Now

• 00
  Preliminary
• 10
  Proposal
• 20
  Preparatory
  • 20.00 1987-09-01
    New project registered in TC/SC work programme
• 30
  Committee
  • 30.00 1988-03-01
    Committee draft (CD) registered
  • 30.20 1989-09-01
    CD consultation initiated
  • 30.99 1989-10-01
    CD approved for registration as DIS
• 40
  Enquiry
  • 40.00 1990-01-16
    DIS registered
  • 40.20 1990-01-25
    DIS ballot initiated: 12 weeks
  • 40.60 1990-08-01
    Close of voting
• 50
  Approval
  • 50.00 1991-04-15
    Final text received or FDIS registered for formal approval
  • 50.20 1991-04-19
    Proof sent to secretariat or FDIS ballot initiated: 8 weeks
  • 50.60 1991-04-19
    Close of voting. Proof returned by secretariat
• 60
  Publication
  • 60.60 1991-05-23
    International Standard published
• 90
  Review
  • 90.20 1995-11-30
    International Standard under systematic review
  • 90.60 1995-12-15
    Close of review
  • 90.93 1995-12-15
    International Standard confirmed
  • 90.20 2000-06-08
    International Standard under systematic review
  • 90.60 2000-11-30
    Close of review
  • 90.93 2001-03-30
    International Standard confirmed
  • 90.20 2006-03-01
    International Standard under systematic review
  • 90.60 2006-03-22
    Close of review
  • 90.93 2020-08-21
    International Standard confirmed
• 95
  Withdrawal