A measurement apparatus for hydrogen solubility and competitive dissolution of multi-component gases includes a gas dissolution mechanism, and the gas dissolution mechanism includes a heat-insulated box. A first piston plate and a second piston plate are slidably connected in a dissolution cylinder and a gas cylinder, respectively, a middle part of the first piston plate is connected to a gas transport pipe, and the gas transport pipe can connect upper and lower spaces of the first piston plate. The apparatus can clearly determine partial pressure generated by conversion of the formation water into the water vapor, and maintains preset partial pressure of hydrogen through dynamic adjustment by the second piston plate to eliminate an error caused by the change in a volume of the formation water. The first piston plate isolates a gas from the formation water to prevent the backflow of the formation water during gas replacement and vacuumizing.

A residual gas volume measuring device to accurately measuring volume of residual gas while preventing deterioration in a pump that pressurizes an airtight container. This device includes a second pipe 50 through which an airtight container filled with a basic carbon dioxide absorbing liquid and a second reservoir retaining pressurization water in communication with each other, a section closer to the airtight container filled with the carbon dioxide absorbing liquid, and a section closer to the second reservoir which is filled with the pressurization water; and a pump provided in the section of the second pipe filled with pressurization water. Before residual gas is introduced into the airtight container, the pump sends the pressurization water in the second pipe toward the second reservoir, and after the residual gas is introduced into the airtight container, the pump sends the pressurization water in the second pipe toward the airtight container.

A residual gas volume measuring device to accurately measuring volume of residual gas while preventing deterioration in a pump that pressurizes an airtight container. This device includes a second pipe 50 through which an airtight container filled with a basic carbon dioxide absorbing liquid and a second reservoir retaining pressurization water in communication with each other, a section closer to the airtight container filled with the carbon dioxide absorbing liquid, and a section closer to the second reservoir which is filled with the pressurization water; and a pump provided in the section of the second pipe filled with pressurization water. Before residual gas is introduced into the airtight container, the pump sends the pressurization water in the second pipe toward the second reservoir, and after the residual gas is introduced into the airtight container, the pump sends the pressurization water in the second pipe toward the airtight container.

Provided is a method for predicting a dynamic adsorption capacity of volatile organic compounds (VOCs) at different concentrations using a static adsorption isotherm. A static adsorption capacity Q.sub.s of the VOCs at different pressures is initially obtained, and then a dynamic penetrated adsorption capacity Q.sub.dp and a dynamic saturated adsorption capacity Q.sub.ds of the VOCs at the multiple concentrations are obtained. A conversion relationship equation Formula 1 between the dynamic saturated adsorption capacity Q.sub.ds and the static adsorption capacity Q.sub.s at a same partial pressure is determined by statistics of the dynamic saturated adsorption capacity Q.sub.ds and the static adsorption capacities Q.sub.s at the same partial pressure. A curve of the dynamic saturated adsorption capacity Q.sub.ds versus the partial pressure is finally obtained according to a change trend of the static adsorption isotherm with a pressure.

Provided is a method for predicting a dynamic adsorption capacity of volatile organic compounds (VOCs) at different concentrations using a static adsorption isotherm. A static adsorption capacity Q.sub.s of the VOCs at different pressures is initially obtained, and then a dynamic penetrated adsorption capacity Q.sub.dp and a dynamic saturated adsorption capacity Q.sub.ds of the VOCs at the multiple concentrations are obtained. A conversion relationship equation Formula 1 between the dynamic saturated adsorption capacity Q.sub.ds and the static adsorption capacity Q.sub.s at a same partial pressure is determined by statistics of the dynamic saturated adsorption capacity Q.sub.ds and the static adsorption capacities Q.sub.s at the same partial pressure. A curve of the dynamic saturated adsorption capacity Q.sub.ds versus the partial pressure is finally obtained according to a change trend of the static adsorption isotherm with a pressure.

A device including a housing having an access opening, a swing arm mounted to the housing and configured to be selectively pivoted toward and away from the access opening, and a closure captured by the swing arm. The closure can be configured to be selectively moved in a substantially vertical motion relative to the swing arm between a retracted position and an inserted position at least partially in the access opening and can have locking features for cooperating with engagement features in the device to move the closure into a closed and sealed configuration.