Top level if you are constucting from scratch is Approved Document L for England & Wales

https://www.gov.uk/government/publications/ventilation-approved-document-f

Then there is the HSE guidance

https://www.hse.gov.uk/ventilation/overview.htm

which for a machine shop will likely include COSHH and/or Local Exhaust Ventilation

Ultimately temperature will be down to "majority concern" which now we have had a coupe of sunny days there is a strange absence of the usual "What is the maximum temperature" in the press.

thanks for the docs appreciate you sending me the links

I think when i get into this one its going to be connected to  mist and vapour and the LEV controls around CNC machining, Some machines  are not fully enclosed units , therefor the work area / factory is not providing clean air ??? 

24C is so impracticable - there are many industries and geographies where the ambient is way above.

If it were implemented you can forget dining out over summer - some commercial kitchens are 30C in the middle of winter! Then we could discuss supply chan disruption in hot industries - paper, iron, steel, cement, aluminium, plastics, chemicals, oil.

Paris 2019 - 42C, London 2022 - 40C, Athens 1977 - 48C, Qatar 2010 - 50C

Imagine building stadiums for three years

I think you might be right J about the risks from inadequate LEV. You need to establish( measure) what is in the aerosols and what risk it poses to workers. Remember to include the risk from any cutting fluid itself, any metal particles in the aerosol, any microorganisms that might grow in the cutting fluid,  the risk from biocides that have been added to inhibit those microorganisms, plus any tramp oils that might form.

Someone has to decide if they are using the right cutting oils that minimises risks to workers and if they are then, is there anything that can be done to reduce the risk eg by adding biocides or changing the cutting fluid etc.

Then you look at LEV which is preferred to dilution ventilation because it gets the aerosol before people are exposed to it, and then you go to the dilution ventilation. 

Originally Posted by: Roundtuit

Top level if you are constucting from scratch is Approved Document L for England & Wales

https://www.gov.uk/government/publications/ventilation-approved-document-f

Then there is the HSE guidance

https://www.hse.gov.uk/ventilation/overview.htmlove tester

which for a machine shop will likely include COSHH and/or Local Exhaust Ventilation

Ultimately temperature will be down to "majority concern" which now we have had a coupe of sunny days there is a strange absence of the usual "What is the maximum temperature" in the press.

Thank you very much for your sharing

Well miajackson1117 I do not feel the love for people who place hidden hyperlinks in my posts - REPORTED

AK - at a very quick glance I could buy a domain name in the British Indian Ocean Territory for just £45 for a year. xxxxxx.io

Nice discount if I wanted 5 years. 

Not going to look into what a "love-tester" website would be about!

However, it just goes to show that these Forums are viewed from far afield, that is if "Mia" is actually in the British Indian Ocean Territory!