How is the transportation of biological samples for diagnostic reagents safe and efficient?
The transportation of biological samples is different from the transportation of general goods. Biological samples are generally afraid of light, heat, and some are also afraid of freezing, so the requirements for the transportation of biological samples are very strict, otherwise it will affect their quality. The transportation of biological samples should be safe and efficient, and there are some safety details that cannot be ignored in terms of transportation vehicles and loading of biological samples!
The process from collecting biological samples to transporting biological samples should be rapid and shorten the time from sample collection to experimentation. Pay attention to the following details during transportation:
Inspection before transportation of biological samples
Body of biological sample transport vehicle
Confirm that the door seal of the cabin is intact and free from wear
There is no damage to the inner and outer walls and insulation layer of the cabin
Refrigerator for biological sample transportation vehicles
Check if the appearance of the refrigerator is clean and free from airflow blockage, and if other components are in normal condition
Fuel for biological sample transport vehicles
Check the fuel tank level to confirm if the fuel is sufficient
Biological Sample Transport Vehicle Battery
Check if the battery wiring is loose
Check if the wiring is dirty
Biological sample transport vehicle tires
Check if the tires are intact and the tire pressure is normal
Transport of biological samples
Cold machine inspection of biological sample transportation vehicles
Pre operation inspection
• Fuel tank level, antifreeze dosage, engine lubricating oil quantity
• Cleanliness of condenser and evaporator coils, air filters
Check for leaks at engine lubricating oil, fuel filter, and oil pipe connections
Belt tension and wear
• Cleanliness and tightness of battery electrodes
Check if there is no damage or leakage at the connection of the defrost drainage hose and air switch
Post operation inspection
Check the cooling water temperature (65 ℃~82 ℃)
• Check engine speed
• Pay attention to any abnormal noise
Check the compressor lubricating oil and observe if there are any lubricating oil leaks
Check the cooling dosage and radiator hoses for leaks
Check if the drying filter is blocked
Start the operation inspection program
Pre cooling of biological sample transportation
Before loading, the refrigerated compartment should be pre cooled to remove the heat inside the compartment
The pre cooling temperature of the compartment should be consistent with the temperature of the goods
The temperature of the goods is required to be below 4 ℃, and a manual defrosting is required during the pre cooling process
The function of a refrigerator is to maintain the temperature of goods during transportation, rather than to cool (or heat) the goods
loading
After pre cooling the carriage, load the goods with the chiller turned off
Fast loading of goods from enclosed platforms
Ensure there is sufficient clearance between the cargo and the cabin wall during loading to ensure smooth circulation of airflow
Key points for using refrigerators
Adopting continuous operation mode
Short defrosting time
Long defrosting interval
Turn off the refrigerator first when unloading
Open the trunk door again
If the cold engine is not turned off, a large amount of external humid air will be sucked in, causing temperature rise in the compartment and frost formation in the coil, making it difficult to cool in the later stage and wasting fuel.
