What are the flammability standards for natural fiber fabrics?

 

 

As a common textile, natural fiber fabric is widely used in daily life. However, due to their natural physical and chemical properties, they burn easily in fires and release large amounts of harmful gases and smoke, posing a serious threat to human health and the environment. Therefore, in order to ensure the safety performance of natural fiber fabrics, each country has formulated the corresponding flammability standards.

 

 

 

1. International standards

 

International standards are standards developed by international organizations such as the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). Among them, ISO 6940 "Textiles - Flammability" and ISO 6941 "Textiles - Flammability - Horizontal burning test method" are the most common standards. These two standards specify the burning performance of textiles in a fire, including burning speed, burning time, smoke density and other indicators.

 

2. National standards

 

National standards are standards set by the standardization organizations of each country. For example, China has developed standards such as GB/T 5455 "Test Methods for Combustibility of Textiles" and GB/T 17591 "Textiles - Combustibility Requirements for Children's Sleepwear". These standards specify the burning properties of textiles in a fire, as well as the flammability requirements for children's pajamas, etc.

 

 

In order to assess the combustion performance of natural fiber fabrics in a fire, a series of tests are required. The following are a few common test methods:

 

1. Horizontal combustion test

 

Horizontal combustion test is to assess the burning performance of textiles in the horizontal state. Test, the textile samples on a horizontal burning table, ignite one end, record the burning time and burning speed and other parameters. Test results can be used to assess the burning performance of textiles, and whether it meets the requirements of relevant standards.

 

2. Vertical Burning Test

 

Vertical burning test is to assess the burning performance of textiles in the vertical state. Test, the textile samples hung on a vertical burning rack, ignite the upper end, record the burning time and burning speed and other parameters. Test results can be used to assess the burning performance of textiles and whether they meet the requirements of relevant standards.

 

3. Smoke density test

 

Smoke density test is to assess the degree of smoke released from textiles in a fire. During the test, the textile sample is placed in the smoke density test device, one end is lit, and parameters such as smoke density are recorded. The test results can be used to assess the extent of smoke release from textiles and whether it meets the requirements of the relevant standards.

 

 

The application of flammability standards is very wide. For example, in the textile production and marketing process, natural fiber fabrics need to be tested for flammability to ensure that they meet the requirements of the relevant standards. In addition, flammability testing is also required in the fields of construction, transportation, and children's sleepwear to ensure the safety performance of the relevant products.

 

In short, the flammability standard of natural fiber fabrics is one of the important standards to ensure the safety of consumers. By strictly complying with the relevant standards, we can effectively reduce the incidence of fire accidents and protect people's lives and properties.