ISO 9902-4:2001/Amd 2:2014

Overview

ISO 9902-4:2001/Amd 2:2014 is an amendment to the international standard focused on the noise testing of textile machinery. Specifically, it addresses noise test codes applicable to yarn processing machines as well as cordage and rope manufacturing equipment. This document supplements the original ISO 9902-4:2001 standard by refining measurement guidelines and testing protocols to improve the assessment of noise emissions in this sector.

Developed by ISO Technical Committee ISO/TC 72, Subcommittee SC 8, which specializes in safety requirements for textile machinery, this amendment reflects advances and practical considerations in noise measurement techniques applicable to yarn and rope manufacturing machinery. The standard supports the textile industry in meeting workplace safety and environmental noise regulations effectively.

Key Topics

• Noise Test Code for Textile Machinery: Provides standardized methods for the measurement and assessment of noise generated by yarn processing, cordage, and rope manufacturing machines.
• Measurement Conditions: Emphasizes the challenges in achieving grade 1 precision due to the complex operational environments of textile machinery, noting that grade 1 methods are generally not feasible.
• Safety and Compliance: Aids manufacturers and operators in ensuring their equipment meets international noise emission limits, contributing to safer and healthier workplace environments.
• Technical Scope: Covers machines involved in processing yarn, producing cordage, and manufacturing ropes, crucial sectors within the textile machinery industry.
• Standard Maintenance: Developed and maintained according to ISO/IEC Directives to ensure up-to-date requirements aligned with global best practices.

Applications

This amendment to ISO 9902-4 is essential for:

• Textile Machinery Manufacturers
  To design, test, and certify yarn processing and rope manufacturing machinery compliant with international noise emission standards.

• Quality Assurance Teams
  To implement standardized noise testing procedures, improving product consistency and safety benchmarks.

• Workplace Safety Officers
  To evaluate and mitigate noise hazards in textile manufacturing environments, reducing hearing damage risks to workers.

• Regulatory Compliance Bodies
  To verify adherence to noise emission restrictions imposed by occupational health and safety regulations.

• Machinery Maintenance and Engineering Departments
  To monitor equipment noise performance over time to maintain operational standards and improve machinery lifespan.

Related Standards

• ISO 9902 Series
  Other parts of the ISO 9902 standard address noise testing for different types of textile machinery, including spinning and weaving equipment.

• ISO/IEC Directives
  Guide the development and maintenance of ISO standards generally, ensuring consistency and international applicability.

• ISO 11202
  Standard on the measurement of airborne noise emitted by machinery, which may complement the noise test codes in textile machinery.

• ISO 9614
  Standards for sound intensity measurement useful for detailed noise analysis in industrial equipment.

• Occupational Noise Standards (e.g., ISO 1999)
  Define criteria for worker exposure to noise and evaluation of hearing loss risks linked to machinery noise levels.

ISO 9902-4:2001/Amd 2:2014 is a key reference for robust noise testing protocols in yarn processing, cordage, and rope manufacturing machinery. Its adoption helps align textile machinery design and operation with international safety norms, promoting safer industrial environments and regulatory compliance.