Ordinary containers, also known as dry freight containers, are mainly used to transport general cargo, such as cultural items, daily necessities, medicine, textiles, handicrafts, chemicals, hardware, electronic machinery, instruments and machine parts. Dry freight containers account for 80% of the total container volume. Except for refrigerated goods, live animals, and plants, any cargo that is suitable for container transportation in terms of size and weight can be transported with dry freight containers.
Based on the analysis results, it is necessary to increase the use of drying agents in the dry freight container. It is recommended to use 8 bags of calcium chloride drying agent for each 20ft dry container during the period from October to March of the following year (e.g. during the container loading period), and 6 bags of calcium chloride drying agent for each 20ft dry container during the period from April to September (container loading period), in order to achieve safe transportation. The premise is to confirm that such calcium chloride drying agent can effectively absorb moisture under the existing container loading method.
If it is uncertain whether the existing calcium chloride drying agent can effectively absorb moisture under the existing container loading method, and in order to effectively control the humidity of all parts of the container in a timely manner, it is suggested to use a scheme of scattering dry freight container drying agents instead of the original scheme of hanging calcium chloride drying agents on the side walls. It is recommended to use 36 packs of container drying agent for each 20ft dry container during the period from October to March of the following year (e.g. during the container loading period), and 32 packs of container drying agent for each 20ft dry container during the period from April to September (e.g. during the container loading period). To confirm that the new drying agent can better control the humidity inside the container, we can conduct a comparative test on this.
Select two containers that are shipped to the same destination at the same time, require the same packaging method and transport the same goods. One container is equipped with 6 pieces of 1.4kg calcium chloride drying agent hanging on the side wall of the container, and the other container is equipped with 32 packs of 125g new container drying agent. No drying agent is placed inside the package. Two temperature and humidity recorders are placed at the top middle position of each dry freight box, one fixed outside the product packaging and one fixed inside the product packaging, to record the temperature and humidity changes inside and outside the product packaging during the entire transportation process. Note that temperature and humidity recorders should not be placed too close to the drying agent to avoid affecting data accuracy. Take photos of the entire test process, fill in the test information in detail according to the attached table, and send it to the manufacturer together with the temperature and humidity recorder after opening the container, so that we can analyze the test results.