UL 335K BULLETIN

Abstract

Scope: GENERAL National Differences from the text of International Electrotechnical Commission (IEC) Publication 60335-2-72, Safety of Household and Similar Appliances, Part 2: Particular Requirements for Floor Treatment Machines with or without Traction Drive, for Commercial Use are indicated by notations (differences) and are presented in bold text. There are five types of National Differences as noted below. The difference type is noted on the first line of the National Difference in the standard. The standard may not include all types of these National Differences. DR – These are National Differences based on the national regulatory requirements. D1 – These are National Differences which are based on basic safety principles and requirements, elimination of which would compromise safety for consumers and users of products. D2 – These are National Differences from IEC requirements based on existing safety practices. These requirements reflect national safety practices, where empirical substantiation (for the IEC or national requirement) is not available or the text has not been included in the IEC standard. DC – These are National Differences based on the component standards and will not be deleted until a particular component standard is harmonized with the IEC component standard. DE – These are National Differences based on editorial comments or corrections. Each national difference contains a description of what the national difference entails. Typically one of the following words is used to explain how the text of the national difference is to be applied to the base IEC text: Addition / Add - An addition entails adding a complete new numbered clause, subclause, table, figure, or annex. Addition is not meant to include adding select words to the base IEC text. Modification / Modify - A modification is an altering of the existing base IEC text such as the addition, replacement or deletion of certain words or the replacement of an entire clause, subclause, table, figure, or annex of the base IEC text. Deletion / Delete - A deletion entails complete deletion of an entire numbered clause, subclause, table, figure, or annex without any replacement text.