Standard Specification for Ovens, Microwave, Electric

Abstract

This specification covers commercial microwave ovens. These ovens use ultrahigh frequency electromagnetic radiation in the approved industrial, scientific, and medical bands to defrost, heat, and cook food. The microwave ovens are classified by types, sizes, groups, styles, and classes. In terms of types, there are two kinds: Type I is commercial microwave oven and Type II is combination of commercial microwave and convection/radiant heat oven. They can be classified into Size 600, Size 1200, and Size 1800 according to microwave output power. In terms of cavity volume, these ovens can be divided into Group 1, Group 2, Group 3, and Group 4. As for the size of cooking cavity, these microwave ovens may be grouped into Class 1, Class 2, Class 3, and Class 4. They may have two styles: Style 1 which has a dial type timer and Style 2 which has a digital timer and touchpad controls(computer controlled). The material, design, construction, and physical requirements of microwave ovens shall be discussed. The performance requirements of these ovens shall be discussed after evaluating the following: cooking cavity light, interchangeability, microwave rated power output, and operation. The following tests shall be performed: cavity weight load test, microwave rated power output test, commercial microwave oven reliability test, production unit test, operational test, and microwave energy distribution test.