Specialist article published: Matrix uncertainty in feeding-stuffs according to ISO 19036:2019 The specialist article MATRIX UNCERTAINTY IN FEEDING_STUFFS ACCORDING TO ISO 19036:2019 was recently published which was created in collaboration by – Augustenberg Agricultural Technology Center, Karlsruhe – Agency for Health and Food Security, Linz (A) – State Office for Agriculture, Food Safety and Fisheries Mecklenburg-Western Pomerania, Neubrandenburg – State Office for Agriculture and Horticulture, Halle – LUFA Nord-West, Oldenburg – Chemical Veterinary and Examination Office Westphalia, Arnsberg – Thuringian State Office for Agriculture and Rural Areas, Jena – LUFA Speyer – Lower Saxony State Office for Consumer Protection and Food Safety, Stade – North Rhine-Westphalia Chamber of Agriculture LUFA NRW, Münster – Agricultural Communication and Service Company mbH, Niederwiesa – AGROLAB LUFA GmbH, Kiel – Bavarian State Office for Health and Food Safety, Oberschleißheim – State operating company for the environment and agriculture, Nossen The article was published open access by Brill Wageningen Academic and is available for free download here: article matrix uncertainty in feed ISO 19036 .