Control of coated steel products setup of a standard method for quantitative depth profile analysis of Zn based coatings by direct current glow discharge optical emission spectroscopy
A method for determination of thickness and composition of Zn-based coatings on steel has been developed. The method is based on direct current glow discharge optical emission spectroscopy. Six different types of materials supplied by five major European steel producers have been used to develop and evaluate the method. In the research phase, the range of suitable analytical conditions for those materials was established. Based on these results, a draft of a standard method was written. An interlaboratory comparison based on the draft of a standard was carried out, involving 12 laboratories from 8 countries, using 9 different types of glow discharge spectrometers. The results show that the method works very well for accurate and rapid determination of the major element and the coating thickness. The concentrations of alloying elements could also be determined very accurately, but the inter-laboratory variations were in general a little too high. Based on these results, an amended final draft of the standard method has been written
Bibliographic Reference: EUR 18862 EN, (1999) 63pp.
Availability: Available from OOPEC Sales agents
ISBN: ISBN 92-828-5989-4
Record Number: 199910948 / Last updated on: 1999-07-16
Original language: en
Available languages: en