Now

• 00
  Preliminary
• 10
  Proposal
• 20
  Preparatory
  • 20.00 1979-06-01
    New project registered in TC/SC work programme
  • 20.20 1981-12-01
    Working draft (WD) study initiated
• 30
  Committee
  • 30.00 1982-10-01
    Committee draft (CD) registered
  • 30.20 1984-10-01
    CD study initiated
  • 30.99 1985-04-01
    CD approved for registration as DIS
• 40
  Enquiry
  • 40.00 1986-02-26
    DIS registered
  • 40.20 1986-10-09
    DIS ballot initiated: 12 weeks
  • 40.60 1987-05-01
    Close of voting
  • 40.92 1988-06-01
    Full report circulated: DIS referred back to TC or SC
• 50
  Approval
  • 50.00 1989-05-26
    Final text received or FDIS registered for formal approval
  • 50.20 1989-12-14
    Proof sent to secretariat or FDIS ballot initiated: 8 weeks
  • 50.60 1989-12-14
    Close of voting. Proof returned by secretariat
• 60
  Publication
  • 60.60 1990-03-08
    International Standard published
• 90
  Review
  • 90.20 1994-11-30
    International Standard under systematic review
  • 90.60 1995-06-30
    Close of review
  • 90.20 1999-11-25
    International Standard under systematic review
  • 90.60 2000-06-30
    Close of review
  • 90.93 2001-10-11
    International Standard confirmed
  • 90.20 2005-11-15
    International Standard under systematic review
  • 90.60 2006-07-15
    Close of review
  • 90.20 2009-04-15
    International Standard under systematic review
  • 90.60 2009-09-17
    Close of review
  • 90.93 2011-09-19
    International Standard confirmed
  • 90.20 2016-07-15
    International Standard under systematic review
  • 90.60 2016-12-07
    Close of review
  • 90.93 2018-09-28
    International Standard confirmed
  • 90.20 2023-07-15
    International Standard under systematic review
  • 90.60
    Close of review
• 95
  Withdrawal