1. THE EFFECT OF ALKALI AND SURFACTANT CONCENTRATION, TEMPERATURE AND STIRRING ON THE CLEANING EFFICIENCY OF THE CARBON STEEL SURFACE. Authors: L. BAIA, K. MAGYARI, LIVIU COSMIN COTET, SEPTIMIU CASSIAN TRIPON, M.V. RACOLȚA-PAINA, ISTVAN-ATTILA SZÉKELY, C.A. SALAGEAN, V. DANCIU, ALIN GRIG MIHIS.