By Joe Musso – UL Standards Program Manager
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UL 325 – Door, Drapery, Gate, Louver, and Window Operators
UL 325 remains active with a number of proposals in various stages of the standards development process. In addition to the current standards activity, UL was asked by industry in Canada and the US to propose UL 325 as a joint Canada-US standard to align the requirements in both countries. Publication of one standard for both countries is an efficient way for Canadian and US requirements to remain technically consistent. Maintaining the joint standard under a single consensus committee (STP 325) will reduce the duplication of efforts. The subcommittee working on the initial draft standard has been meeting regularly, and circulation of the draft for preliminary STP review is scheduled for March 2017.
UL 484 – Room Air Conditioners
A proposal to revise the flammable refrigerant charge size limits was circulated for STP preliminary review in November 2016. Comments were received and it was decided to form a task group to assist in reviewing the comments and to consider any changes to the proposal before it moves to ballot. The task group is scheduled to meet in April 2017.
UL 507 – Electric Fans
A meeting of STP 507, to discuss several new proposals, and other current standards activity, was held February 28, 2017, in Clearwater, FL. As a result of the meeting, a series of new proposals will be moved to STP ballot, including several addressing new motor requirements. In addition, other proposals resulting from the meeting discussion will move to STP preliminary review.
STP 745 – Electric Tools
With the IEC transition to the new IEC 62841 series of standards for hand-held and transportable tools, and lawn and garden machinery, efforts are continuing to adopt the associated UL 62841 series of standards when appropriate, as the IEC editions are published.
UL 749 – Household Dishwashers (Bi-national standard with Canada)
The revision cycle for the proposed 10th Edition of UL 749, including final recirculation, concluded February 20, 2017. Publication of the 10th edition is next and is scheduled for March 2017. A number of new proposals intended to further update the 10th edition, which were pending completion of the cycle that just concluded, will soon be under review by the binational technical harmonization committee (THC). Any new proposals for UL 749 should be submitted by the end of April 2017 for consideration in the next cycle.
UL 858 – Electric Ranges
UL 858 is already active in 2017. Revisions to UL 858 were published February 8, 2017 addressing a series of topics, including new requirements for induction heating appliances, an alternative to VW-1 wiring, an alternate method for evaluating protective electronic circuits & controls based UL 60335-1, and clarification of cooktop seals and gaskets aging.
Three new proposals, which cover improvements to the coil surface unit cooking oil ignition test, a new test for oven rack loading, and new surface temperature measurement procedures, were circulated for STP preliminary review in February 2017. Comments were received, and are being reviewed prior to the proposals moving to ballot. In addition, a virtual (web-based) STP 858 Meeting was held on February 23, 2017, to discuss the proposed changes being considered for the coil surface unit cooking oil ignition test. This was a great opportunity for comments and questions regarding the proposal, which is intended to reduce cooking fires, to be addressed directly within the full STP.
UL 923 – Microwave Cooking Appliances
A proposal to clarify the strain relief requirement reached STP ballot consensus, with comments, in December 2016. Changes were made to the proposal based on the ballot comments, and the recirculation period of the changes is scheduled to close at the end of March 2017. Two new proposals, including a revision to the tool interface requirement of fasteners, and a clarification of the test load for leakage current and power input tests, were circulated for STP preliminary review in February 2017. A number of comments were received, which are currently under review by the proposal authors.
In addition, a task group was formed to develop proposals intended to reduce the likelihood of a child being able to open a microwave oven door and access heated food or drink that may then injure them. This TG has been meeting regularly in an effort to develop substantive proposals to revise UL 923.
UL 982 – Household Food Preparing Machines
A series of eleven proposals reached and maintained consensus with the revision cycle concluding October 2016. The related changes were then published in November. The changes include requirements covering blender touch screen controls, blender blade endurance, fill line for food processors, use of button/coin cell batteries, and several related to markings and instructions.
Several new proposals were circulated for STP preliminary review in February 2017. These proposals include new requirements related to blender accessibility, stacked blade assembly & tamper, operating controls, magnetic interlocks, clarification of important safeguards, and a new supplement for household & hospitality-use single serving cold beverage dispensers. A number of comments were received and are currently under review by the proposal authors.
UL 1017 – Vacuum Cleaners, Blower Cleaners, and Household Floor Finishing Machines (Bi-national standard with Canada)
The proposed 10th edition of UL 1017 was circulated for STP preliminary review in July 2016. Based on the comments received, the proposed new edition is being prepared for ballot with a target timeframe of Q1/Q2 2017.
UL 1278 – Movable and Wall- or Ceiling-Hung Electric Room Heaters
The task group working on a new supplement for smart-enabled room heaters completed its work on the draft proposal document, with circulation for STP preliminary review scheduled to close March 13, 2017.
UL 2157 – Electric Clothes Washing Machines and Extractors (Bi-national standard with Canada)
A new revision cycle covering the proposed new (4th) edition is underway. The STP preliminary review closed September 29, 2016. Comments were reviewed by the technical harmonization committee (THC), and the proposed standard has been prepared for ballot. The STP ballot is scheduled to open March 16, 2017.
UL 2158 – Electric Clothes Dryers (Bi-national standard with Canada)
A new revision cycle covering the proposed new (5th) edition is underway. The STP preliminary review closed September 29, 2016. Comments were reviewed by the technical harmonization committee (THC), and the proposed standard has been prepared for ballot. The STP ballot is scheduled to open March 16, 2017.
UL 60335-1 – Household and Similar Electrical Appliances, Part 1: General Requirements
The 6th Edition of UL 60335-1 was published October 31, 2016.
UL 60335-2-24 – Household Refrigerators, Ice-Cream Appliances and Ice-Makers (Tri-national standard with Canada and Mexico)
The revision cycle for the proposed 2nd Edition of UL 60335-2-24, including final recirculation, concluded February 6, 2017. Publication of the 2nd edition is scheduled for March/April 2017.
UL 60335-2-40 – Household Electrical Heat Pumps, Air-Conditioners, and Dehumidifiers
The STP ballot for the proposed 2nd Edition of UL 60335-2-40 closed November 15, 2017. Consensus was not reached on all the proposal topics included in the new edition, and a number of comments were received. The technical harmonization subcommittee (THSC) is currently working to resolve the ballot comments, with the next THSC meeting scheduled for early April.