Table 1.
Severity factors applied to the heat treatment of bamboo specimens

Temperature	Heat treatment time
	30 min.	60 min.	90 min.	120 min.
180℃	3.83	4.13	4.31	4.43
200℃	4.42	4.72	4.90	5.02
220℃	5.01	5.31	5.49	5.61