GB24429-2009

Sports helmets - Safety requirements and testing methods for sports helmets for cyclists and users of skateboards and roller skates

运动头盔自行车、滑板、轮滑运动头盔的安全要求和试验方法

GB 24429-2009 ist eine gültige verbindliche chinesische Nationalnorm: Sports helmets - Safety requirements and testing methods for sports helmets for cyclists and users of skateboards and roller skates. Branchencluster: Elektronik. Schwerpunkt: Produktsicherheit. Inkrafttreten: 1. Juli 2010.

Die Anwendbarkeit hängt vom Produktumfang, dem Zertifizierungsweg, Bekanntmachungen der Behörden und Übergangsregeln ab. Fordern Sie eine Übersetzung an oder prüfen Sie die Quelle, bevor Sie diesen Eintrag für Compliance-Entscheidungen nutzen.

Compliance-Überblick

Dieser Überblick ist derzeit nur auf Englisch verfügbar.

Geltungsbereich und Anwendbarkeit

This standard is applicable to sports helmets designed for users of bicycles, skateboards, and roller skates. It specifies the terminology, specifications, requirements, and testing methods for these specific types of protective headgear. It is mandatory for all manufacturers producing helmets for these sports within the Chinese market. The standard categorizes helmets into four sizes (extra small, small, medium, large) based on head circumference.

Technische Anforderungen

The standard outlines comprehensive structural and performance requirements for sports helmets. Structurally, the helmet must consist of a shell, cushion coat, comfort pad, and retention system. The shell must be made of tough, water-resistant, and temperature-resistant materials, with smooth edges and protrusions not exceeding 7mm. The cushion coat must effectively absorb impact energy and cover the minimum head protection area. Performance requirements include strict limits on helmet mass, field of vision (horizontal, upward, and downward), and retention system strength. The retention system must not detach from the test headform during stability tests, and its dynamic and static elongation must not exceed specified limits. The helmet's ability to absorb collision energy is strictly regulated, with the acceleration peak not exceeding 300g during impact tests. Additionally, the standard mandates specific marking and packaging requirements. Each helmet must permanently display information such as the manufacturer's name, product specifications, production date, and mandatory warning labels. A Chinese user manual must also be provided, emphasizing proper fit, strap usage, and the limitation that helmets reduce but cannot completely eliminate sports injuries.

Prüfverfahren

Testing procedures include structural and dimensional inspection using standard headforms. Field of vision is measured using an angle scale and headform fixture. The retention system stability is tested by dropping a guided impact mass onto the helmet's rear. Retention system strength is evaluated by dropping a weight to simulate jaw impact and measuring elongation. The collision energy absorption test involves dropping the helmeted headform onto flat and curbstone anvils at specified velocities after environmental conditioning (high temperature, low temperature, or water immersion).

Häufige Fragen

What products are regulated under GB 24429-2009?

GB 24429-2009 regulates sports helmets specifically designed for cyclists and users of skateboards and roller skates.

Are there any specific structural requirements for the helmet shell?

Yes, the shell must be made of tough, durable materials resistant to water and temperature changes. Protrusions on the outer surface must not exceed 7mm, and the shell must not rupture during testing.

How does GB 24429-2009 relate to international standards?

The standard's main technical requirements and testing methods adopt provisions from BS EN 1078:1997 and F1447-06, aligning its safety criteria with established international practices for helmet safety.

The summary above provides a high-level overview of GB 24429-2009. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 24429-2009 today to access all detailed parameters, tables, and testing procedures.

Hinweise zur Anwendbarkeit

Normtyp: Sicherheit
CCS: Y55
ICS: 97.220.40
Zuständige Behörde: Ministry of Industry and Information Technology
Technisches Komitee: Ministry of Industry and Information Technology