摘要:
Methods and apparatus for characterising OSI-materials provide for: introducing the material into a measurement cell; subjecting the material to a gas mixture containing oxygen; permitting a certain time or at certain time interval or intervals to elapse; measuring a defined volume part of the gas mixture with regard to its oxygen concentration using a measurement circuit, which together with the time component represents a characterisation of the OSI-material, wherein the OSI-material in the measurement cell is subjected to the gas mixture circulated in a closed reaction circuit, and the defined volume part is conveyed into a measurement circuit containing a gas, for the measurement of the oxygen concentration.
摘要:
The invention relates to an oxygen scavenger/indicator which contains at least one substance with combined scavenger and indicator function for oxygen, which can absorb oxygen under the effect of moisture in basic conditions, and also to at least one basically reacting compound. The indicator effect is effected by a change in at least one physical property of the substance with combined scavenger and indicator function for oxygen, the change being triggered by the effect of moisture.
摘要:
The invention relates to an oxygen scavenger/indicator which contains at least one substance with combined scavenger and indicator function for oxygen, which can absorb oxygen under the effect of moisture in basic conditions, and also to at least one basically reacting compound. The indicator effect is effected by a change in at least one physical property of the substance with combined scavenger and indicator function for oxygen, the change being triggered by the effect of moisture.
摘要:
Methods and apparatus for characterising OSI-materials provide for: introducing the material into a measurement cell; subjecting the material to a gas mixture containing oxygen; permitting a certain time or at certain time interval or intervals to elapse; measuring a defined volume part of the gas mixture with regard to its oxygen concentration using a measurement circuit, which together with the time component represents a characterisation of the OSI-material, wherein the OSI-material in the measurement cell is subjected to the gas mixture circulated in a closed reaction circuit, and the defined volume part is conveyed into a measurement circuit containing a gas, for the measurement of the oxygen concentration.
摘要:
Disclosed is a method for actuating a superimposed steering system, a superimposed steering system, a controller, a computer program, and a computer program product. In the method, a steering ratio is produced as a function of the driving speed, with the magnitude of a time delay being adjusted as a function of the driving speed.
摘要:
The invention relates to a thin-film composite system which has at least one substrate film and at least one thin film. The catalyst thereby catalyses the reduction of oxygen, as a result of which oxygen which is detrimental to oxidation-susceptible packaging items is consumed. The composite system according to the invention is used also in the form of bag films, cover films or partially applied individual films for oxygen-susceptible packaging items. A method for oxygen-free packaging of oxidation-susceptible packaging items is likewise provided.
摘要:
The invention relates to an oxygen scavenger/indicator which contains at least one oxygen sorbent comprising a metal or a metal compound which can be transferred by oxygen into a higher oxidation level. Furthermore, a complexing agent or redox indicator for the sorbent and also an electrolyte are contained in addition. The indicator effect is effected by a change in the physical properties of the oxygen sorbent which is initiated by complex formation and/or interaction with the redox indicator.