BTB15 600 TRIAC TESTING

how to test btb15 for reference it is used in polar 885 , whirlpool334/1, aristan, bosch1600 model washing machines for referencing with ac and techo coil in my opinion it is 4quadrent 15 ampere 600v ttiac. hardly available in India but in Russia, Thailand China and Poland. ifb senator semi automatic also has it in its mcu circuit board . all these machines use same interior mechanism and mcu by bitron cva218 having 20 pin Pic logic ic