OS GSO ISO 16634-1:2015 Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content -- Part 1: Oilseeds and animal feeding stuffs
1970OS GSO ISO 16634-1:2015 Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content -- Part 1: Oilseeds and animal feeding stuffs