This guide is intended to support operators of batch (general) galvanizing plants and the permitting authorities to understand the requirements and obligations arising from European Commission Implementing Decision (EU) 2022/2110 of 11 October 2022 establishing the best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council on industrial emissions, for the ferrous metals processing industry.  EGGA was an active participant to the EIPPCB Technical Working Group that developed these BAT Conclusions. The guide is based on our experience is the development and adoption of the BAT Conclusions.

This guidance augments the basic guidance given in Clause 6.7.5 of EN ISO 14713 Part 2: 2019. Liquid metal assisted cracking (LMAC), or liquid metal embrittlement (LME), occurs when a combination of steel characteristics, fabrication detailing and galvanizing processing variables create conditions for brittle cracking of a steel article during galvanizing. Such a combination of factors rarely occurs in practice. For fabrications that might be susceptible to LMAC, it is recommended to follow the guidance contained in this document.

Hot dip galvanizing to EN ISO 1461 and CE marking of structural steelwork to EN 1090. CE Marking for all construction products, covered by a harmonised European standard or conforming to a European Technical Assessment became mandatory from 1 July 2013. CE Marking for fabricated structural steelwork came into force one year later – on 1 July 2014. This is a major development for engineers, contractors and steelwork fabricators and it demands careful attention to these new obligations. Sub-contract operations are also affected by the CE marking obligations of the steel fabricator.