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• 00
  Preliminary
• 10
  Proposal
• 20
  Preparatory
  • 20.00 1981-12-01
    New project registered in TC/SC work programme
  • 20.20 1982-01-01
    Working draft (WD) study initiated
• 30
  Committee
  • 30.00 1984-02-01
    Committee draft (CD) registered
  • 30.99 1984-11-01
    CD approved for registration as DIS
  • 30.00 1985-01-08
    Committee draft (CD) registered
  • 30.99 1985-01-16
    CD approved for registration as DIS
• 40
  Enquiry
  • 40.00 1985-01-29
    DIS registered
  • 40.20 1985-12-26
    DIS ballot initiated: 12 weeks
  • 40.60 1986-07-01
    Close of voting
• 50
  Approval
  • 50.00 1987-02-02
    Final text received or FDIS registered for formal approval
  • 50.20 1987-03-26
    Proof sent to secretariat or FDIS ballot initiated: 8 weeks
  • 50.60 1987-03-26
    Close of voting. Proof returned by secretariat
• 60
  Publication
  • 60.60 1987-05-14
    International Standard published
• 90
  Review
  • 90.20 1991-11-30
    International Standard under systematic review
  • 90.60 1992-06-30
    Close of review
  • 90.93 1993-11-22
    International Standard confirmed
  • 90.20 1998-05-31
    International Standard under systematic review
  • 90.60 1998-10-31
    Close of review
  • 90.93 1999-01-18
    International Standard confirmed
  • 90.92 2002-07-01
    International Standard to be revised
  • 90.93 2002-07-01
    International Standard confirmed
  • 90.92 2007-04-06
    International Standard to be revised
• 95
  Withdrawal
  • 95.99 2011-10-28
    Withdrawal of International Standard

Revised by