This part of YC/T 235 specifies the general tolerances on the length and angle dimensions of plastic parts made from semi-finished products, as well as the general tolerances on straightness, flatness and parallelism. This section only applies to plastic parts made of the following plastic semi-finished products:
——PMMA (a kind of organic glass with dielectric properties);
——PC (polycarbonate resin);
——PC with surface coating ( Hard polycarbonate resin).
YC/T 235.5-2007 history
2007YC/T 235.5-2007 General tolerances- Part 5: Plastic piece made from plastic semi-manufactured goods