DIN EN ISO 12922:2013 润滑剂, 工业用油及相关产品(L类). H系列(液压系统). HFAE, HFAS, HFB, HFC , HFDR和HFDU类液压液规范(ISO 12922-2012); 德文版本EN ISO 12922-2012
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 12922:2012); German version EN ISO 12922:2012