Only 2 witnesses at Grosvenor Inquiry have correctly answered proposition. “Is the response time of the methane sensor to knock the power off at greater than 2.5% faster than the lag time of the ignition of methane?” Greg Dalliston (Retired ISHR) and Andrew Self Ventilation Consultant
As the Grosvenor Inquiry testimony and evidence has unfolded, I have often sat shaking my head at the responses provided about the response time of methane monitors. None more so…