Published
ISO 5518:2007 specifies a method for determining the benzoic acid content of fruits, vegetables and derived products.
As chlorobenzoic acids are resistant to oxidation, the method cannot be applied in the presence of p-chlorobenzoic acid, as the absorption spectrum of this acid is close to that of benzoic acid. Neither can it be used in the presence of cinnamic acid, which is transformed into benzoic acid by chromic acid oxidation.
                WITHDRAWN
                                    ISO 5518:1978
                            
                    PUBLISHED
                    ISO 5518:2007
                    90.93
                                        Standard confirmed
                    Aug 26, 2024
                
Fruits, vegetables and derived products — Determination of benzoic acid content — Spectrophotometric method
60.60 Standard published