Applies to electric direct-acting room heaters. They may be portable, stationary, fixed or built-in. It defines the main performance characteristics and the methods for measuring these characteristics. For thermal-storage room heaters, see IEC 60531. THIS CONSOLIDATED VERSION CONSISTS OF THE SECOND EDITION (1994) AND ITS AMENDMENT 1 (1998). THEREFORE, NO NEED TO ORDER AMENDMENT IN ADDITION TO THIS PUBLICATION.