Quality of Treated Eucalypts Fence Posts Marketed in Three Municipalities of the State of Espirito Santo, Brazil

The purpose of this research was to examine the quality of treated eucalypts fence posts marketed in the municipalities of Alegre, Jeronimo Monteiro and Cachoeiro de Itapemirim, State of Espirito Santo, Brazil. To this end, the distribution, penetration and retention of chromate copper arsenate (CCA) water borne preservative in fence posts were compared to the parameters of the Brazilian Regulatory Standard Norms. Distribution and penetration were assessed by means of colorimetric reactions, while retention of the preservative product was assessed by atomic absorption spectrophotometry. With these parameters, it was found that the fence posts marketed in the three municipalities meet the standards for the preservative product distribution. However, it was possible to notice that some commercial establishments do not meet the requirements for minimum penetration and retention required by the Brazilian standards. The best retentions were found in fence posts marketed in the municipalities of Alegre and Jeronimo Monteiro.