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предел огнестойкости stresses
archit.	fire endurance (измеряется в часах); fire resistance (измеряется в часах)
bridg.constr.	fire endurance (материала); fire-resistance rating (материала)
construct.	degree of fire resistance; degree of incombustibility; fire endurance period; fire-endurance rating; degree of inflammability; ultimate fire-resistance; fire endurance (материала, конструкции); fire-endurance period; fire-resistance rating (в часах); fire endurance
fire.	fire rating; fire resistance grading; fire-resistance period; fire-resistance time
O&G, sakh.	fire safety level (limit, rate)
OHS	fire resistance limit (Leonid Dzhepko)
tech.	fire-resistance rating (материала в ед. времени – АД); fire resistance rating (материала – A fire-resistance rating typically means the duration for which a passive fire protection system can withstand a standard fire resistance test. This can be quantified simply as a measure of time, or it may entail a host of other criteria, involving other evidence of functionality or fitness for purpose. wiki Alexander Demidov); fire-resistance rating (материала в ед. времени Alexander Demidov)

предел огнестойкости: 49 phrases in 10 subjects

Architecture	10
Caspian	2
Construction	12
Energy industry	4
Firefighting and fire-control systems	4
General	3
Makarov	2
Road works	1
Technology	6
Transport	5