update:

new or missing or better quality:

EN ISO 14780:2017 Solid biofuels - Sample preparation (ISO 14780:2017)
EN ISO 18134-2:2017 Solid biofuels - Determination of moisture content - Oven dry method - Part 2: Total moisture - Simplified method (ISO 18134-2:2017)
EN ISO 18135:2017 Solid Biofuels - Sampling (ISO 18135:2017)
EN ISO 18846:2016 Solid biofuels - Determination of fines content in quantities of pellets (ISO 18846:2016)
EN ISO 18847:2016 Solid biofuels - Determination of particle density of pellets and briquettes (ISO 18847:2016)
EN ISO 19743:2017 Solid biofuels - Determination of content of heavy extraneous materials larger than 3*15 mm (ISO 19743:2017)


only 1 missing is:

EN ISO 18125:2017 Solid biofuels - Determination of calorific value (ISO 18125:2017)


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