Overview
ISO 9902-7:2001/Amd 1:2009 is an international amendment to the standard governing noise test codes specifically for textile machinery used in dyeing and finishing processes. Developed by ISO Technical Committee ISO/TC 72, Subcommittee SC 8, this amendment updates the noise measurement requirements to ensure more accurate, reliable, and consistent noise testing for various types of dyeing, finishing, and associated textile machinery.
The standard addresses engineering (grade 2) and survey (grade 3) noise test methods and applies to machines involved in preparation, dyeing, printing, coating, fixing, wetting, drying, finishing, calendering, and making-up of presentation stages in textile processing. Importantly, this amendment clarifies that the standard excludes machines for hydro (centrifugal) extraction.
Key Topics
- Noise Test Code for Textile Machinery: Provides methods for measuring and assessing noise emissions produced by dyeing and finishing machinery.
- Applicable Machinery Types: Covers a broad range of machinery used in preparation, dyeing, printing, coating, fixing, wetting, drying, finishing, calendering, and presentation processes.
- Exclusions: Explicitly excludes hydro (centrifugal) extraction machines from its scope.
- Test Method Grades:
- Engineering (Grade 2): Detailed measurements primarily for engineering purposes such as design and development.
- Survey (Grade 3): General noise emission evaluations for production or compliance purposes.
- Normative References Updated: The amendment revises references to existing related ISO standards on noise measurement (ISO 1506, ISO 3744, ISO 3746, ISO 3747, ISO 9614-1/2, ISO 11201, ISO 11202, ISO 11204), ensuring alignment with the latest versions without specific publication years.
- Integration with Part 1: Incorporates references and amendments related to ISO 9902-1 (Common requirements), ensuring consistency across noise testing procedures for textile machinery.
Applications
This standard is critical for manufacturers, testing laboratories, and regulatory bodies involved in the textile industry, especially those focused on machinery used in dyeing and finishing processes. Its practical applications include:
- Machine Design and Development: Assists manufacturers in designing machinery with noise emissions within acceptable limits, enhancing operator safety and compliance with workplace regulations.
- Compliance Testing: Enables consistent and reproducible noise emission testing to ensure compliance with occupational health and safety standards.
- Environmental Noise Management: Helps reduce environmental noise pollution by establishing standardized noise limits and measurement procedures.
- Quality Control: Supports routine noise monitoring as part of machinery quality assurance programs.
- Contractual and Procurement Specifications: Provides a reliable basis for specifying noise emission requirements in contracts and procurement processes for textile machinery.
Related Standards
ISO 9902-7:2001/Amd 1:2009 is part of the ISO 9902 series focused on noise test codes for textile machinery. Relevant related standards include:
- ISO 9902-1: Textile machinery - Noise test code - Part 1: Common requirements
- ISO 1506: Methods of measuring noise emitted by machinery and equipment
- ISO 3744, ISO 3746, ISO 3747: Various standards on engineering and survey methods for sound power measurement
- ISO 9614-1/2: Methods for determining sound power levels using sound intensity
- ISO 11201, ISO 11202, ISO 11204: Standards for noise emission measurements using sound pressure and intensity methods
Together, these standards form a comprehensive framework for measuring and managing noise emissions in the textile machinery sector, promoting safety, environmental compliance, and improved workplace conditions.
Keywords: ISO 9902-7 amendment, textile machinery noise testing, dyeing and finishing machinery, noise emission standards, engineering noise test code, survey noise test code, textile industry noise measurement, ISO/TC 72, noise test amendment, textile machinery safety standards.