Overview
ISO 6487:2015/Amd 1:2017 is an amendment to the international standard published by the International Organization for Standardization (ISO), focusing on measurement techniques and instrumentation used in impact tests for road vehicles. This amendment refines calibration procedures and uncertainty specifications for sensors and transducers deployed during crash testing. Developed by ISO Technical Committee 22/Subcommittee 36 (Road vehicles - Safety and impact testing), this standard supports consistent, accurate, and reliable measurement of physical parameters vital to vehicle safety assessments.
Adhering to ISO 6487:2015/Amd 1:2017 ensures that instrumentation used in impact testing is correctly calibrated and its uncertainties are quantified, fostering improved quality in data collection for crashworthiness evaluation.
Key Topics
- Calibration Procedures: Specifies methods for calibrating accelerometers, force sensors, displacement sensors, pressure, temperature devices, torque, and seat belt sensors used in impact tests.
- Measurement Uncertainty: Defines relative expanded uncertainties (k=2) for different sensor types across their application ranges. For example:
- Accelerometers calibrated via shock methods have uncertainties below 1.8%, with frequency-dependent allowances.
- Force and displacement sensors maintain uncertainties below 1%.
- Angular velocity and torque sensors have uncertainties up to 3%.
- Frequency and Amplitude Requirements: Calibration requirements include minimum amplitudes and frequency ranges to ensure accurate sensor response under real crash test conditions.
- Standards Compliance: Encourages conformity with ISO/IEC Directives and references to JCGM 100:2008 for uncertainty calculations, reflecting best practices in metrology.
- Instrumentation in Crash Testing: Focuses on crucial devices measuring acceleration, force, displacement, angles, temperature, and seat belt performance during vehicular impact tests.
Applications
ISO 6487:2015/Amd 1:2017 is essential for professionals and organizations involved in:
- Automotive Crash Testing Laboratories: Ensuring instrumentation meets required calibration standards enhances the fidelity of crash data used to improve vehicle safety.
- Research and Development of Safety Systems: Reliable measurement data supports development and validation of occupant protection devices such as airbags and seat belts.
- Regulatory Compliance: Automotive manufacturers and safety certifying bodies utilize this standard to meet national and international impact testing requirements.
- Instrumentation Manufacturers: Provides guidelines for producing and calibrating sensors tailored to impact testing environments.
- Vehicle Certification and Quality Assurance: Accurate sensor calibration and uncertainty management facilitate credible safety performance evaluations required by market and governmental regulations.
Related Standards
- ISO 6487:2015 – Base standard on measurement techniques in impact tests for road vehicles, covering fundamental instrumentation aspects.
- JCGM 100:2008 – Guide to the expression of uncertainty in measurement, referenced for calculation methodologies.
- ISO/IEC Directives, Part 1 and 2 – Framework governing the development and editorial rules of ISO standards.
- ISO/TC 22 Standards – Broader standards related to road vehicle safety systems and testing methods.
Implementing the requirements set forth in ISO 6487:2015/Amd 1:2017 leads to enhanced precision in crash test instrumentation, ultimately contributing to safer road vehicles through improved impact test data accuracy. This standard is vital for engineers, calibration specialists, and safety regulators aiming for excellence in automotive impact test measurements.
Open preview (PDF)Road vehicles — Measurement techniques in impact tests — Instrumentation — Amendment 1
