
• 40
  Enquiry
  • 40.00 1991-01-18
    DIS registered
  • 40.20 1991-03-07
    DIS ballot initiated: 12 weeks
  • 40.60 1991-10-01
    Close of voting
• 50
  Approval
  • 50.00 1992-03-20
    Final text received or FDIS registered for formal approval
  • 50.20 1993-02-17
    Proof sent to secretariat or FDIS ballot initiated: 8 weeks
  • 50.60 1993-02-17
    Close of voting. Proof returned by secretariat
• 60
  Publication
  • 60.60 1993-05-13
    International Standard published
• 90
  Review
  • 90.92 1994-10-30
    International Standard to be revised
• 95
  Withdrawal
  • 95.99 1999-12-08
    Withdrawal of International Standard