EN 599-1 (2009). Durability of wood and wood-based products—Efficacy of preventive wood preservatives as determined by biological tests—Part 1: Specification according to use class.

has been cited by the following article:

• TITLE: A Wood Preservative Based on Commercial Silica Nanodispersions and Boric Acid against Fungal Decay through Laboratory and Field Tests

  AUTHORS: Sabrina Palanti, Elisabetta Feci

  KEYWORDS: Basidiomycetes; Boric Acid; Colloidal Silica; Wood Durability; Field Test

  JOURNAL NAME: Open Journal of Forestry, Vol.3 No.2, April 30, 2013

  ABSTRACT: The paper is based on the development of a wood preservative without metal salts to be used in use classes 3 and 4 (EN 335), eco-friendly and harmless to humans and animals. Boric acid was used as a biocide, due to its effectiveness against fungi and insects. It is also known to be easily leached from wood exposed to weather action. Colloidal silica was therefore added in the formulations to guarantee the fixation of boric acid to wood. The different formulations were tested for the protective efficacy against decay fungi through laboratory tests (EN 113) and field trials (EN 252). The results were promising, especially those concerning boron fixation and efficacy against decay fungi through laboratory tests, where some formulations and retentions gave a durability class 1 (very durable) according to EN 350-1. The fourth evaluation, after 50 months of field trials showed only a slight difference between the treated samples and controls.