4.1.1 Brief description of the air conditioning system
All areas for openly handling raw materials and/or products are qualified with reference to clean room class D (RKD) The secondary packaging takes place in clean room class E (RKE).
No room classes are defined in the EU-GMP guidelines for manufacturing non-sterile solid forms; so it is an individual decision by Maas & Peither Pharma GmbH to carry out production in rooms of a similar class to clean room D. Here "similar" means that the ventilation system is designed to comply with the particle limit values stated for this clean room class in Annex 1 of the EU-GMP guidelines but other limit values and intervals have been established for microbiological and particle monitoring.
其实在国外,没有对于非无菌固体制剂的暴露环境进行相应的环境级别硬性要求(比如必须在D级或D级以上等等),所以以前WHO的非无菌固体制剂的指南中提及到相应的class E,class D的概念。按照该上述原文,完全可以基于RA的结果,设置similar CLASS X(即particle limit符合相应的EU-GMP annex/ISO class的要求,而微生物限度等则采用自定义的限度标准)