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Now

• 00
  Preliminary
• 10
  Proposal
• 20
  Preparatory
• 30
  Committee
• 40
  Enquiry
• 50
  Approval
• 60
  Publication
  • 60.60 1976-05-01
    International Standard published
• 90
  Review
  • 90.20 1990-11-15
    International Standard under systematic review
  • 90.60 1991-03-01
    Close of review
  • 90.20 1995-11-30
    International Standard under systematic review
  • 90.60 1996-07-15
    Close of review
  • 90.93 1996-08-05
    International Standard confirmed
  • 90.92 1998-03-20
    International Standard to be revised
• 95
  Withdrawal
  • 95.99 2000-03-02
    Withdrawal of International Standard

Revised by