ISO 9902-1:2001/Amd 1:2009

Overview

ISO 9902-1:2001/Amd 1:2009 is an amendment to the international standard defining the noise test code for textile machinery. This amendment updates the common requirements for noise measurement and reporting applicable to a wide range of textile machines, as governed by ISO 11111. It reflects the ongoing commitment to improving workplace safety and environmental noise management within the textile industry.

This standard forms part of the ISO 9902 series and specifically addresses noise emissions from machines, equipment, and installations in textile manufacturing. The amendment refines definitions, references, and procedural rules to enhance consistency and accuracy in noise testing.

Key Topics

• Scope Refinement: The amendment clarifies that the standard applies to all textile machinery and installations compliant with ISO 11111, excluding only transport equipment interfacing machines.
• Updated Normative References: Several referenced ISO standards related to sound power and sound pressure measurements (for example, ISO 3740, ISO 11200 series) have been revised by removing publication years to ensure ongoing relevance with latest versions.
• Noise Measurement Adjustments: For very large textile machines (marked “L”), the requirement for sound power level assessments is relaxed; only sound pressure levels need to be recorded.
• Terminology and Reporting: Noise emission terminology aligns with ISO 3744 and ISO 3746 standards, ensuring consistent and clear communication. The amendment mandates noise emission data disclosure within accompanying machine documentation, linking with ISO 12100-2 safety guidelines.
• Exclusion of Certain References: Removal of outdated or superseded standards, such as EN 292-2:1991/A1:1995, reflecting current international practice.

Applications

ISO 9902-1:2001/Amd 1:2009 is essential for manufacturers, safety engineers, and compliance officers in the textile industry focused on:

• Noise Control Compliance: Ensuring machines meet noise regulations to protect workers' hearing and workplace health.
• Environmental Noise Assessment: Measuring noise emissions to minimize environmental impacts around manufacturing facilities.
• Machine Design and Testing: Assisting designers in developing quieter machinery through standardized noise measurement techniques.
• Documentation and Certification: Providing uniform noise emission data for product documentation and regulatory certification.
• Integration in Automated Production: Applicable to both standalone and complex automated textile machinery setups.

Related Standards

This amendment is closely linked to several important ISO standards for textile machinery and acoustics:

• ISO 11111 (all parts): Defines overall safety requirements for textile machinery, to which ISO 9902-1 noise testing applies.
• ISO 3740 series: Fundamental sound power determination methods.
• ISO 11200 series: Addresses various noise emission characterization methodologies for machinery.
• ISO 12100-2: Provides safety-related additional information for machine documentation, including noise data requirements.
• ISO 3744 and ISO 3746: Define measurement methods and terminology for noise emission data relevant to this amendment.

By adhering to ISO 9902-1:2001/Amd 1:2009, stakeholders in textile machinery benefit from precise acoustic testing protocols that support regulatory compliance, worker safety, and environmentally responsible manufacturing processes. This amendment ensures the noise test code remains up to date with evolving standards and industry needs.