Gypsum Board Burning Stability Test Apparatus A professional bench-top combustion tester engineered to evaluate the structural stability of gypsum plasterboards under direct flame exposure. Compliant with GB/T 9775-2008 and ISO 6308, it delivers repeatable, controllable high-temperature flame conditions and records thermal response, cracking, spalling and collapse time for quantifiable, auditable fire performance data. Product Overview This gypsum board burning stability test