I have some information re. our approving for gost.
This is from our last approving for Russia.
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Just to systemize the GOST-R certification issue:
Normally , there are 3 types of certificates that mayby require for the vessels/plants that exported to Russia :
a) . GOST-R - (certificate of correspondence) mainly requires for customs purposes and therefore only needs once the equipment proceeds custom clearance. Normally is this paper organized once the equipment is dispatched or at least packed
and we know exactly, how many collies is packed. That is for making individual GOST-R
b) Hygenik (or sanitary-epidemiological resolution) as GOST-R requires by customs, but only sometimes (do not ask me when and why? This algorithm of Russian customs is completely out my understanding

.
c) RTN-permit a cerificate paper that allows to use equipment in Russia , it requires by
authorities (ROSTEKHNADZOR - Russian technical supervisor committee). Certain equipment is being considered as potentionaly dangerous or hazardous (pressure vessels, ammonia equipment ,neutral gas equipment etc.)
I hope this gives a better understanding