GB12982-2004

National flag

国旗

GB 12982-2004 é uma norma nacional chinesa obrigatória vigente: National flag. Setor: Máquinas. Foco: Segurança de produtos. Entrada em vigor: 1 de jul. de 2004.

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 the manufacturing of the National Flag of the People's Republic of China using chemical fiber fabrics (excluding artificial fiber fabrics), silk, cotton, wool, and linen. It also serves as a reference for the appearance quality control of flags made of paper or plastic. It is crucial for manufacturers and suppliers of national flags to ensure full compliance with this mandatory standard.

Requisitos técnicos

The standard specifies the exact shape, pattern, and standard dimensions for various flag specifications, including No. 1 to No. 5 flags, vehicle flags, signing flags, and table flags. It defines the strict allowable tolerances for dimensions such as flag length, height, and the circumcircle diameters of the five stars. Regarding materials, the fabrics used must comply with the requirements of GB/T 17392. The standard establishes specific color requirements for National Flag Red, Five-Star Yellow, and Sleeve White, requiring color differences to be evaluated against standard samples and not fall below grade 3-4. It also mandates strict color fastness levels for light, weather, and washing resistance, varying by material type. Furthermore, the standard outlines detailed sewing requirements, prohibiting splice seams on standard flag surfaces and specifying stitching density and edge folding techniques. Manufacturers must ensure no obvious stains, color smears, or unauthorized additional patterns are present on the flag surface.

Métodos de ensaio

The standard outlines several key testing methods to verify compliance: - Fabric Quality Testing: Conducted according to GB/T 17392. - Color Difference Assessment: Evaluated using the grey scale specified in GB/T 250. - Color Fastness Testing: Includes light fastness (GB/T 8427-1998), weather fastness (GB/T 8430-1998), and washing fastness (GB/T 3921.1 and GB/T 3921.3). - Dimensional Measurement: Requires measuring tools with an accuracy of no less than 0.5%. - Visual Appearance Inspection: Conducted visually at a distance of 1.0m to 1.2m under bright natural light or daylight fluorescent lamps with an illuminance of at least 750 lx.

Perguntas frequentes

What products are regulated under GB 12982-2004?

GB 12982-2004 regulates the National Flag of the People's Republic of China made from chemical fibers, silk, cotton, wool, and linen. It also provides reference guidelines for flags made of paper or plastic.

Is GB 12982-2004 a mandatory standard?

Yes, all technical content within GB 12982-2004 is mandatory for the applicable flag manufacturers and suppliers.

What are the specific color requirements for the national flag?

The standard defines specific colors known as National Flag Red, Five-Star Yellow, and Sleeve White. The color difference must not be lower than grade 3-4 when assessed against the standard color samples specified in GB 12983.

The summary above provides a high-level overview of GB 12982-2004. To ensure complete compliance for your flag 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 12982-2004 today to access all detailed parameters, dimension tables, and testing procedures.

Indicações de aplicabilidade

Tipo: Produto
CCS: A22
ICS: 01.080.10
Órgão competente: Standardization Administration of China
Comitê técnico: National Technical Committee on Color of Standardization Administration of China

Relações

Substitui:GB 12982-1996