This publication also bears a QC number. This number, QC 400200, is the specification number in the IEC Quality Assessment System for Electronic Components (IECQ). Relates to fixed resistors with rated dissipations greater than 1 W up to 1 000 W which are provided with a cover or coating for environmental protection. Prescribes preferred ratings and characteristics and selects from IEC 115-1 appropriate Quality Assessment procedures, tests and measuring methods. Gives general performance requirements.