EN-937 › Complete Document History
Chemicals used for treatment of water intended for human consumption - Chlorine

Complete Current Edition:
   2016 EDITION - ONLY AVAILABLE IN NATIONAL EDITIONS - May 25, 2016

Obsolete Revision Information:
   2009 EDITION - ONLY AVAILABLE IN NATIONAL EDITIONS - Jan. 1, 2009
   2007 EDITION - ONLY AVAILABLE IN NATIONAL EDITIONS - Jan. 1, 2007
   1999 EDITION - ONLY AVAILABLE IN NATIONAL EDITIONS - Jan. 1, 1999