UL 998 BULLETIN-2010 SUMMARY OF TOPICS The following changes in requirements to the Standard for The Standard for Humidifiers, UL 998, are being proposed:
The following changes in requirements to the Standard for The Standard for Humidifiers, UL 998,
are being proposed:
1. The Fifth Edition of UL 998 including a) Addition of the Definition of ?Portable?; b)
Clarification of the Probe Test; c) Elimination of the Term ?Pigtail”; d) Addition of Single
Controls for Regulating and Limiting Functions and Backup Protection; e) Removal of
the Distinction Between Class 1 and Class 2 Filters; f) Liquid Container and Gasket
Clarifications and g) Other minor editorial revisions.
2015UL 998 BULLETIN-2015 UL Standard for Safety Humidifiers (COMMENTS DUE: NOVEMBER 23@ 2015)
2014UL 998 CRD-2014 UL Standard for Safety Humidifiers - Section / Paragraph Reference: New Supplement SA Subject: Smart Enabled Humidi?ers (Edition 5: April 25, 2011)
2014UL 998 BULLETIN-2014 UL Standard for Safety Humidifiers (COMMENTS DUE: DECEMBER 5@ 2014)
2010UL 998 BULLETIN-2010 SUMMARY OF TOPICS The following changes in requirements to the Standard for The Standard for Humidifiers, UL 998, are being proposed:
2004UL 998 BULLETINS-2004 UL Standard for Safety Humidifiers (09/27/2004 (12p); 01/27/2004 (8p))
2001UL 998-2001 UL Standard for Safety Humidifiers Fourth Edition; Reprint with Revsions through and Including 5/12/2006