Objavljen
ISO 13904:2016 specifies a method for determination of the total and free tryptophan (Trp) content in feeding stuffs (e.g. complete and complementary feeds, supplementary feeds, raw materials, ingredients, and concentrates) and determination of free tryptophan in commercial pure substances and premixtures containing more than 2 % of tryptophan.
It does not distinguish between D- and L-forms.
                POVUČEN
                                    ISO 13904:2005
                            
                    OBJAVLJEN
                    ISO 13904:2016
                    90.93
                                        Odluka o potvrđivanju standarda
                    31. 10. 2022.
                
Hrana za životinje – Određivanje sadržaja triptofana
60.60 Standard objavljen
Hrana za životinje – Određivanje sadržaja triptofana
60.60 Standard objavljen