METHOD FOR DETERMINING FIRE-RESISTANT EFFICIENCY OF PROTECTIVE COMPOUNDS AND COATINGS FOR TIMBER AND MATERIALS ON ITS BASIS, AND UNIT FOR ITS IMPLEMENTATION Russian patent published in 2014 - IPC G01N25/00 A62C99/00 

FIELD: measurement equipment.

SUBSTANCE: group of inventions relates to measurement equipment and can be used for testing of fire-resistant efficiency of protective compounds and coatings for timber. The proposed method involves preparation of a specimen, flame action on the specimen, temperature measurement of exhaust gaseous combustion products, measurement of weight of the specimen and determination of weight loss, as per which fire-resistant efficiency is determined. Specimen weight measurement is performed continuously during flame action on the specimen and after the action is completed, and a moment exceeding the limit weight loss established by classification or moment of stabilisation of specimen weight after completion of its burning is taken as a test completion moment. This method is implemented by a device containing a chamber for arrangement of a specimen, a gas burner, an exhaust system with a thermoelectric converter, an instrument for measurement and recording of temperature of exhaust gaseous combustion products. The device is also equipped with a unit for automatic measurement and recording in time of specimen weight during fire tests, which includes a lever mechanism made so that a specimen holder can be installed and connected to a weight measurement instrument connected to the processing and recording unit.

EFFECT: obtaining more accurate data for investigation of a fire protection mechanism.

5 cl, 1 tbl, 4 dwg