Application of Statistical Method to the Quality Control of Gas Appliances and to Testing Reliability, with Particular Regard to Gas Meters

摘要

The statistical quality control of appliances is described, using long-term endurance tests on displacement gas meters as the exemplar. The control is achieved by subjecting two makes of the same type of meter (from different manufacturers) to two different working programmes. This makes it possible to define precisely the meter accuracy at different characteristic flow rates. Clearly, the results of these statistical controls are a basis for large-scale technical and financial decisions. (ERA citation 08:031950)