UNE-EN ISO 14254:2018 Soil quality - Determination of exchangeable acidity using barium chloride solution as extractant (ISO 14254:2018) (Endorsed by Asociación Española de Normalización in June of 2018.)
2018UNE-EN ISO 14254:2018 Soil quality - Determination of exchangeable acidity using barium chloride solution as extractant (ISO 14254:2018) (Endorsed by Asociación Española de Normalización in June of 2018.)
2011UNE-EN ISO 14254:2011 Soil quality - Determination of exchangeable acidity in barium chloride extracts (ISO 14254:2001)