WG 4 - TC 61/SC 61J/WG 4

IEC 63458-2:2026 applies to hoses, hose lines and connectors intended to be used with high-pressure water jet units within the scope of IEC 63458-1. This document deals with all significant hazards, hazardous situations and events relevant to the equipment in the scope, when it is used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer. This document deals with safety requirements to minimize the significant hazards which can arise from assembling, operating and servicing of hoses, hose lines and connectors for use with high pressure water jet machines. The hazard due to scalding from hot liquid or from irritation / burning of any added chemicals is not covered in this document.
Compliance with IEC 63458-1, IEC 63458-2 and IEC 63458-3 provides the full requirements for high pressure water jet machines.

IEC 63458-3:2026 contains safety-related requirements for spraying devices for high pressure water jet units with drives of all kinds (e.g. electric motor, internal combustion engine, air and hydraulic) in which pumps are used to generate pressure. This document deals with all significant hazards, hazardous situations and events arising during assembly, erection, operation and servicing relevant to spraying devices for high pressure water jet units, when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer. All references to spraying devices for high pressure water jet units within this document include machines for one or more of the following industrial applications:
– cleaning;
– surface preparation;
– material removal;
– readjustment of concrete;
– cutting.
This document applies to spraying devices for mobile and fixed high pressure water jet units, in which the water pressure is generated by a pressure generator/pump and in which the maximum allowable working pressure is more than the upper limit fixed in the scope of IEC 60335-2-79 (35 MPa is currently the upper limit for machines covered by IEC 60335-2-79).
This document does not cover:
– high pressure cleaners which are dealt with in IEC 60335-2-54;
– additional hazards due to the incorporation of high pressure water jet units into other process-technology machines;
– specific hazards associated with explosive atmospheres, use on ships or ambient temperatures outside the range 5 °C to 40 °C;
– hazards due to the nature of liquids used for jetting, other than that due to pressure;
– hazards associated with the drives or specific hazards due to any heat generation function. However, the hazards due to high temperatures of touchable surfaces are dealt with;
– high pressure water jet units which are manufactured before the date of its publication as IEC;
– high pressure water jet hoses which are covered by IEC 63458-2.
Tests according to this document are type tests unless they relate to routine (informative) tests to be carried out during series manufacture.
Compliance with IEC 63458-1, IEC 63458-2 and IEC 63458-3 provide the full requirements for high pressure water jet machines.

IEC 63458-1:2026 contains safety-related requirements for high pressure water jet units with drives of all kinds (e.g. electric motor, internal combustion engine, air and hydraulic) in which pumps are used to generate pressure. This document deals with all significant hazards, hazardous situations and events arising during assembly, erection, operation and servicing relevant to high pressure water jet units, when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer. All references to high pressure water jet units within this document include machines for one or more of the following industrial applications:
– cleaning;
– surface preparation;
– material removal;
– readjustment of concrete;
– cutting.
This document applies to mobile and fixed high pressure water jet units, in which the water pressure is generated by a pressure generator/pump and in which the maximum allowable working pressure is more than the upper limit fixed in the scope of IEC 60335-2-79 (35 MPa is currently the upper limit for machines covered by IEC 60335-2-79).
This document does not cover:
– high pressure cleaners which are dealt with in IEC 60335-2-54;
– additional hazards due to the incorporation of high pressure water jet units into other process-technology machines;
– specific hazards associated with explosive atmospheres, use on ships or ambient temperatures outside the range 5 °C to 40 °C;
– hazard due to the nature of liquids used for jetting, other than that due to pressure;
– hazards associated with the drives or specific hazards due to any heat generation function. However, the hazards due to high temperatures of touchable surfaces are dealt with;
– high pressure water jet units which are manufactured before the date of its publication as IEC standard;
– high pressure water jet hoses which are covered by IEC 63458-2;
– high pressure water jet spraying device which are covered by IEC 63458-3;
Tests according to this document are type tests unless they relate to routine (informative) tests to be carried out during series manufacture.
Compliance with IEC 63458-1, IEC 63458-2 and IEC 63458-3 provides the full requirements for high pressure water jet machines.

IEC 60335-2-124:2024 deals with the safety of dry ice blasting machines intended for commercial indoor or outdoor use for the hand-guided cleaning, decoating and stripping of surfaces. The blasting machines are either equipped with containers for storage of dry ice or produce dry ice internally. These machines are not equipped with a traction drive.
The following power systems are covered:
- mains powered motors up to a rated voltage of 250 V for single-phase appliances and 480 V for other appliances,
- battery-operated machines.
This standard does not apply to
- dry ice blasting machines with integrated generation of compressed air;
- dry ice blasting machines using other transport gases besides compressed air or nitrogen;
- dry ice blasting machines with nozzles being controlled by robotic arms;
- spray extraction machines for commercial use (IEC 60335-2-68);
- high pressure cleaners (IEC 60335-2-79);
- sand blasting equipment (abrasive blasting);
- hand-held and transportable motor-operated electric tools (IEC 60745 series, IEC 61029 series, IEC 62841 series);
- machines designed for use in corrosive or explosive environments (dust, vapour or gas);
- machines designed for use in vehicles in non-ventilated environment;
- machines designed for use on board of ships or aircraft.