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• 00
  Preliminary
• 10
  Proposal
  • 10.99 1988-11-01
    New project approved
• 20
  Preparatory
  • 20.00 1988-11-01
    New project registered in TC/SC work programme
• 30
  Committee
  • 30.00 1989-10-01
    Committee draft (CD) registered
  • 30.99 1990-06-26
    CD approved for registration as DIS
• 40
  Enquiry
  • 40.00 1990-06-26
    DIS registered
  • 40.20 1991-02-21
    DIS ballot initiated: 12 weeks
  • 40.60 1991-09-01
    Close of voting
  • 40.99 1992-01-16
    Full report circulated: DIS approved for registration as FDIS
• 50
  Approval
  • 50.00 1992-03-12
    Final text received or FDIS registered for formal approval
  • 50.20 1992-05-29
    Proof sent to secretariat or FDIS ballot initiated: 8 weeks
  • 50.60 1992-05-29
    Close of voting. Proof returned by secretariat
• 60
  Publication
  • 60.60 1992-07-23
    International Standard published
• 90
  Review
  • 90.92 1993-08-04
    International Standard to be revised
• 95
  Withdrawal
  • 95.99 1997-10-16
    Withdrawal of International Standard

Revised by