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Determining Cleanroom Standards

Determining Cleanroom Standards

Cleanroom standards are determined by particles mere microns in size and pollution that is measured in parts per million. The ISO standard 14644-1 defines a cleanroom as “a room in which the concentration of airborne particles is controlled, and which is constructed and used in a manner to minimize the introduction, generation, and retention of particles inside the room and in which other relevant parameters, e.g. temperature, humidity, and pressure, are controlled as necessary”.

Particle Control in a Cleanroom Environment

Minimising the introduction, generation and retention of particles in a cleanroom is achieved in the following 3 ways:

  • Supplying the room with a large quantity of air filtered with high efficiency filters (HEPA or ULPA) to dilute and remove particles, bacteria and chemicals from within the room. The air is also used to pressurise the room and ensure that no contaminated air flows into the cleanroom.
  • The cleanroom itself must be built with materials that do not generate contaminants, particles or outgas airborne chemicals, and must also be easy to clean. This includes lifting equipment and systems installed and operated within the cleanroom.
  • Cleanroom operators must wear garments that minimise dispersion of particles and micro-organisms generated by people such as hair, skin flakes, clothing fibres, etc. In fact, operator base contamination account for 70% to 80% of cleanroom contamination.

Cleanroom Industry Sectors

Bespoke Monorail Cleanroom Hoist

Hoist UK's design and manufacturing teams worked closely with BES to design and fabricate a cleanroom hoist entirely bespoke to their unique requirements and application.

Bouygues Energies and Services required a hoist suitable to cleanroom standards with bespoke features, to be built into the ceiling of their Mars Rover simulation room. The hoist had a safe working load of 1,600 kg and a 5.8 meter height of lift so that it could be used to pick up the Mars Rover for general maintenance or in the event it falls over.

Read The Case Study
Mars Rover Bespoke Monorail Hoist Clean Room