EN IS0 6887-1:2017/A1 EUROPEAN STANDARD NORME EUROPEENNE EUROPAISCHE NORM July 2024 ICS 07.100.30 English Version Microbiology of the food chain - Preparation of test samples, initial suspension and decimal dilutions for microbiological examination - Part 1: General rules for the preparation of the initial suspension and decimal dilutions Amendment 1: Requirements and guidance on the use of larger test portion size for qualitative method (IsO 6887- 1:2017/Amd 1:2024) Microbiologie de la chaine alimentaire - Preparation Mikrobiologie der Lebensmittelkette - Vorbereitung des échantillons, de la suspension mere et des dilutions von Untersuchungsproben und Herstellung von décimales en vue de I'examen microbiologique - Partie Erstverdinnungen und von Dezimalverdinnungen fur 1: Regles generales pour la preparation de la mikrobiologische Untersuchungen - Teil 1: Allgemeine suspensionmereetdes dilutionsdécimales Regeln fur die Herstellung von Erstverdinnungen und Amendement 1: Exigences et recommandations sur Dezimalverdinnungen - Anderung 1: Anforderungen I'utilisation d'une taille de prise d'essai plus grande und Leitlinien fur die Verwendung grogerer pour les méthodes qualitatives (IS0 6887-1:2017/Amd Prifmengen bei qualitativen Verfahren (IS0 6887 1:2024) 1:2017/Amd 1:2024) This amendment A1 modifies the European Standard EN IS0 6887-1:2017; it was approved by CEN on 25 July 2024. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this amendment into the relevant national standard without any alteration.Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This amendment exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkiye and United Kingdom. ce EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEEUROPEENDENORMALISATION EUROPAISCHESKOMITEEFURNORMUNG CEN-CENELECManagementCentre:RuedelaScience23,B-1040Brussels 2024CEN Ref. No. EN IS0 6887-1:2017/A1:2024 E All rights of exploitation in anyform and by any means reserved worldwidefor CENnational Members. EN IS0 6887-1:2017/A1:2024 (E) Contents Page 2 EN IS0 6887-1:2017/A1:2024 (E) European foreword This document (EN IS0 6887-1:2017/A1:2024) has been prepared by Technical Committee IS0/TC 34 "Food products" in collaboration with Technical Committee CEN/TC 463 “Microbiology of the food chain" the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2025, and conflicting national standards shall be withdrawn at the latest by January 2025. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. Any feedback and questions on this document should be directed to the users' national standards body/national committee. A complete listing of these bodies can be found on the CEN website. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,