GB154-2013

Sleeper

木枕

GB 154-2013 é uma norma nacional chinesa obrigatória vigente: Sleeper. Setor: Máquinas. Foco: Segurança de produtos. Entrada em vigor: 11 de set. de 2014.

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

GB 154-2013 applies to wooden sleepers utilized in standard gauge railways, specifically categorizing them into ordinary wooden sleepers, turnout wooden sleepers, and bridge wooden sleepers. This standard is mandatory for all manufacturers producing wooden sleepers for the Chinese railway industry. It is not applicable to concrete sleepers or other non-wooden railway tie materials.

Requisitos técnicos

The standard specifies the applicable tree species for different sleeper types, including various pines, larches, and firs, distinguishing between species suitable for ordinary/turnout sleepers and those for bridge sleepers. It defines the precise dimensions and allowable deviations for length, width, and height across different sleeper categories. Furthermore, it outlines the specific track-laying range on the sleeper face where railway rails are installed. Manufacturers must strictly adhere to the defect tolerance limits for knots, decay, cracks, bending, and blunt edges. The standard categorizes products into Grade 1 and Grade 2, with Grade 1 being mandatory for bridge and turnout sleepers.

Métodos de ensaio

Inspection procedures focus on measuring cross-sectional dimensions specifically within the track-laying range. The standard details methods for evaluating decay depth using straightedges or sampling drills, and restricts defect measurements for knots and insect holes to the track-laying area. Volume calculation methods are specified, with ordinary sleepers calculated per piece and bridge/turnout sleepers calculated in cubic meters. General defect measurements follow the referenced standards GB/T 4823 and GB/T 4822.

Perguntas frequentes

What products are regulated under GB 154-2013?

This standard regulates wooden sleepers used in standard gauge railways, specifically covering ordinary wooden sleepers, turnout wooden sleepers, and bridge wooden sleepers.

Are there any updates from the previous version of GB 154-2013?

The standard name was changed to 'Wooden Sleeper'. It also adjusted the applicable tree species, added a terminology section, updated dimension and deviation requirements, and modified the expression of blunt edges in appearance quality.

How does GB 154-2013 relate to other timber standards?

The standard references GB/T 4823 and GB/T 4822 for defect measurement and sawn timber inspection. While it aligns with general sawn timber evaluation principles, it includes specific railway-oriented parameters such as the track-laying range and railway-specific defect tolerances.

The summary above provides a high-level overview of GB 154-2013. 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 154-2013 today to access all detailed parameters, tables, and testing procedures.

Indicações de aplicabilidade

Tipo: Produto
CCS: B68
ICS: 79.040
Órgão competente: National Forestry and Grassland Administration
Comitê técnico: National Technical Committee on Timber of Standardization Administration of China

Relações

Substitui:GB 154-1984