GB9660-1988

Standard of aircraft noise for environment around airport

机场周围飞机噪声环境标准

GB 9660-1988 é uma norma nacional chinesa obrigatória vigente: Standard of aircraft noise for environment around airport. Setor: Máquinas. Foco: Métodos de ensaio. Entrada em vigor: 1 de nov. de 1988.

A aplicabilidade depende do escopo do produto, da via de certificação, dos avisos da autoridade competente e das regras de transição. Solicite uma tradução ou verifique a fonte antes de usar este registro em uma decisão de conformidade.

Visão geral de conformidade

Esta visão geral está disponível por enquanto apenas em inglês.

Escopo e aplicabilidade

This standard applies to areas around airports affected by noise generated by passing aircraft. It is specifically designed for environmental noise control in residential and educational zones near airports. Local governments are responsible for designating the specific geographical boundaries of these applicable zones. It references GB 9661 for measurement methodologies.

Requisitos técnicos

The standard establishes the environmental noise limits for areas surrounding airports using the Weighted Equivalent Continuous Perceived Noise Level (LwEcPN) over a 24-hour period as the primary evaluation metric. It categorizes the affected areas into two distinct zones with specific noise limit requirements. Compliance with these noise limits is mandatory for airport operations and surrounding urban planning. The standard defines Class I areas (special residential, general residential, and educational zones) and Class II areas (other living areas not covered in Class I).

Métodos de ensaio

The standard specifies that the permissible noise levels are measured outdoors in flat, open areas. The measurement setup requires the microphone to be positioned 1.2 meters above the ground and at least 1.0 meter away from any reflecting surfaces. All measurement procedures, calculation methods, and instrument specifications must strictly follow the guidelines outlined in GB 9661.

Perguntas frequentes

What operations are regulated under GB 9660-88?

GB 9660-88 regulates the environmental noise generated by aircraft operations around airports, specifically targeting the impact on surrounding residential and educational areas.

What is the evaluation metric used in GB 9660-88?

The standard uses the Weighted Equivalent Continuous Perceived Noise Level (LwEcPN) measured in decibels (dB) over a 24-hour period to evaluate aircraft noise.

How are the applicable zones determined under this standard?

The specific geographical boundaries of the applicable zones are designated by the local People's Government. They are generally divided into Class I and Class II areas based on land use.

The summary above provides a high-level overview of GB 9660-88. To ensure complete compliance for your operations or environmental assessments in the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 9660-88 today to access all detailed parameters, zone classifications, and testing procedures.

Indicações de aplicabilidade

Tipo: Proteção ambiental
CCS: Z32
ICS: 17.140.20
Órgão competente: Ministry of Ecology and Environment
Comitê técnico: Ministry of Ecology and Environment