ASTM B117 盐雾测试 Salt Spray Test
ASTM B117 - 09 Standard Practice for Operating Salt Spray (Fog) Apparatus
测试样品预处理条件Test conditions::
准备溶液浓度Concentration of solution collected:(5±1)% NaCl (m/m)
盐雾箱温度Chamber temperature:(35±2)℃
盐溶液剂量Volume of salt solution collected:(1.0~2.0) ml/(80cm2·h)
溶液在(23±3)℃时PH值pH of collected solution at (23±3)℃:6.5~7.2
确定测试时间Exposure period:(小时 h)
经过测试后样品外观判定等级Appearance rating:
参照EN ISO 10289:2001
缺损面积Area of defects,, A (%)
|
表观等级判定Appearance rating
|
0(没有缺损No defects))
|
10
|
0<A≤0.1
|
9
|
0.1<A≤0.25
|
8
|
0.25<A≤0.5
|
7
|
0.5<A≤1.0
|
6
|
1.0<A≤2.5
|
5
|
2.5<A≤5.0
|
4
|
5.0<A≤10
|
3
|
10<A≤25
|
2
|
25<A≤50
|
1
|
50<A
|
0
|
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