ISO 10524-2:2018
Pressure regulators for use with medical gases — Part 2: Manifold and line pressure regulators
ISO 10524-2:2018 specifies design, construction, type testing, and marking requirements for manifold pressure regulators (as defined in 3.7) and line pressure regulators (as defined in 3.5) intended for use in medical gas pipeline systems.
Examples of gases include oxygen, medical air and oxygen/nitrous oxide mixtures.
ISO 10524-2:2018 applies to manifold pressure regulators and line pressure regulators supplied as individual units or to the relevant components incorporated within an assembly.
Manifold pressure regulators are intended to be connected to a manifold system which has a nominal inlet pressure, P1 of up to 30 000 kPa (300 bar).
Line pressure regulators are intended to be connected downstream of the manifold pressure regulator with a supply pressure up to 3 000 kPa (30 bar).
ISO 10524-2:2018 does not apply to pressure regulators for use with vacuum pipeline systems.
NOTE Requirements for pressure regulators for use with vacuum pipeline systems are covered in ISO 10079‑3.
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Foreword
Introduction
1 * Scope
2 Normative references
3 Terms and definitions
4 Nomenclature
5 General requirements
5.1 Safety
5.2 Usability
5.3 Alternative construction
5.4 Materials
6 Design requirements
6.1 General
6.2 Pressure gauges
6.3 Integrated digital gauges
6.4 Pressure-adjusting device
6.5 Filtration
6.6 Mechanical strength
6.6.1 Resistance of the high-pressure side
6.6.2 Resistance of the low-pressure side to pneumatic pressure
6.6.3 Resistance of the low pressure side to P1
6.7 Endurance
6.8 Manifold pressure regulators
6.8.1 * Inlet connector
6.8.2 Outlet connector
6.8.3 Leakage
6.8.4 Functional and flow characteristics
6.8.5 Pressure-relief device
6.8.6 * Resistance to ignition
6.8.7 Nominal inlet pressure
6.9 Line pressure regulators
6.9.1 * Inlet connector
6.9.2 Outlet connector
6.9.3 Leakage
6.9.4 Outlet pressure variation limits
6.9.5 * Resistance to ignition of sealing materials and lubricants
6.9.6 Nominal inlet pressure
7 Construction requirements
7.1 * Cleanliness
7.2 Lubricants
8 Test methods for type tests
8.1 General conditions
8.1.1 General
8.1.2 Ambient conditions
8.1.3 Test gas
8.1.4 Reference conditions
8.2 Test schedule
8.3 Test methods for manifold pressure regulators
8.3.1 Test equipment for functional and flow characteristics
8.3.2 Test method for determining standard discharge, Q1
8.3.3 Test method for determining the coefficient of pressure increase upon closure
8.3.4 Test method for determining the irregularity coefficient
8.3.5 Test method for pressure-relief device
8.3.6 Test methods for leakage
8.3.7 Test method for mechanical strength
8.3.8 Test method for resistance to ignition
8.4 Test method for line pressure regulators
8.4.1 Test method for measuring the variation of the outlet pressure
8.4.2 Test methods for leakage
8.4.3 Test method for mechanical strength
8.4.4 Test method for determination of the auto-ignition temperature of sealing materials and lubricants
8.5 Endurance test
8.6 Test method for durability of markings and colour coding
9 Marking, colour coding, and packaging
9.1 Marking
9.2 Colour coding
9.3 Packaging
10 Information to be supplied by the manufacturer
Annex A (informative) Examples of pressure regulators
Annex B (informative) Rationale
Annex C (informative) Reported regional and national deviations of colour coding and nomenclature for medical gases
Bibliography
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Foreword
Introduction
1 * Scope
2 Normative references
3 Terms and definitions
4 Nomenclature
5 General requirements
5.1 Safety
5.2 Usability
5.3 Alternative construction
5.4 Materials
6 Design requirements
6.1 General
6.2 Pressure gauges
6.3 Integrated digital gauges
6.4 Pressure-adjusting device
6.5 Filtration
6.6 Mechanical strength
6.6.1 Resistance of the high-pressure side
6.6.2 Resistance of the low-pressure side to pneumatic pressure
6.6.3 Resistance of the low pressure side to P1
6.7 Endurance
6.8 Manifold pressure regulators
6.8.1 * Inlet connector
6.8.2 Outlet connector
6.8.3 Leakage
6.8.4 Functional and flow characteristics
6.8.5 Pressure-relief device
6.8.6 * Resistance to ignition
6.8.7 Nominal inlet pressure
6.9 Line pressure regulators
6.9.1 * Inlet connector
6.9.2 Outlet connector
6.9.3 Leakage
6.9.4 Outlet pressure variation limits
6.9.5 * Resistance to ignition of sealing materials and lubricants
6.9.6 Nominal inlet pressure
7 Construction requirements
7.1 * Cleanliness
7.2 Lubricants
8 Test methods for type tests
8.1 General conditions
8.1.1 General
8.1.2 Ambient conditions
8.1.3 Test gas
8.1.4 Reference conditions
8.2 Test schedule
8.3 Test methods for manifold pressure regulators
8.3.1 Test equipment for functional and flow characteristics
8.3.2 Test method for determining standard discharge, Q1
8.3.3 Test method for determining the coefficient of pressure increase upon closure
8.3.4 Test method for determining the irregularity coefficient
8.3.5 Test method for pressure-relief device
8.3.6 Test methods for leakage
8.3.7 Test method for mechanical strength
8.3.8 Test method for resistance to ignition
8.4 Test method for line pressure regulators
8.4.1 Test method for measuring the variation of the outlet pressure
8.4.2 Test methods for leakage
8.4.3 Test method for mechanical strength
8.4.4 Test method for determination of the auto-ignition temperature of sealing materials and lubricants
8.5 Endurance test
8.6 Test method for durability of markings and colour coding
9 Marking, colour coding, and packaging
9.1 Marking
9.2 Colour coding
9.3 Packaging
10 Information to be supplied by the manufacturer
Annex A (informative) Examples of pressure regulators
Annex B (informative) Rationale
Annex C (informative) Reported regional and national deviations of colour coding and nomenclature for medical gases
Bibliography