Laboratory glassware is cleaned by hand. The cleanliness of the cleaning is not repeatable, which may affect the authenticity of the experimental data. 3. The laboratory glassware is cleaned by hand, and the experimenters are in direct contact with various chemical cleaning agents, strong acids, strong bases, chromic acids, etc., which may harm the physical health of the experimenters and physical harm. In particular, the harm of hexavalent chromium to the body is irreversible. 4. 

It's not simple, just look at how many injection heads there are. Good production enterprises have more semi-injection baskets and insert racks to meet a wider range of cleaning requirements. 2) Heating method and temperature control system: A: heating method: there are two methods of integrated heating of the circulation pump and the separation of the circulation pump and the heating wire. Different heating methods directly affect the length of cleaning time.

The integrated heating of the circulation pump has high efficiency. Greatly shorten the cleaning time. B: Temperature control: Whether the temperature control is accurate. A good temperature control will be controlled within 1 degree range. A bad temperature control is often extensive, with large fluctuations up and down. Contaminants that are more precise or sensitive to temperature cannot be cleaned. Or if the cleaning is not clean (such as protein, etc.), the effect of different batches of cleaning will not be guaranteed. 3) Operation monitoring system and filtration system: with or without rotating arm operation monitoring system and water pressure monitoring system, without monitoring may result in unclean cleaning when the rotating arm does not rotate or the circulation pump is blocked and the pressure becomes small.

Good products have sophisticated four-layer filtration systems. At the same time, it guarantees the minimum wear on the measuring tool and significantly prolongs the service life of the measuring tool. 4) Waterproof system: Some manufacturers have written on their color pages that they have a waterproof system, but not necessarily a real waterproof system. A good waterproof system is that when there is no one on duty, in case of water leakage, it will automatically close the water inlet line, automatically open the drain valve to drain, and the equipment will stop running.

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