Third, tube size and structure requirements
1. Specification: According to the requirements of the design drawing, it should be measured with a vernier caliper. The tolerance is within the specified range of the drawing: the maximum allowable deviation of the diameter is 0.5mm; the maximum allowable deviation of the length is 1.5mm; the maximum allowable deviation of the thickness is 0.05mm;
2, weight requirements: with a precision of 0.1g balance measurement, the standard value and allowable error within the agreed range of both parties: the maximum allowable deviation is 10% of the standard sample weight;
3, full mouth capacity: With 20 °C water filled containers and container mouth level, with the quality of the water poured into the container to indicate the full capacity of the mouth, the standard value and error range within the agreed upon by both sides: the maximum allowable deviation for the standard sample mouth capacity 5%;
4. Thickness and evenness (applicable to hoses with a content of 50ML or more): Cut open the container and measure the thickness at the upper, middle and lower positions respectively. The maximum allowable deviation is not more than 0.05mm.
5.Material requirements: According to the materials stipulated in the contract signed by the supplier and the buyer, refer to the corresponding national industry standards for inspection, which is in accordance with the sample seal model.