Search results
Results from the WOW.Com Content Network
A common label for certifying that a device has been tested. In electrical safety testing, portable appliance testing (PAT inspection or PAT testing) is a process by which electrical appliances are routinely checked for safety, commonly used in the United Kingdom, Ireland, New Zealand and Australia.
Because of the tight regulatory requirements and the long development time for a new drug, the production technology is "frozen" at the time of conducting phase-2 clinical trials. Generally, the PAT initiative from FDA is only one topic within the broader initiative of "Pharmaceutical cGMPs for the 21st century – A risk based approach".
The tester has output overload protection. The test voltage may be either direct current or alternating current at power frequency or other frequency, like resonant frequency (30 to 300 Hz determined by load) or VLF (0.01 Hz to 0.1 Hz), when convenient. The maximum voltage is given in the test standard for the particular product.
An insulation resistance test (IR test) measures the electrical resistance of insulation by applying a voltage between two locations, and measuring the resultant current flow. Proper safety precautions must be taken when doing this test, such as exclusion zones, making sure no wires are exposed, and personal protective equipment is worn.
IEC 61000-4-20, Testing and measurement techniques - Emission and immunity testing in transverse electromagnetic (TEM) waveguides. IEC 61000-4-21, Testing and measurement techniques - Reverberation chamber test methods. IEC 61000-4-22, Testing and measurement techniques - Radiated emissions and immunity measurements in fully anechoic rooms (FARs).
Photographic Activity Test (PAT) is an ISO standard test detailed in ISO 18916:2007 (E), updated in 2007. [1] Previous versions of the standard were numbered ISO 14523:1999(E). [1] The test evaluates materials for archival quality and their use in photographic enclosures.
Specialized EMI test receivers or EMI analyzers are used for EMC compliance testing. These incorporate bandwidths and detectors as specified by international EMC standards. An EMI receiver may be based on a spectrum analyser to measure the emission levels of the DUT across a wide band of frequencies (frequency domain), or on a tunable narrower ...
This test determines whether equipment can withstand the effects of voltage spikes arriving at the equipment on its power leads, either AC or DC. 18.0 Audio frequency conducted susceptibility: This test determines whether the equipment will accept frequency components of a magnitude normally expected when the equipment is installed in the A/C.