Aluminum Liquid Nitrogen Biological Container for Cryovials, Straws and Biological Samples

The hold time depends on the tank model and usage. Smaller tanks (e.g. 2-10 L) can hold LN2 for a few weeks, while larger tanks (30-50 L) can last 2-3 months under static conditions. For example, a 10 L YDS tank can last ~80-100 days, and a 30 L tank ~250 days. Actual hold time will be shorter if the tank is opened frequently or if it's a transport model (which has slightly higher evaporation). The static hold times for various models are listed in the specifications table above. Monitoring the

You can check the LN2 level by using a wooden or plastic dipstick: insert it to the bottom of the tank, wait a few seconds, then withdraw - the frost line on the stick indicates the liquid level. Alternatively, many LDH tanks can be equipped with an electronic liquid level gauge that shows the level on a display. For tanks with IoT monitoring, the level can be checked remotely via the connected app or web platform. It's good practice to check the level at least weekly (more often for smaller tan

Yes, but only if it is a Transport-type model. LDH offers transport tanks (marked with a 'B' in the model, e.g. YDS-30B) that have internal supports to withstand movement. These can be moved or shipped with LN2 and samples safely. Do not transport a standard storage tank over long distances or rough terrain - the shock could damage the vacuum or cause spillage. For air transport of samples, consider using a dry shipper (YDH series) which contains LN2 in an absorbent and is certified for air frei

Refilling is done by adding more LN2 into the inner vessel. Use a funnel or transfer tube to avoid spilling on the neck. Wear proper PPE and fill slowly. Do not overfill - leave space at the top. Replace the neck plug after refilling. If you have a large supply, you can connect a transfer line from a bulk tank. Ensure the tank is on a stable surface when refilling. If the tank is nearly empty and warm, pre-cool it by adding a small amount of LN2 and letting it evaporate before a full refill (to

Always wear insulated gloves and eye protection when handling liquid nitrogen or the tank. Never seal the tank completely - the neck plug must allow venting to prevent pressure buildup. Work in a well-ventilated area; LN2 evaporation can displace oxygen. Do not allow unprotected skin to touch extremely cold surfaces or liquid (risk of frostbite). Secure the tank to prevent tipping. If using the optional lock, keep keys in a safe place. Familiarize yourself with emergency procedures for cryogenic