1 Scope
This document specifies quality levels for imperfections in joints in thermoplastic moulded components due to the joining
process.
This document does not describe imperfections that can be generated either during
service or present before joining, such as poor fit up. The correct preparation before
joining is described in the relevant thermal joining process specification (TJPS),
as defined in ISO 23512.
Three quality levels are specified in order to permit application for a wide range of the following joining
processes:
a) ultrasonic welding;
b) ultrasonic spot welding;
c) infrared welding;
d) hot gas convection welding;
e) vibration welding;
f) spin welding;
g) laser welding;
h) hot plate welding; and
i) heat staking: hot air; electrical, infrared and ultrasonic.
BS ISO 5623:2022 history
2022BS ISO 5623:2022 Plastics. Joining of thermoplastic moulded components. Specification for quality levels for imperfections