Desarrollo de una cámara de acondicionamiento para materiales usados en revestimiento interno de vehículos, según las Normas ISO 3795-1989 y US FMVSS 302.

Abstract

In Ecuador the rate of accidentology has increased in the last years, the percentage of the total of accidents is caused by the fire of the vehicles, because there are different elements and materials used as internal coating, which work in different ways against fire. In 1976, the use of the ISO 3795 and US FMVSS 302 standards is promoted, detailing the specifications of the flammability test of the materials and the conditioning of them. This work is based on the design and construction of the conditioning chamber for materials, according to the data specified by standards on temperature and humidity for the interior of the conditioning chamber, obtaining the following ranges of values, temperature 23 ° C ± 2 ° C, relative humidity 50% ± 5%, atmospheric pressure 21,92 in Hg. Once the equipment was built, tests were carried out on three Colombian expandable materials, Brazilian carpet and tapizón, being able to condition them in 6 days continuously, taking 105 data with 15-minute intervals. With the obtained data the respective analyzes and calculations of flammability velocity of the materials were performed in order to validate the results by normality tests of the data and the process capacity calculation which were of 1,26 and 1,82 to temperature and humidity respectively against a value of 1,25 which is the base of comparison, showing that it is a capable and acceptable conditioning process to meet the specifications of the standard, ensuring the operation of the equipment during the conditioning time and conditions according to the required standards. It is recommended to use distilled water for the humidifier as well as to check the electrical connections of the equipment.