ISO 3443-2:1979

Tolerances for building — Part 2: Statistical basis for predicting fit between components having a normal distribution of sizes

Describes the fundamental characteristics of dimensional variability in building and of the particular case of combination of random unrelated variables. Sets out the need to relate dimensional variability to the limits imposed on joint widths by the need for satisfactory functioning. Applies to all forms of building construction that have predictable variability which follows a Gaussian distribution.