It's an essential read for any validation engineer, quality assurance professional, or process development scientist working with sterile filtration.
The 2008 revision of TR 26 was a landmark document. It moved the industry away from a prescriptive "checklist" mentality toward a more holistic, systems-based approach. It introduced the concept of the "Contamination Control Strategy" (CCS) before it became a buzzword in Europe. However, as technology advanced, the 2008 version began to show its age, particularly regarding the definitions of cleanroom classifications and the handling of modern robotics. pda technical report 26