SIST EN ISO 9902-3:2002/A2:2014 PDF

Overview

EN ISO 9902-3:2001/A2:2014 - "Textile machinery - Noise test code - Part 3: Nonwoven machinery - Amendment 2" is a CEN/ISO document amending the existing ISO 9902-3 test code for measuring noise emitted by nonwoven textile machinery. It updates the test-code framework used to assess machine noise emissions and aligns the European implementation with the ISO draft amendment prepared by ISO/TC 72 SC 8. The amendment was processed in parallel by CEN and ISO and includes a CEN annex relating the standard to EU machinery directives.

Key topics and requirements

• Scope: Applies to noise testing of nonwoven textile machinery and complements the broader ISO 9902 series for textile machinery noise measurement.
• Test code framework: Maintains the structure of ISO 9902-3 (measurement conditions, test set-up, instrumentation requirements and reporting) as the basis for consistent acoustic assessment of nonwoven machines.
• Measurement-grade note: Amendment 2 explicitly notes that grade 1 measurement methods (the highest-precision level) are normally not feasible for textile machinery because of the demanding measurement conditions they require. This guidance affects choice of practicable measurement grades for industry testing.
• Regulatory linkage: Includes an informative Annex ZA describing the relationship between the standard and the Essential Requirements of EU machinery directives, supporting a presumption of conformity when the standard is cited in the Official Journal.
• Technical oversight: Prepared by ISO/TC 72 (Textile machinery), Subcommittee SC 8 (Safety), and coordinated with CEN/TC 214.

Practical applications

• Machine manufacturers use the standard to:
  • Specify acoustic performance during design and acceptance testing.
  • Provide standardized noise data in technical documentation and declarations.
• Independent acoustic test laboratories and in‑house test teams use it to:
  • Develop repeatable test procedures and reports for nonwoven equipment.
  • Compare machine models and validate sound-reduction measures.
• Safety engineers, product compliance officers and purchasers use it to:
  • Assess worker exposure risk and select machinery that meets regulatory noise limits.
  • Demonstrate conformity with EU machinery directives through standardized test evidence.

Who should use this standard

• Textile and nonwoven machinery manufacturers
• Acoustic testing laboratories and consultants
• Product safety and compliance teams
• Standards committees and regulatory authorities

Related standards

• ISO 9902 series (other parts for different textile machinery types)
• National and EU machinery directives referenced in Annex ZA (for conformity assessment and regulatory compliance)

Keywords: EN ISO 9902-3:2001/A2:2014, textile machinery noise test code, nonwoven machinery, noise measurement, acoustic testing, machine noise emissions, ISO 9902 amendment, EU machinery directive.