"CONSISTS OF: TEST STRIPS FOR DETECTION/SEMI-QUANTITATIVE DETERMINATION OF SULFATE IONS; 4 TEST ZONES CONTAINING VARYING AMOUNTS OF RED-COLORED THORIN-BARIUM COMPLEX SEALED ONTO PLASTIC STRIPS; IN THE PRESENCE OF EQUIVALENT AMOUNTS OF SULFATE IONS, THE COMPLEX IS BROKEN UP W/REMOVAL OF BARIUM LEAVING YELLOW THORIN; 4 TEST ZONES CHANGE FROM LIGHT RED TO YELLOW AT VARIOUS SULFATE CONCENTRATIONS; 100 TESTS PER KIT"