EN ISO 11553-3:2013 PDF

Overview

EN ISO 11553-3:2013 (ISO 11553-3:2013) specifies noise reduction and standardized noise measurement methods for laser processing machines, hand‑held laser processing devices and associated auxiliary equipment. The standard defines how to determine, declare and verify airborne noise emission - including emission sound pressure levels at workstations and sound power level - so manufacturers, test labs and users can reliably compare equipment on the market. Measurements follow a noise test code (Annex A) and meet an engineering measurement accuracy grade 2.

Key topics and technical requirements

• Scope and applicability: Applies to machines and hand‑held devices covered by ISO/IEC 11553‑1 and ISO/IEC 11553‑2.
• Noise hazards: Identifies health and performance effects such as permanent hearing loss, tinnitus, stress, communication interference and missed acoustic warnings.
• Noise reduction in design: Requires that noise reduction be integrated in the design phase and assessed against determined emission values.
• Measurement methods and conditions: Specifies the test code, installation and operating conditions required to produce reproducible results (accuracy grade 2).
• Declared values and verification: Defines the information manufacturers must supply for declaration and for third‑party verification of noise emissions.
• Information for users: Requires clear user information to support safe installation, operation and PPE selection.

Practical applications and users

Who uses EN ISO 11553-3:

• Manufacturers of laser cutting, welding and processing machines and hand‑held laser devices - for product design, declaration and conformity.
• Acoustical test laboratories - to perform reproducible noise emission tests (accuracy grade 2).
• Safety and compliance engineers - to assess machine risk and meet Machinery Directive requirements.
• Procurement and facility managers - to compare noise performance across products and plan workplace controls.
• Acoustic consultants and designers - to specify noise‑reduction measures and validate mitigation performance.

Practical uses:

• Producing standardized noise declarations for datasheets.
• Verifying compliance with machine safety and noise regulations.
• Designing, selecting or retrofitting noise controls (enclosures, damping, isolation).
• Determining hearing protection needs and layout of workstations.

Related standards

Key normative references included in EN ISO 11553‑3:

• ISO/IEC 11553‑1, ISO/IEC 11553‑2 (laser machine safety parts 1 & 2)
• ISO 3744, ISO 3746 (sound power determination)
• ISO 11201, ISO 11202, ISO 11204 (emission sound pressure at workstations)
• ISO 9614‑2 (sound intensity scanning)
• ISO 4871 (declaration and verification of noise emission values)
• ISO 12100, IEC 61672‑1, EN 352‑1

Using EN ISO 11553‑3 helps ensure reproducible, comparable noise data for laser equipment and supports regulatory conformity, safer workplaces and informed purchasing decisions.