1. Visual inspection
(1) Check whether the marks and numbers of the dry freight containers are clear, which should be consistent with the records on the qualification certificate.
(2) Check whether the exterior of the shipping container, especially the four columns, six sides and octagons, is in good condition, and whether there is any damage or leakage. When dents and scratches are found in a certain part of the outside of the box, it should be carefully inspected for cracks or cracks. Pay special attention to repaired parts. In addition, the rivets of metal containers are often loose and fractured, which will also cause hidden dangers of leakage, which must be strictly inspected.
(3) Check and identify the sealing condition of the container.
(4) Check whether the door of the dry cube container is well closed, whether there is deformation, whether the sealing gasket is complete, whether there is aging phenomenon, and the sealing device on the door should be intact.
2. Internal inspection
(1) Check the cleanliness of the box, whether there is any residue, pollution, rust, odor, soil, moisture, etc. If it is found that it does not meet the loading requirements, it should be brought to the relevant department for cleaning to eliminate moisture and odor, or use appropriate bedding Materials and other remedial measures must be replaced for those who cannot clean up and take measures. Containers that do not meet the requirements for residual toxic and harmful substances must be replaced.
(2) Check whether there are protrusions or parts that cause damage to the goods at the bottom plate and surrounding wall panels of the box, and do not expose the nails to damage the goods. If stains or wet marks are found in the container, it must be sorted out; for the repaired dry freight container, it must be confirmed that there is no leakage.
(3) Check whether the installation conditions of accessories in the box, such as tie rings and eyelets for fixing goods, meet the requirements. Check the ventilation holes of the container, etc., to confirm that the working condition is good, and the container with the drainage device should also check whether the drainage hole is unblocked, and whether the valve is flexible and applicable.
In addition to the above dry freight container inspection methods, the refrigerated container load-worthy inspection should also check the following contents:
(1) The refrigeration efficiency test must be carried out during the inspection of the box, and the temperature simulation test must be used to confirm whether the requirements can be met.
(2) Check whether the container thermal insulation device is in good condition, and there is no potential defect of leakage of cold air. Pay attention to the smoothness of the lower air duct. Generally, the cold air of the container has an upper blowing type or a lower blowing type, that is, it is blown into the upper air duct through the gap between the goods and discharged from the air duct at the bottom of the box, or is blown in from the air duct at the bottom of the box, and then blows from the air duct at the bottom of the box. Top air duct exhaust. Therefore, we must pay attention to the air duct, so as not to block it and hinder the circulation of cold air.
(3) Understand whether the cargo loaded on the previous voyage has affected the refrigerated goods to be loaded on this voyage. If the peculiar smell of the goods loaded on the previous voyage or the leakage of toxic and harmful substances is enough to affect the cargo to be loaded, it must be thoroughly cleaned and the peculiar smell must be removed before it is allowed to be shipped to prevent contamination.
(4) The power-on test must be carried out to inspect the dry reefer container. After connecting the power supply, adjust the temperature regulator of the refrigeration unit to the temperature required during transportation, turn on the power switch and the switch of the refrigeration unit, and record the refrigeration time and defrost of the reefer container. , balance temperature, etc., confirm that the refrigerator can perform control and meet the expected temperature requirements.
(5) For refrigerated containers with ventilation devices and drainage hole devices, their airtightness and activation conditions should be checked to meet the actual needs of transporting goods.
For other types of containers, such as open-top containers, platform containers, frame containers, etc., the technical requirements for container inspection are far lower than the above-mentioned dry freight containers and refrigerated containers, and may be considered as appropriate in actual work.