Description
The method is intended for the determination of ash content in foods when calculating their energy content. With minor modifications for certain types of foods, as mentioned in the text, the method is applicable to all foods, see appendix 1.
This method is collaboratively studied for ash content between 0.07 to 8.0 g /100 g. The sample is ashed to constant weight in a muffle furnace at 550 °C. NMKL method 173 replaces NMKL method No 7, No 23, No 108, No 128 and the previous version of No 173.