BS EN ISO 12922:2020
润滑剂、工业润滑油和有关产品(L类) H族(液压系统) HFAE、HFAS、HFB、HFC、HFDR和HFDU各类的规格
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