Demystifying the Four Hour Time-Weighted Average
23 Sep 2021
The HSE's latest push to improve asbestos personal monitoring is centred around the often dreaded Four Hour Time-Weighted Average. One of the biggest factors behind the 4hr TWA's unfavourable reputation is a widespread lack of understanding of why it's used and how it's calculated. In his talk, Nick Garland explains what the 4hr TWA test is for, demystifies the calculations, and shows how Assure360 can help.