DIN EN ISO 12922 : 2020 Title: Lubricants, industrial oils and related products (class L) - Family H (hydraulic systems) - Specifications for hydraulic fluids in categories HFAE, HFAS, HFB, HFC, HFDR and HFDU (ISO 12922:2020) Year: 2020 Publisher: DIN Media GmbH Availability: Within 1-2 working days