CEN/TC 121/SC 9 - Health and safety in welding and allied processes

ISO 15012-1:2004 deals with the significant hazards caused by the emission of welding fume particles from welding fume separation equipment operated according to its intended use and under the conditions foreseen by the manufacturer.
ISO 15012-1:2004 specifies safety requirements concerning the separation of welding fumes and describes a method for determining the particle separation efficiency of welding fume separation equipment.
ISO 15012-1:2004 does not deal with:
hazards caused by gases emitted by welding, cutting and allied processes or by the welding fume separation equipment itself; hazards caused by the noise and vibrations of the welding fume separation equipment; other fundamental aspects of safety technology, such as electrical, mechanical and pneumatical safety, maintenance, etc.

ISO/TS 15011-5:2006 specifies procedures for obtaining information about thermal degradation products generated when welding, cutting through, preheating and straightening products composed wholly or partly of organic substances, e.g. shop primers, paints, adhesives, waxes, sealants, pressing lubricant, oils, etc. It is aimed primarily at test laboratories performing such procedures. The data generated may be used by product manufacturers to provide information for inclusion in safety data sheets and by occupational hygienists to identify thermal degradation products of significance in the performance of risk assessments and/or workplace exposure measurements. The data cannot be used to estimate workplace exposure directly.
ISO/TS 15011-5:2006 is applicable to all products composed partly or wholly of organic materials that could be heated, during welding and cutting, to temperatures at which thermal degradation products are generated and where it is not apparent what those degradation products will be.

This part of prEN ISO 10882 specifies a procedure for personal sampling of airborne particles in welding and allied processes. The procedure describes determination of personal exposure to welding fume and other airborne particles generated by welding related operations. The general background level of airborne particles in the workplace atmosphere influences personal exposure, and therefore the role of fixed point sampling is also considered.

This standard provides guidance on the determination of emission rates of gases generated by arc welding using a fume box technique. It describes the test principle, gives a possible fume box arrangement and considers methods for sampling and analysis.
The following gases that can be produced during arc welding are covered:
- Carbon monoxide (C0);
- Carbon dioxide (C02);
- Nitrogen oxide (NO);
- Nitrogen dioxide (N02).
The fume box described in this standard may also be used for the determination of organic gases produced in the arc welding of coated metals, e.g. primed, painted or plastic coated material (see annex A for further information).
Ozone is considered in prEN ISO 15011-3.

This standard defines a laboratory method for evaluating ozone emissions generated during arc welding by measuring ozone concentrations at fixed points around a stationary welding arc.
The results may be used to compare the effect of welding parameters, processes, etc. on ozone generation and hence to predict changes in workplace exposure under similar working conditions.

This part of European Standard describes a method for the determination of particulate fume emission rate from arc welding processes using a fume box technique. It defines a method of sampling particulate fume for chemical analysis and suggests possible analytical techniques.

This standard specifies safety requirements for transparent welding curtains strips and screens to be used for shielding of working places from the surroundings where arc welding processes are used. They are designed to protect  people from hazardous radiant emissions from welding arcs and spatter. Welding curtains, strips and screens specified in this standard are not intended to replace welding filters.