Methods of analysis which are applicable uniformly to various groups of commodities should be given preference over methods which apply only to individual commodities.
Ba cheart tús áite a thabhairt do mhodhanna anailíse is infheidhme go haonfhoirmeach maidir le grúpaí éagsúla tráchtearraí ar mhodhanna is infheidhme maidir le tráchtearraí aonair amháin.