INSERTION LOSS INSERTION LOSS The reduction in power that takes place at the load on insertion of a network between the source and the load. It is generally expressed as a ratio in decibels. INSPECTION Inspection is the process of measuring, examining, testing, or otherwise comparing a unit of product with the require- ments. INSPECTION BY ATTRIBUTES Inspection whereby either the unit or product is classified simply as defective or nondefective, or the number of defects in the unit of product is counted, with respect to a given requirement or set of requirements. INSPECTION BY VARIABLES Inspection wherein certain qual- ity characteristics of sample are evaluated with respect to a contin- uous numerical scale and expressed as precise points along this scale. Variables inspection records the degree of conformance or nonconformance of the unit with specified requirements for the quality characteristics involved. INSPECTION, CYCLICAL A system whereby supplies and equipment in storage are subjected to, but not limited to, periodic