December 18, 2019
Written By: Joe Musso, Standards Program Manager
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STP 325 – Door, Drapery, Gate, Louver, and Window Operators and Systems – Five new proposal topics were circulated for STP ballot on October 18, 2019, with ballots and comments due December 9. In addition to a clarification of section 34, proposals include an alternate leakage current measurement method, additional warning placards for horizontally moving commercial door operators, tubular drive marking locations and a revision to clause 60.8.4 b regarding pedestrian access.
STP 499 – Electric Heating Appliances – A proposal covering battery-operated heating appliances was circulated for STP ballot, closing on September 16, 2019. The proposal reached consensus, but with several comments that are under consideration.
STP 507 – Electric Fans – The task group formed to continue work on a proposal submitted from the CPSC to include a new thermal condition performance test for unattended fans, continues to make progress. CPSC is leading the task group (TG) which completed development of a proposal for consideration by the STP and public. The proposal was discussed at the 2019 STP 507 Meeting. As a result of the meeting, the TG worked to further refine the proposal based on input received during the meeting. The proposal was circulated for preliminary STP and public review, closing for comments on August 21. The TG is continuing to meet to refine the proposal based on preliminary comments, prior to it being issued for ballot.
STP 745 – Electric Tools – The Standard for Electric Motor-Operated Hand Held Tools, Transportable Tools and Lawn and Garden Machinery – Safety – Part 4-2 Particular Requirements for Hedge Trimmers, UL 62841-4-2, was published on September 13, 2019.
STP 982 – Motor-Operated Household Food Preparing Machines – A new (8th) edition of the Standard for Motor-Operated Household Food Preparing Machines, UL 982, was published on September 27, 2019. Changes in the new edition include requirements covering the following topics:
- Clarification of applicability of self-holding protector abnormal operation test
- Smart enabled machines
- Vacuum blender
- Feed opening accessibility
- Electric knife unintentional operation
- Interlocked blender cover opening equivalent area
- Food processors with momentary contact switch
- Input test
- Soup making blenders
STP 998 – Humidifiers – The proposed new (6th) edition of the Standard for Humidifiers, UL 998, along with a change to the scope for smart enabled humidifiers were circulated for ballot, closing on October 8, 2019. The proposals reached consensus with no technical comments. The new requirements are undergoing editorial changes in preparation for publication.
STP 1026 – Electric Household Cooking Appliances – A new proposal covering touch controls was circulated for STP ballot on October 18, 2019, with ballots and comments due on November 18.
STP 2157 – Electric Clothes Washing Machines, Extractors and Dryers – The technical harmonization committee (THC) has not yet initiated the next standards cycle for UL 2157 (clothes washers). STP preliminary review for the proposed new (6th) edition of UL 2158 (clothes dryers) closed for comment on November 15, 2019. The THC will then review the comments and prepare the proposals for STP ballot which would likely occur during Q1 2020 .
STP 2595 – General Requirements for Battery-Powered Appliances – The new (3rd) edition of UL/CSA 2595 has been developed and was circulated for preliminary STP review in 2018. The new edition will integrate, update, and clarify a number of requirements, related to maximum rated voltages, use of general purpose batteries, general conditions of test requirements, normal charging of lithium-ion systems, power switches, and products powered or charged by universal serial bus (USB) power sources. A significant number of comments were received which are currently being considered by the Technical Harmonization Committee. It is anticipated that the proposed new edition will be posted for ballot by the end of 2019.
STP 60335-2-40 – Household and Similar Electrical Appliances – Safety – Part 2-40: Particular Requirements for Electrical Heat Pumps, Air-Conditioners and Dehumidifiers - The new (3rd) edition of UL 60335-2-40 was published on November 1, 2019.