Identify the equipment and its conditions
Royal Decree 486/2010 establishes Spain’s risk assessment requirements for artificial optical radiation. For lasers, these include the relevant classification and manufacturer information, together with exposure duration, wavelength and level.
The inventory should identify the model, location, applications and people affected. A label alone does not describe every work scenario or establish that the equipment retains its intended safety conditions.
Separate use from intervention
Routine production, adjustment, cleaning and maintenance must be explicitly analysed. Opening an access point, changing an optical component or intervening in a safeguard may change accessible exposure compared with normal operation.
Interventions require competent people, manufacturer instructions and measures defined for that situation. Adjustment procedures must not be improvised or safeguards defeated to maintain production.
Control the beam path and access
The INSST explains that laser radiation concentrates energy and may remain hazardous at a distance. Assessment must consider direct exposure and reflections, without assuming that the risk ends at the workpiece.
Article 4 of Royal Decree 486/2010 prioritises technical solutions, maintenance and organisation. Where appropriate, enclosures, barriers and access systems must prevent exposure, with signs and boundaries consistent with assessment findings.
Select specific eye protection
The INSST selection guide distinguishes laser protective eyewear from alignment eyewear. Markings identify wavelengths, conditions and protection level, among other information.
A dark filter or eyewear intended for conventional welding is not enough. Selection must reflect the laser, task and manufacturer information. Damaged protectors must be withdrawn, and wearing them does not authorise looking into the beam.
Consider associated risks
Alongside eye and skin exposure, indirect effects and other process hazards must be assessed. Fire, glare, fumes from the material being treated, electricity or machine movement may be relevant.
Each risk needs its own controls. Suitable laser protection does not demonstrate that fume extraction is adequate; nor does a complete electrical assessment resolve optical exposure.
Review changes and prepare the response
Assessment requires qualified personnel and must be updated when relevant conditions change, under Royal Decree 486/2010. Record modifications, safeguard checks and instructions provided to users and maintenance personnel.
The incident procedure must enable exposure to stop, events to be reported and appropriate medical attention to be obtained. Investigation should review causes and measures before safe working conditions are restored.
Hypothetical example: external maintenance
A company contracts maintenance of a laser marking machine. It checks that the planned intervention requires access different from that used during production.
Before work, it agrees area boundaries, intervention conditions and final checks with the maintenance contractor. The classification shown for normal use is not used to justify omitting assessment of that specific operation.
