BS ISO 6805:2020 pdf free.Rubber hoses and hose assemblies for underground mining一Wire-reinforced hydraulic types for coal mining一Specification.
BS ISO 6805 This document specifies requirements for wire-reinforced hoses and hose assemblies for underground coal mining applications of nominal sizes 6,3 to 51 for use with:
oil-based hydraulic fluids HH, HL, HM, HR and HV as defined in ISO 6743-4 at temperatures ranging from -40 °Cto +120 °C;一water-based fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743-4 at temperatures ranging from -40。C to +70 °C;water at temperatures ranging from 0 °C to +70 °C.There is a possibility that operation at the extremes of or outside these temperature ranges materially reduce the life of the hose. These hoses are not suitable for use with fluids that have a castor oil or ester base.2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 8030, Rubber and plastics hoses一. Method of test for flammability ISO 8031, Rubber and plastics hoses and hose assemblies一Determination of electrical resistance and conductivity ISO 8330, Rubber and plastics hoses and hose assemblies一Vocabulary ISO 18752, Rubber hoses and hose assemblies一Wire- or textile-reinforced single-pressure types for hydraulic applications一Specification.Hoses shall consist of a hydraulic-fluid-resistant rubber lining, one or multiple layers of steel wire reinforcement, and an oil-, abrasion- and weather-resistant rubber cover. A layer of other materials on the rubber cover is allowed for improved resistance to abrasion or other properties. The hose shall be conductive and fire-resistant.5.2 Hose assemblies Hose assemblies shall only be manufactured using hose fittings which conform to the requirements of ISO 18752. Hose fittings shall be matched to the hose and assembled in accordance with the manufacturer’s instructions for the proper preparation and fabrication of hose assemblies. Hose assemblies shall meet the frequency testing specified in Clause Z.BS ISO 6805 pdf download.