Folem "Classification of Combustion Performance of Building Materials and Products" (GB 8624-2012) bilong Saina, ol samting bilong Klas A i no inap long paia. Paia mak bilong 'backing board' i dipen long ol samting ol i wokim long en:
- Klas A beking bod: gypsum bod, glas magnesium bod, ston wul bod, na ol narapela, ol i bin testim na setifiket olsem Klas A1 (i no inap paia) o Klas A2 (i no gat planti smok, i no inap paia). Olsem, wanpela kain glas magnesium beking bod ol i bin testim olsem Klas A1 (refrens: Nesenel Fireproof Building Materials Kwaliti Supavisen na Inspeksen Senta ripot).
- Non-Klas A bek bod: Ol nomol 'density fiberboard' na 'plywood' em ol i save stap olsem Klas B2 (i save kukim) o Klas B1 (i hat long kukim), na ol i mas putim ol samting bilong pasim paia long mekim gutpela mak bilong en.
