Inspection rules for fire hoses

1. During inspection, water hoses of the same variety, inner diameter, and length of 1000 meters are considered as a batch. Randomly select 100 meters from them for visual inspection. Cut three samples economically, and the length of the samples should comply with the provisions of 3.1.1.

2. The inner diameter of each sample should comply with the provisions of this standard; The arithmetic mean value of the unit length weight and seepage volume of the three samples shall comply with the provisions of this standard; A sample shall undergo only one state of explosion test and shall comply with the provisions of this standard.

3. If any item does not comply with the provisions of this standard during inspection, it is allowed to retest the item once. During retesting, double the sample size using an economical method. The results of the sample retest should all comply with the provisions of this standard, otherwise it will be considered as unqualified products.

4. When there is a dispute between the supply and demand parties regarding product quality, the cost of arbitration inspection shall be borne by the responsible party.