URBAN OUTDOOR FURNITURE

The detection frequency of weld appearance quality for urban outdoor metal furniture is typically determined by industry standards, manufacturer specifications, and project requirements. Most quality control protocols require 100% visual inspection of all welds during production, with additional non-destructive testing methods such as dye penetrant or magnetic particle inspection performed on a statistical sampling basis ranging from 10-25% of production runs. For critical structural components or high-stress areas, more frequent testing may be implemented, sometimes reaching 100% of certain weld types. Regular inspections are also conducted during routine maintenance cycles, typically every 6-12 months for public furniture in urban environments, with more frequent checks in coastal or high-corrosion areas. The specific frequency often depends on factors including the furniture's structural importance, environmental conditions, and relevant safety regulations governing public infrastructure.