What is BS EN 16602-70-55 - Microbiological examination of flight hardware and cleanrooms about?  
BS EN 16602-70-55 defines test procedures for quantitative and/or qualitative microbiological examination of surfaces of flight hardware and in microbiologically controlled environments (e.g., cleanroom surfaces, cleanroom air, isolator systems).
The following test methods are described:
- Surface and air sampling and detection of biological contaminants with swabs, wipes, contact plates, and air samplers, followed by cultivation for bioburden determination
- Sampling of biological contaminants by DNA analysis from swabs and wipes
Note 1: BS EN 16602-70-55 does not address molecular contamination control.
Note 2: BS EN 16602-70-55 does not address the principles and basic methodology for controlling cleanrooms and associated controlled environments with constraints on particulate contamination.
Who is BS EN 16602-70-55 - Microbiological examination of flight hardware and cleanrooms for? 
BS EN 16602-70-55 on microbiological examination of flight hardware and cleanrooms is useful for: 
- Spacecraft and space products manufacturers         
- Aerospace products manufacturers   
- Testing agencies involved in the inspection of spacecraft and aerospace products         
- Quality control personnel for spacecraft products      
- Aeronautical engineers 
- Space researchers
Why should you use BS EN 16602-70-55 - Microbiological examination of flight hardware and cleanrooms?  
The objective of BS EN 16602-70-55 is to ensure that the proper procedures for establishing the microbiological contamination on flight hardware and controlled environments are in place to meet the planetary protection constraints.
The test methods described in BS EN 16602-70-55 apply to controlling the microbiological contamination on all manned and unmanned spacecraft, launchers, payloads, experiments, ground support equipment, and cleanrooms with planetary protection constraints.
BS EN 16602-70-55 may be tailored for the specific characteristic and constrains of a space project in conformance with ECSS-S-ST-00.
