Повучен
ISO 10438-4:2007 in conjunction with ISO 10438-1 specifies requirements for support systems for self-acting gas seals (dry gas seals), for example as described in ISO 10439 and ISO 10440-1. These systems can serve equipment such as compressors, gears, pumps and drivers.
ПОВУЧЕН
ISO 10438-4:2003
ПОВУЧЕН
ISO 10438-4:2007
95.99
Повучен
18. 11. 2021.
ОБЈАВЉЕН
ISO 6368:2021
Industrija nafte, petrohemije i prirodnog gasa - Podmazivanje, osovinsko zaptivanje i sistemi za kontrolu ulja i pomoćna oprema - Deo 4: Sistemi podrške samoaktivirajućeg gasnog zaptivanja
95.99 Повучен