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Many insurance AHJs, other than the FMs, will recommend following GAP.14.0.1 "Fire Protection Water Supplies", excerpt attached. The current version is on the AXA XL website, GAP now called PRC.

Recommended industry practice based on long-standing insurance guidelines - GAP 2.5.2 Oil and Chemical Plant Layout and Spacing, although for production properties there was a slightly less restrictive guideline no longer published - "Gasoline Plants - Recommendations and Guidelines". I should...

Sounds correct also to API 754. But not worth fighting over as it should be adequately investigated under an OSE incident reporting system, focusing on care and management of utility hoses. retired, technical library for sale on eBay - https://www.ebay.com/usr/prosafbooks

Here's a symbol from a company that used to install Greenwood QCV's on LPG tank outlets. Also a fusible link from another company's PID standard. A motor-operated valve symbol with TSE instead of M on the box might work. retired, technical library for sale on eBay -...

This might be a better question for the NFPA (fire) Code Issues forum. NFPA 12 (CO2) and NFPA 2001 (Clean Agents) may have some guidance. retired, technical library for sale on eBay - https://www.ebay.com/usr/prosafbooks

Calgary was under emergency water restrictions for over a month. City advises the pipe was designed to last 100 years and it failed at only year 49. Investigation into cause to take 1 year. https://globalnews.ca/news/10626802/calgary-feeder-main-break-ballpark-cost/ retired, technical library...

Here's a summary of some zinc LME incident references I first did about 20 years ago. retired, technical library for sale on eBay -...

This paper from a 2008 AIChE conference is available by Googling. retired, technical library for sale on eBay - https://www.ebay.com/usr/prosafbooks

For industrial, chemical, petrochemical plants NFPA is usually the minimum, with recommended good practice also being the relevant FM or GAP / AXA guidelines, e.g. FM DS 7-14 Fire Protection for Chemical Plants, FM DS 3-10 Private Fire Service Mains, GAP.17.2.1 High Hazard Chemical and...

Agree that this looks complicated enough to get a professional involved. Even if "self-insured" there is likely a contact in the organization with access to loss control / fire protection specialists, usually the insurance / risk management department. As a risk control consultant, now retired...

The Canadian Fire Codes are more restrictive than NFPA last time I checked on this detail - transfer of flammable or combustible liquids by compressed air or other non-inert gas pressure is prohibited. Re combustible liquid mists see attached

Here's a couple of standards that go into some detail on the engineering. I've seen several aboveground mounded installations at process plants, but only seen one underground cylindrical LPG tank installation (at a pipeline storage terminal).

Given the number of churches that have burned to the ground in Alberta recently and over the past few years, I would guess variances to ABC and AFC are not that easy to get.

TAPPI TIP 0606-26 Sulfuric Acid safe storage and handlinghttps://files.engineering.com/getfile.aspx?folder=4e9152a6-e165-49bf-a1f1-2e70f4756eab&file=Sulphuric_Acid_Safe_Storage_and_Handling_2012.pdf

A nice hard copy with a CD version available on my eBay technical safety / fire protection book library for sale. https://www.ebay.ca/usr/prosafbooks

It's a longtime insurance recommendation dating back to Oil Insurance Association in the 1970s. OIA later became IRI (Industrial Risks Insurers) and then published their standards as GAP (Global Asset Protection. The GAP guidelines were more recently published by AIChE CCPS in their guidelines...

georgeverghese, ideally the vent discharge is just water vapour, but typically can contain various components of the raw gas stream often both flammable and/or toxic, which is why they are now typically directed to containment / recovery. MortenA, yes the continuous hot water vapour / steam...

Glycol dehydrator reboiler still columns with vents to atmosphere in the Alberta oil & gas industry used to be commonly designed without relief devices until a few fatal incidents due to freeze off in the 1980's. Now they all have relief devices.

Excerpt from an old 1979 AIChE Loss Prevention Symposium presentation on EO process fire / explosion incidents (much improved since then).

A comparison of hydrant spacing guidelines in the attached list for interest.