1. Warehouses storing general goods must maintain a certain temperature and humidity. The temperature is generally between 5-35°C and the relative humidity should not be greater than 75%.
2. Materials with special requirements should be classified and managed according to the requirements, and the temperature and humidity should be kept normal. The indoor temperature of plastics and their products is generally maintained at 0-25°C, and the relative humidity is no more than 70%; the indoor temperature of radio components is maintained at 0-40°C, and the humidity is no more than 75%; the room temperature of rubber and its products is generally maintained at 0-25 ℃, relative humidity is 45-70%; the temperature in the anti-static area is generally maintained at 10-30 ℃, and the relative humidity is 30-70%; the temperature in the petroleum product warehouse does not exceed 25 ℃.
3. RoHS "Electronic and Electrical Equipment" (WEEE) refers to equipment that relies on current or electromagnetic fields to generate, transmit and measure currents and electromagnetic fields for normal operation, and the design voltage of these equipment is AC power not exceeding 1000V, DC power does not exceed 1500V. Electronic and electrical equipment put on the market does not contain six substances: lead, mercury, cadmium, hexavalent chromium, polybrominated diphenyl ethers (PBDE) and polybrominated biphenyl (PBB).
4. Warehouses should be equipped with temperature and humidity meters. For the ambient temperature and humidity of the storage area, a designated person must be designated to check and record the situation every day, and moisture-proof equipment should be turned on every day according to specific conditions. For situations where standards are exceeded, appropriate measures should be taken as soon as possible until normalcy is restored, and the corrective measures taken should be recorded.
5. The warehouse should have certain conditions for maintaining temperature and humidity. There should be cold-proof door curtains in winter, and doors should be worn when entering and exiting the warehouse to prevent drastic changes in room temperature; warehouse ventilation and cooling measures should be strengthened in summer.
6. Moisture-proof management of electronic components and PCB boards
(1) The incoming materials are vacuum packed, the incoming materials themselves are marked with moisture-sensitive levels, and the company design and other aspects are marked with moisture Three materials such as important ICs with sensitive requirements or key parts that are easily oxidized need to be vacuum packed or packaged for protection.
(2) The Purchasing Department should strictly require suppliers to standardize the packaging of moisture-sensitive materials. There are indeed special circumstances where packaging cannot be standardized or the company’s internal inspection and other reasons for unpacking moisture-sensitive materials will be organized by the company. Vacuuming and other packaging protection.
(3) The custodian must confirm whether the vacuum packaging materials purchased and received are damaged, air leakage, warning labels, etc., and organize protective treatment. Vacuum packaged materials need to be stored in a temperature and humidity controlled area.
(4) The warehouse must ensure that the remaining bulk moisture-sensitive materials returned from the production workshop are vacuum packed, and check whether the vacuum packaging is leaking, damaged, whether the material is oxidized, etc. Only if it meets the requirements Acceptance is allowed only upon request, otherwise the production workshop can be asked to repackage.
(5) The warehouse should maintain the original vacuum packaging state when issuing vacuum packaging materials.
(6) For stored vacuum packaging materials, custodians should randomly check more than 5 types of materials every day to confirm the compliance of their vacuum packaging conditions. During the random inspection, if it is found that the vacuum packaging of the material has leaked or Damage or other conditions, the custodian should open the package and check the humidity card indication or material condition inside. If the humidity indication turns pink or is obviously oxidized above RH30%, report it to the relevant department for processing.