The present invention, in some embodiments thereof, relates to a method and scalable devices for hyperfast cooling and re-warming of samples. More specifically, it relates to cryogenic preservation of biological samples via vitrification. It includes: a liquid sample placed at ambient temperature in a flat thermo conductive container that in some embodiments additionally contains a detachable disposable or sterilizable thermo conductive spiral; transferring the sample to a cooling chamber using a linear percussion stepping motor drive; hyperfast cooling of the sample using streams of pressurized liquid coolant; transferring the sample to a detachable shipping/storage chamber filled with liquid coolant, from which the sample can be transferred to another vessel that contains liquid cryogenic coolant and moved back to the shipping/storage chamber. This chamber can be then attached to a re-warming chamber, in which the sample is heated to a biologically tolerant temperature above 0 degrees Celsius in a hyperfast manner.

The subject matter described herein relates to a method for filling fluid containers, in particular fluid containers for fuel cells The method includes: providing a pressure chamber having a pressure chamber interior; positioning a fluid container within the pressure chamber interior in such a manner that a holding space of the fluid container is fluidically connected to the pressure chamber interior; evacuating the pressure chamber interior up to a target negative pressure in such a manner that, due to the fluid coupling, a negative pressure difference initially forms in the pressure chamber interior with respect to the holding space; and filling the fluid container by introducing a fluid into the holding space.

Disclosed is a device and method for quickly replacing a tested flow meter in a liquid hydrogen flow measurement standard facility. The present disclosure includes a tested cold box, wherein the tested flow meter is located in the evacuated tested cold box, the tested cold box is connected to the liquid hydrogen flow measurement standard facility through a bayonet structure; a first vacuum pump, configured to evacuate the tested cold box after replacing the tested flow meter; a second vacuum pump, configured to evacuate a tested pipeline; a precooling device, configured to precool the tested pipeline and the tested flow meter connected to the tested pipeline after the tested pipeline is evacuated.

The present invention relates to a method for filling fluid containers by creating a controlled atmosphere in a space that surrounds a fluid container, in which the pressure can be controlled and a pressure difference is set between the outside and the inside of the fluid container in such a manner that damage to an inner liner of the fluid containers is prevented when it is evacuated. When a target negative pressure is achieved, the holding space of the fluid container is filled with a fluid from a fluid tank.