further to the above, the FIA introduced a new standard back in 2019 - FIA8856-2018. It runs alongside the -2000 standard but gives longer / better resistance to fire. If buying a new suit it would be prudent to go for the new standard. More info on the DTs site:
https://blog.demon-tweeks.com/motors...-it-affect-me/
Note that the new standard introduces lifing for race suits for the first time, at a reasonable 10 years.
I imagine that Grosjean was grateful for the extra protection in the Bahrain incident.