Previously

Now

• 00
  Preliminary
• 10
  Proposal
• 20
  Preparatory
  • 20.00 1988-02-01
    New project registered in TC/SC work programme
  • 20.20 1988-06-01
    Working draft (WD) study initiated
• 30
  Committee
  • 30.00 1989-01-25
    Committee draft (CD) registered
  • 30.99 1989-02-08
    CD approved for registration as DIS
• 40
  Enquiry
  • 40.00 1989-02-08
    DIS registered
  • 40.20 1989-03-02
    DIS ballot initiated: 12 weeks
  • 40.60 1989-09-01
    Close of voting
• 50
  Approval
  • 50.00 1991-02-01
    Final text received or FDIS registered for formal approval
  • 50.20 1991-02-15
    Proof sent to secretariat or FDIS ballot initiated: 8 weeks
  • 50.60 1991-02-15
    Close of voting. Proof returned by secretariat
• 60
  Publication
  • 60.60 1991-06-13
    International Standard published
• 90
  Review
• 95
  Withdrawal
  • 95.99 1993-12-23
    Withdrawal of International Standard

Revised by