Operating Salt Spray (Fog) Apparatus
It can be used to test the relative
resistance to corrosion of coated and uncoated metallic specimens, when exposed
to a salt spray climate at an elevated temperature.
Test specimens are placed in an enclosed
chamber and exposed to a continuous indirect spray of neutral (pH 6.5 to 7.2)
salt water solution, which falls-out on to the specimens at a rate of 1.0 to
2.0ml/80cm²/hour, in a chamber temperature of +35°C.
This climate is maintained under
constant steady state conditions.
The test duration is variable.
This test is
also referred to as a Neutral Salt Spray or NSS test.
LIEBISCH S 400 M/A-TR/SC, S 1000 M/A-TR/SC, S 2000 M-SC, S 2500 M/A-TR 可满足上述标准
GM4465P Humidity Test(General Motors)
It can be used to test coated specimens by
exposing them to water fog at an elevated temperature, using apparatus similar
to that used for salt spray testing to ASTM B117.
Test specimens are placed in an enclosed
chamber that meets the apparatus requirements of ASTM B117.
Here they are exposed to a continuous
indirect spray water, which falls-out on to the specimens at a rate of 1.0 to
2.0ml/80cm²/hour, in a chamber temperature of +38°C and a humidity of 100%RH.
This climate is maintained under constant
steady state conditions.
The test duration is variable.
LIEBISCH K 300, K 400 M-TR, K 1000 M-TR, K 2000 M-SC, K 2500 M-TR可满足上述标准
DIN EN ISO 9227盐雾腐蚀试验/GB/T 10125/ASTM B 368
DIN EN ISO 6270-2冷凝水试验
PV 1210大众汽车循环腐蚀试验/ISO 11997-1循环腐蚀试验
VDA 621-415 周期性交变应力下机动车漆膜的抗腐蚀性检验
每个检验周期为7天，由以下步骤组成：
第一天 根据德标 DIN 50021 SS进行24小时盐雾试验 1 day 24 hours DIN 50021 SS
接下来的4天，根据德标 DIN 50017 KFW进行4周期的冷凝水－交变气候试验 4 days DIN 50017 KFW
后2天，根据德标 DIN 50014在 23°C， 50%相对湿度条件下进行标准气候试验 2 days DIN 50014 Standard climate
检验时间需要预先商定，最少要持续4到6个周期，也就是4-6周 Continue 4-6 weeks
试验样板要与水平线成60到75度放置于试验设备中，也可以悬挂在设备中。从盐雾试验到冷凝水试验转换过程中，试验样板不需要干燥
GM 14872 （GM 9540P）通用汽车循环腐蚀试验
DIN EN ISO 6988 金属和其他无机涂层.通常凝露条件下的二氧化硫腐蚀试验
