ISO 29042-7:2010

Overview

ISO 29042-7:2010 is an international standard published by ISO focusing on the safety of machinery through the evaluation of the emission of airborne hazardous substances. Specifically, this part of the ISO 29042 series specifies a test bench method for measuring the pollutant concentration parameter emitted by machines under defined operating conditions. This method applies exclusively to gases, vapours, and respirable particles emitted during machine operation.

The standard provides a structured approach to assess emissions using a controlled test bench environment. It supports manufacturers, safety engineers, and regulatory bodies in quantifying pollutant emissions to ensure machinery complies with safety requirements and environmental regulations.

Key Topics

• Test Bench Setup
  The standard outlines the design of a test bench consisting of a test cabin, funnel, and air mover to generate a controlled airflow. The machine under test is placed inside a test cabin of specified dimensions, ensuring pollutant emissions are captured accurately at prescribed measurement planes within the exhaust duct or funnel region.

• Pollutant Concentration Parameter (Pcc)
  Measurement focuses on determining the pollutant concentration at specific locations. The pollutant concentration parameter (Pcc) is calculated as the sum of the mean value and the 95% confidence interval, providing a statistically representative figure of the hazardous substance concentration emitted.

• Measurement Procedures
  The machine is operated under normal working conditions on the test bench, with emissions measured during typical operational cycles. Multiple test runs are required to ensure reliable data. The measurement methods must comply with related international standards and detailed procedures specified in relevant type-C standards that cover particular machine types.

• Emission Types Covered
  The method applies exclusively to airborne hazardous substances including gases, vapours, and breathable particles produced by machinery operations.

• Reporting Requirements
  Detailed guidelines are provided for reporting test results, including machine description, operational data, pollutant control system details, measurement methods, environmental conditions, and results with statistical validation. This ensures transparency and reproducibility.

Applications

ISO 29042-7:2010 is a critical tool for industries that design, manufacture, or regulate machinery where airborne pollutant emissions present safety risks. Typical applications include:

• Machine Performance Evaluation
  Assessing pollutant emissions to verify compliance with health and safety legislation or internal environmental targets.

• Machine Development and Improvement
  Informing design changes to reduce hazardous emissions and improve workplace safety by benchmarking pollutant concentrations.

• Comparative Analysis
  Comparing different machines performing similar functions to select safer or more environmentally friendly options based on their pollutant emission profiles.

• Safety and Environmental Compliance
  Supporting risk assessment and conformity verification processes for machinery under regulatory and certification frameworks.

Related Standards

ISO 29042-7:2010 is part of the broader ISO 29042 series concerning the evaluation of airborne hazardous substances emitted by machinery. Related parts include:

• ISO 29042-1: Selection of test methods for emission evaluation
• ISO 29042-2: Tracer gas method for emission rate measurement
• ISO 29042-3: Test bench method for emission rate measurement
• ISO 29042-4: Tracer method for capture efficiency of exhaust systems
• ISO 29042-5 & 6: Test bench methods for measuring mass separation efficiency of air cleaning systems
• Future Parts 8 and 9: Room methods for pollutant concentration measurement and decontamination index

Additionally, ISO 12100 provides foundational principles for machinery safety design, and ISO 2602 addresses statistical interpretation of test results, both integral to applying ISO 29042-7 effectively.

By adhering to ISO 29042-7:2010, stakeholders can ensure accurate assessment of airborne hazardous emissions, contributing to the safe and sustainable operation of machinery across various industrial sectors. Keywords: ISO 29042-7, machinery safety, airborne hazardous substances, pollutant concentration, test bench, emission measurement, gases, vapours, respirable particles, air quality, pollutant control.