HVAC VALIDATION

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We provide and execute range of services to HVAC validation by our expert professionals available with us. Continuum performs the HVAC validations as per ISO 14644, EU cGMP, US Federal Standard 209E, USFDA ,Schedule M (National Regulatory Body), WHO Geneva, TGA (Australia), European (EMEA), MHRA (European Countries) guidelines for all room classifications.

Following Test In Clean Room And HVAC Validation

Air Velocity Test And Calculation of ACPH

The purpose of these tests is to measure airflow velocity and uniformity, and supply airflow rate in cleanrooms and clean zones. Measurement of velocity distribution is necessary in unidirectional airflow cleanrooms and clean zones, and supply airflow rate in non-unidirectional cleanrooms. Measurement of supply airflow rate is. carried out to ascertain the air volume supplied to the clean installation per unit of time, and this value can also be used to determine the air changes per unit of time. The supply airflow rate is measured either downstream of final filters or in air supply ducts; both methods rely upon measurement of velocity of air passing through a known area, the airflow rate being the product of velocity and area. The choice of procedure should be agreed between customer and supplier. These tests are applicable in all three of the designated occupancy states.

Air Balancing

The purpose of the air pressure difference test is to verify the capability of the cleanroom system to maintain the specified pressure differential between the installation and its surroundings. The air pressure difference test should be performed after the installation has met the acceptance criteria for airflow velocity or volume, airflow uniformity and other applicable tests.

Installed HEPA Filter Leakage (Integrity) Testing – DOP / PAO Test

These tests are performed to confirm that the final high efficiency air filter system is properly installed by verifying the absence of bypass leakage in the installation, and that the filters are free of defects (small holes and other damages in the filter medium and frame seal) and leaks (bypass leaks in the filter frame and gasket seal, leaks in the filter bank framework). These tests do not check the efficiency of the system. The tests are performed by introducing an aerosol challenge upstream of the filters and scanning downstream of the filters and support frame or sampling in a downstream duct.

Non Viable Particle Count Test

This test method specifies the measurement of airborne particle concentrations with size distributions having a threshold size between 0,1 µm and 5 µm. Measurements can be made in any of three defined occupancy states; as-built, at-rest and operational. The measurements are made to certify or verify the cleanliness classification of the installation in accordance with ISO 14644-1 or to make periodic measurements in accordance with ISO 14644-2

Recovery Test

The recovery test is performed to determine whether the installation is capable of returning to a specified cleanliness level within a finite time, after being exposed briefly to a source of airborne particulate challenge. This test is not recommended for unidirectional airflow installations

Air Flow Pattern test (Smoke Study)

The purpose of this test is to confirm either the airflow direction or airflow pattern or both in regard to the design and performance specifications. If required, spatial characteristics of airflow in the installation may also be confirmed.

Light Intensity Testing

The light meter has a sensor that measures the light falling on it and provides the user with a measurable IL luminance reading.

Sound Level Testing

Sound intensity-based sound power can be measured in any sound field, but certain requirements with regard to the type of sound must be met.

Contamination Leak Test

This test is performed to determine if there is intrusion of unfiltered air into the cleanroom or clean zone(s) from outside the cleanroom or clean zone enclosure(s) through joints, seams, doorways and pressurized ceilings.