GOST R 57471-2017 (Amendment No. 1) Explosion-proof metal structures. General Technical Requirements and Test Methods" is a national standard that establishes the classification, technical requirements and test methods of metal blast protection barriers (panels, doors, gates, hatches and window blocks) used to fill the openings of vertical blast protection fences.
The standard was developed by JSC “Alfa” and introduced by the Technical Committee for Standardization TC 391 “Physical protection equipment and materials for their manufacture”.
The full text of the standard is subject to copyright and is not reproduced on the site. The standard can be found in official sources:
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