STANDARD SAMPLE FOR METROLOGICAL ASSURANCE OF MEASURING INSTRUMENTS OF GENERAL AND SPECIFIC SURFACE AND ITS MANUFACTURING METHOD Russian patent published in 2016 - IPC G01N15/08 

FIELD: measurement technology.

SUBSTANCE: group of inventions relates to research area of materials by determining their chemical or physical properties, namely, to metrological assurance of measuring instruments of general and specific surface. Standard sample 1 includes a container 2 and comprises an adsorbent material 3. Container 2 is configured with a possibility to provide the container internal space dispatch with connecting port of the measuring device and isolation of the container internal space from the rest of the surrounding space. Adsorbent material 3 is made in the form of rolled sheet of absorbing film and it is placed in said container. Method of making of standard sample 1 involves making an adsorbent material 3 of sheet of absorbing film by rolling it, and placing made adsorbent material in the container 2.

EFFECT: increase in accuracy of certification of standard sample for metrological assurance of measuring instruments of general and specific surface is provided, increase in stability of its sorption properties under prolonged effect of external medium, increase in accuracy of measurements using a standard sample, increase in its strength, simplification of its production and use.

6 cl, 1 tbl, 2 dwg