ISO TS 14505-1-2007 PDF

Full title and description

ISO/TS 14505-1:2007 — Ergonomics of the thermal environment — Evaluation of thermal environments in vehicles — Part 1: Principles and methods for assessment of thermal stress. This Technical Specification gives guidance and recommended methods for assessing thermal stress (hot, cold and moderate conditions) inside vehicles and for interpreting measurements and test results in the special conditions found in land, sea and air vehicles.

Abstract

Provides principles and methods for the assessment of thermal stress experienced by vehicle occupants. The document describes which established assessment methods (for e.g. thermal comfort, heat and cold stress) can be applied to enclosed vehicle environments, what constraints or adjustments are required for vehicle-specific conditions, and how to combine environmental measurements with occupant-related factors (metabolic rate, clothing) and human-subject evaluation.

General information

• Status: Published (Technical Specification; review history indicates confirmation and later review/resolution steps; currently listed for revision in ISO lifecycle).
• Publication date: February 2007 (2007-02).
• Publisher: International Organization for Standardization (ISO), prepared by ISO/TC 159/SC 5 (Ergonomics).
• ICS / categories: 13.180 (Ergonomics); 43.020 (Road vehicles).
• Edition / version: Edition 1, ISO/TS 14505-1:2007.
• Number of pages: 8 (technical specification length as published by ISO).

Scope

Gives guidance for assessment of thermal environments within vehicles used on land, at sea and in air. The scope covers measurement and evaluation approaches for thermal comfort and for thermal stress (both heat and cold), selection or adaptation of existing international methods for vehicle interiors, consideration of occupant metabolic rate and clothing insulation, recommended measurement points and procedures during vehicle testing, and procedures for evaluation using human subjects where appropriate. The standard emphasizes adjustments and constraints that arise from vehicle geometry, transient conditions and localized exposures.

Key topics and requirements

• Principles and recommended methods for assessing thermal stress inside vehicles (hot, cold and moderate conditions).
• Measurement procedures for cabin climate: instrumentation, measurement locations and handling transient/inhomogeneous conditions.
• Evaluation approaches for thermal comfort (subjective methods) and objective indices for heat and cold stress.
• Consideration of occupant-related factors: metabolic rate estimation, clothing insulation, and how to include these in assessments.
• Guidance on use of human-subject experiments and interpretation of results in vehicle-specific contexts.
• Cross-references to related international standards and methods (to be used or adapted for vehicles).

Typical use and users

Used by automotive and vehicle HVAC system designers, vehicle ergonomists, human factors engineers, testing laboratories, regulators concerned with occupant safety and comfort, and researchers studying thermal comfort and thermal stress in transport environments. The specification guides test planning, interpretation of cabin climate measurements, and the adaptation of general thermal-environment methods to vehicle conditions.

Related standards

Closely related to other parts of the ISO 14505 series (e.g., ISO 14505-2 on determination of equivalent temperature) and to general thermal-environment standards and test methods such as ISO 7730 (thermal comfort / PMV/PPD approaches) and standards for heat-stress assessment (e.g., WBGT-related methods and ISO 7243). Practitioners typically use ISO/TS 14505-1 together with ISO 14505-2 and other ISO ergonomics standards when assessing vehicle climates.

Keywords

ergonomics, thermal environment, vehicle climate, thermal stress, thermal comfort, measurement procedures, metabolic rate, clothing insulation, equivalent temperature, human-subject evaluation

FAQ

Q: What is this standard?

A: ISO/TS 14505-1:2007 is a Technical Specification from ISO that provides principles and recommended methods for assessing thermal stress and thermal environments inside vehicles (land, sea and air). It is the first part of the ISO 14505 series focused on assessment principles.

Q: What does it cover?

A: It covers which established assessment methods are applicable to vehicle interiors, how to measure cabin climate in the presence of transient and localized conditions, how to account for occupant metabolism and clothing, and guidance on human-subject evaluation and interpretation specific to vehicles.

Q: Who typically uses it?

A: Vehicle designers and HVAC engineers, ergonomists and human-factors specialists, testing and research laboratories, and regulatory bodies or certification organizations that assess occupant comfort and thermal safety in transport vehicles.

Q: Is it current or superseded?

A: The document was published in February 2007. ISO’s lifecycle information shows the specification was reviewed and confirmed in previous systematic reviews; at the time of the ISO catalogue entry the item had been listed for revision in ISO’s review process. Users should check the ISO catalogue or national standards bodies for any revision or replacement published after 2007 before relying on it as the latest authority.

Q: Is it part of a series?

A: Yes — it is Part 1 of the ISO 14505 series (vehicle thermal environment evaluation). Part 2 (ISO 14505-2:2006) and other related parts provide complementary methods (for example, determination of equivalent temperature) and should be used together when performing full vehicle thermal assessments.

Q: What are the key keywords?

A: Ergonomics, thermal environment, vehicle climate, thermal stress, thermal comfort, equivalent temperature, measurement procedures, metabolic rate, clothing insulation.