ISO/TR 9240:1992 PDF

Overview

ISO/TR 9240:1992, Textiles - Design of apparel for reduced fire hazard, provides detailed recommendations for designing garments that minimize the risk of fire hazards. Developed by the International Organization for Standardization (ISO), this technical report addresses the significant role that garment design plays in the fire behavior of apparel. It establishes four fundamental principles for reducing the chance of ignition and flame spread in textiles used for clothing. While the flammability of fabrics is crucial, the report emphasizes that the overall design of a garment is equally important for fire safety.

Key Topics

• Design Principles for Fire Safety: ISO/TR 9240 presents four core principles aimed at reducing fire risk through garment design, prioritizing close-fitting designs and the use of "fire stops" such as cuffs and belts.
• Garment Fit: Loosely fitting clothing increases the area exposed to potential ignition sources and encourages faster flame spread, while tighter fitting apparel reduces both risks.
• Oxygen Availability: Closer fitting garments restrict the airflow necessary for combustion, thereby decreasing the likelihood and intensity of fire propagation.
• Garment Geometry: Features such as long, flowing sleeves, wide legs, and extended jackets can act as "chimneys," intensifying burn injuries. Design limitations on these elements are recommended.
• Fasteners and Closures: Properly placed fasteners, such as those located within 15 cm of the garment's lower hem, help contain the spread of flames.
• Surface Burning and Material Selection: While design is critical, the standard also recommends using fabrics that do not exhibit rapid surface burning or surface flash.

Applications

The ISO/TR 9240:1992 recommendations are widely applicable across the textile and apparel industries, particularly in the following contexts:

• Children's Nightwear: Enhanced design guidelines can substantially reduce the risk of burn injuries in vulnerable groups, such as children, who may wear loose nightdresses or pajamas.
• Workwear and Protective Clothing: Industries where workers are exposed to ignition hazards, such as manufacturing, welding, or laboratory environments, benefit from apparel designed to reduce fire risk.
• Home and Consumer Apparel: Everyday garments, especially those worn around open flames or heat sources (e.g., kitchens, near heaters), can be made safer by adhering to these design principles.
• Standards Compliance and Product Development: Apparel manufacturers committed to product safety integrate these recommendations to meet consumer expectations and regulatory requirements regarding fire hazards.

Related Standards

Several related standards complement the guidance provided in ISO/TR 9240:1992, facilitating a comprehensive approach to textile fire safety:

• ISO 4880: Burning behaviour of textiles and textile products – Vocabulary. Offers terminology and definitions used within the industry for burning behavior classification.
• ISO 10047: Textiles – Determination of surface burning time of fabrics. Establishes test methods for evaluating the surface burning characteristics of fabrics.
• National and Regional Standards: Recommendations from this report often interface with fire safety standards in specific countries, such as requirements from the U.S. Consumer Product Safety Commission or the National Fire Protection Association.

By integrating the principles and recommendations outlined in ISO/TR 9240:1992, designers and manufacturers in the textile industry can produce safer apparel, effectively reducing the incidence and severity of fire-related injuries. The standard underscores the dual importance of selecting appropriately flame-resistant materials and adopting thoughtful, fire-conscious garment designs.