The firm policy has as first aim their clients' satisfaction through the needs identification and the research of a continuous optimisation of the products and the services. One of the most important instrument used for this aim is represented by the conformity of his organisations to the ISO 9000 directions concerning the quality systems. A laboratory with high precision equipment is absolutely necessary for a sophisticated technology firm such as Europeyarn, both for R & D and qualitycontrol. The images show electronic equipment for the control of the count, of the twistings and of the yarn cross section evenness and resistance.