Previously

Now

• 00
  Preliminary
• 10
  Proposal
• 20
  Preparatory
  • 20.00 1985-12-01
    New project registered in TC/SC work programme
  • 20.20 1986-02-01
    Working draft (WD) study initiated
• 30
  Committee
  • 30.00 1986-03-01
    Committee draft (CD) registered
• 40
  Enquiry
• 50
  Approval
  • 50.00 1989-09-06
    Final text received or FDIS registered for formal approval
  • 50.20 1990-02-22
    Proof sent to secretariat or FDIS ballot initiated: 8 weeks
  • 50.60 1990-02-22
    Close of voting. Proof returned by secretariat
• 60
  Publication
  • 60.60 1990-06-07
    International Standard published
• 90
  Review
• 95
  Withdrawal
  • 95.99 1993-01-21
    Withdrawal of International Standard

Revised by