换气老化特点
本机专门针对橡胶、塑料 及各种绝缘材料之热老化性做测试,其性能与一般老化炉不同，本机之设计具备有:
a. 温度调节精度。
b. 温度分布均匀。
c. 开门后温度回升速率。
d. 试验槽内之风速及换气率。
e. 试验槽内之隔热密封。
f. 特殊换气率调整装置。
g. 依据测试标准:
  jis k-7217, k-7623, k-6301, astm d-2436, d-573, ul-746b, iec-540, bs-6746, 903, iso/dis 4577 
换气率测定方法
this method measures the air change rate of the std type oven as follows
n=3590 (x-y)x2 / vxdx
t
n: number of changes of air per hour
x: power consumption during air change (w)
y: power consumption during no air change (w)
v: total volume of oven (cm3)
d: density of oven ambient air (g/cm3)
t: temperature difference inside/outside oven (°c)