Fire resistance tests for service installations - Single compartment smoke extraction ducts Ingestion-build-189776 Photomultiplier tubes (PMT) are more

Photomultiplier tubes (PMT) are more sensitive than photodiodes and are used for low-light-level detection

containing alloying elements in amounts smaller than the limiting values fixed by EN 10020

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baseline and performance indicators

while the Poisson’s ratio is a measure of how much a material deforms under stress

Fire resistance tests for service installations - Single compartment smoke extraction ducts Ingestion-build-189776 Photomultiplier tubes (PMT) are more1 Scope This part of EN 1366 specifies a test method for determining the fire resistance of smoke extraction ducts that are used for single compartment applications only. In such applications, the smoke extraction system is only intended to function up to flashover (typically 600 C). This method of test is only suitable for ducts constructed from non combustible materials (euro class A1 and A2 s1, d0). It is applicable only to four sided and circular