2019BS EN ISO 1833-15:2019 Textiles. Quantitative chemical analysis - Mixtures of jute with certain animal fibres (method by determining nitrogen content)
2011BS EN ISO 1833-15:2011 Textiles. Quantitative chemical analysis. Mixtures of jute and certain animal fibres (method by determining nitrogen content)
2011BS EN ISO 1833-15:2010 Textiles. Quantitative chemical analysis. Mixtures of jute and certain animal fibres (method by determining nitrogen content)