BS ISO 6805:2020 pdf free

04-22-2021 comment

BS ISO 6805:2020 pdf free.Rubber hoses and hose assemblies forunderground mining — Wire-reinforced hydraulic types for coal mining — Specification.
1.Scope:This document specifies requirements for wire-reinforced hoses and hose assemblies for undergroundcoal 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 rangingfrom -40 C to 120°C;
water-based fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743-4 at temperatures rangingfrom -40 C to 70C;water at temperatures ranging from o C to 70℃.There is a possibility that operation at the extremes of or outside these temperature ranges materiallyreduce the life of the hose. These hoses are not suitable for use with fluids that have a castor oilor ester base.
2.Normative references:The following documents are referred to in the text in such a way that some or all of their contentconstitutes requirements of this document.For dated references,only the edition cited applies. Forundated references, the latest edition of the referenced document (including any amendments) applies.ISO 8030, Rubber and plastics hoses — Method of test for flammability
ISO 8031,Rubber and plastics hoses and hose assemblies — Determination of electrical resistance andconductivity
ISO 8330,Rubber and plastics hoses and hose assemblies — Vocabulary
ISO 18752,Rubber hoses and hose assemblies — Wire- or textile-reinforced single-pressure types forhydraulic applications—Specification
3.Terms and definitions:For the purposes of this document, the terms and definitions given in ISo 8330 apply.
Type testing and routine testing shall be as specified in IS0 18752:2014, Annex A.In addition, electricalresistance and flame resistance tests are required for type testing, but not for routine testing.
Type tests are those tests required to confirm that a particular hose design,manufactured by aparticular method,meets all the requirements of this document. The tests shall be repeated at amaximum of five-year intervals,or whenever a change in the method of manufacture or materials usedoccurs. They shall be performed on all sizes, and on all classes and types except those of the same sizeand construction.
Routine tests are those tests required to be carried out on each length of finished hose prior to dispatch.Production acceptance tests are those tests, specified in ISO 18752:2014,Annex B, which shouldpreferably be carried out to control the quality of manufacture. The frequencies specified iniso 18752:2014,Annex B are given as a guidance only.BS ISO 6805 pdf download.

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