NETZER GROUP Cleanroom Engineering
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What is indoor air made of?
Indoor air mainly consists of nitrogen, oxygen and argon, a noble gas. Then there are numerous trace gases, aerosols, water vapor, dust and biological particles.
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How are indoor air and cleanrooms connected?
Airborne particles in particular play an important role in cleanrooms. Ideally, they should not get there in the first place. The number of particles/m³ determines the cleanroom classification according to ISO standard 14644-1 or according to GMP guideline Annex 1. The classes range from 1 to 9 and from GMP A to D. The range of industries that require cleanrooms for certain production steps or entire production lines is correspondingly wide.
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What is the definition of a cleanroom?
"Room with a defined concentration of airborne particles that is designed and used in such a way that the number of particles introduced into the room or generated and deposited in the room is as small as possible, and in which other cleanliness-relevant parameters such as temperature, humidity and pressure are controlled as required." (VDI Guideline 2083-1) A cleanroom can contain a complete production line or be a single system.
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Who needs a cleanroom?
Certain industries and sectors require cleanrooms for production, finishing, processing and packaging. These include the chemical and pharmaceutical industries, semiconductor production, the automotive industry and food manufacturers. Depending on the requirements for the cleanroom, the air must be completely exchanged at certain intervals to ensure that the number of particles in the room is not exceeded.
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How is a NETZER GROUP cleanroom created?
Rough planning → Detailed planning → Neutral tendering among industry leaders → Determination of best bidder → Awarding of contract → Project and implementation support → Inspection of installed systems → Commissioning → Acceptance → Support during operation → Evaluation
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What measurements and tests are required for cleanroom qualification?
Particle measurements / Microbiological surface tests / Active and passive air bacteria count / Volume flow measurement to determine the air exchange rate / Recovery measurement / Leak test on the built-in filter system / Pressure difference measurements / Temperature, humidity, light intensity and sound pressure measurements