GB/T 12757-2017 in English

1. Background of standard formulation and analysis of technological evolution

This standard was first issued in 1991 to regulate the design, manufacture and acceptance of lifeboats and insulation equipment in cold environments. This revision mainly focuses on the following aspects:

• Material requirements:Improve the waterproof performance and heat transfer coefficient limit of the fabric.
• Appearance standards:Optimize color recognition and reflective layer design.
• Environmental adaptability:Add high and low temperature cycle tests to ensure reliability in extreme environments.

2. Comparison of standard frameworks and implementation suggestions

Classification and marking examples

Thermal insulation equipment is divided into thermal insulation clothing (Y type) and thermal insulation bags (D type), and the dimensions are in accordance with the basic dimension requirements in Table 1. For example, a thermal insulation clothing with a length of 2000mm and a width of 900mm is marked as: Life-saving thermal insulation equipment GB/T12757—2017 Y2000×900.

Material and appearance requirements

The fabric must meet the requirements of water tightness and corrosion resistance, and the reflective layer should be uniform and free of defects. The color is required to be uniformly orange-red or other high-visibility colors.

3. Implementation suggestions and application cases

Inspection rule optimization suggestions

According to Table 3, type inspection includes material, high and low temperature cycle, wearing and discarding performance tests. It is recommended to increase the frequency of batch sampling during the production process and establish a long-term quality traceability mechanism.

Precautions in practical application

Users should wear thermal insulation equipment correctly according to the instructions to ensure that they can be quickly unpacked and used in a -30℃ environment. At the same time, avoid contact with chemicals during storage and keep it dry and ventilated.