等级
|
规格
|
使用温度范围
|
允差
|
特
|
0.1
|
1400-1800℃
|
≤±0.128﹪t
|
ⅰ
|
0.1,0.25,0.5
|
1200-1800℃
|
≤±0.25﹪t
|
ⅱ
|
0.1,0.25,0.5
|
1200-1800℃
|
≤±0.50﹪t
|
ⅲ
|
0.25,0.5
|
400-2300℃
|
≤±1﹪t
|