Table of Contents
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AS 3997.2:1993 FLUID POWER - FIRE-RESISTANT HYDRAULIC FLUIDS - GUIDANCE ON THE SELECTION, USE AND STORAGE
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1 SCOPE
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2 APPLICATION
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3 REFERENCED DOCUMENTS
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4 GENERAL CONSIDERATIONS FOR THE USE OF FIRE-RESISTANT HYDRAULIC FLUIDS
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4.1 Fluid flowlines
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4.2 Work on hydraulic systems
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4.3 Fluid temperature
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4.4 Fluid degradation
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4.5 Installation and maintenance
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4.6 Fluid monitoring
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4.7 Evaporation effects
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4.8 Equipment performance
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4.9 Strainers and filters
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4.10 Circuit design
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4.11 Compatibility with metals
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4.12 Compatibility with coatings and paint
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4.13 Compatibility with sealing devices
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5 REQUIREMENTS FOR FIRE-RESISTANT HYDRAULIC FLUIDS
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5.1 Properties
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5.2 Flammability tests
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5.3 Toxicity
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6 CHARACTERISTICS OF FIRE-RESISTANT FLUIDS
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6.1 Oil-in-water emulsions and chemical solutions in water (classifications HFEA, HFAET, HFAS and HFAST)
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6.2 Water-in-oil emulsions (classification HFB)
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6.3 Water polymer solutions (classification HFC)
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6.4 Synthetic fluids containing no water (classification HFDR, HFDS, HFDT and HFDU)
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7 PRECAUTIONS AND CONSIDERATIONS
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7.1 Oil in water emulsions (classification HFAE and HFAET) and chemical solutions in water (classification HFAS and HFAST)
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7.1.1 General
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7.1.2 Elastomers
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7.1.3 Mixing
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7.1.4 Monitoring
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7.1.5 Temperature limits
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7.2 Water in oil emulsions (classification HFB)
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7.2.1 General
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7.2.2 Elastomers
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7.2.3 Metal
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7.2.4 Mixing
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7.2.5 Monitoring
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7.2.6 Temperature limits
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7.3 Water polymer solutions (classifications HFC)
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7.3.1 Elastomers
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7.3.2 Metals
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7.3.3 Monitoring
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7.3.4 Temperature limits
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7.4 Synthetic fluids containing no water (classifications HFDR, HFDS, HFDT and HFDU)
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7.4.1 General
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7.4.2 Elastomers
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7.4.3 Metals
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7.4.4 Monitoring
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7.4.5 Temperature limits
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8 CHANGING THE FLUID IN A HYDRAULIC SYSTEM
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8.1 Replacement of a mineral oil with an HFA, HFB, HFC or a HFD fluid
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8.2 Replacement of an HFA, HFB or an HFC fluid with an HFD fluid
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8.3 Replacement of an HFD fluid with an HFA, HFB or an HFC fluid
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9 MARKING, STORAGE, HANDLING AND DISPOSAL
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9.1 Containers
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9.1.1 General
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9.1.2 Marking
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9.2 Storage
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9.3 Handling
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9.4 Disposal
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APPENDIX A - FLAMMABILITY TESTS FOR FIRE-RESISTANT HYDRAULIC FLUIDS
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APPENDIX B - TYPICAL MATERIALS SAFETY DATA SHEETS
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APPENDIX C - RECOMMENDATIONS FOR CHANGING THE FLUID IN A HYDRAULIC SYSTEM
Abstract
Provides guidance on the selection, use and storage of fire-resistant hydraulic fluids classified in accordance with AS 3997.1. The characteristics of fluids of each classification are described and the recommended procedures and precautions to be taken when changing the fluid in a hydraulic system from a mineral oil to a fire-resistant fluid or from a fire-resistant fluid to another of a different classification are given.
Scope
This document provides guidelines for the selection and use of fire-resistant hydraulic fluids classified in accordance with AS 3997.1. Operational characteristics of various categories of fire-resistant fluids are given. The advantages and disadvantages in the use of these fluids are included, together with precautions to avoid difficulties during operation and when changing a system to a fluid of another classification.
NOTE: Tests to determine the flammability of fire-resistant hydraulic fluids in different situations are given in Appendix A.
General Product Information
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Published
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Document Type
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Standard |
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Status
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Current |
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Publisher
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Standards Australia
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ProductNote
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Pending Revision indicates that as a result of the Aged Standards review process, the document needs updating. If no project proposal, meeting the quality criteria, is received within the 12 month timeframe, the document shall be withdrawn. |
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Pages
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ISBN
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Committee
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ME-035 |
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Supersedes
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