Salt spray test is a kind of environmental test to
confirm the corrosion resistance of the products or metal materials by using the
artificial simulated salt spray environment created by the salt spray test
equipment. Stringent test depends on the duration of exposure.
Laboratory simulation of salt fog can be divided
into three categories: neutral salt spray test, salt spray test, acetate copper
accelerated acetic acid salt spray test.
(1) neutral salt spray test (NSS test) is one
of the most widely used in the field of accelerated corrosion test method. It
uses 5% sodium chloride solution, the solution pH value is adjusted in the
neutral range (7.2 ~ 6.5) as a spray solution. The test temperature is 35
degrees Celsius, and the precipitation rate of salt mist is 1 ~ 2ml/80cm/h.
(2) acetic acid salt spray test (ASS test) is
developed based on neutral salt spray test on. It is in the 5% Sodium Chloride
Solution to add some ice acetic acid, so that the pH value of the solution is
reduced to about 3, the solution becomes acidic, and finally the formation of
salt mist from the neutral salt fog into acid. Its corrosion rate is about 3
times faster than the NSS test.
(3) copper accelerated acetic acid salt spray test
(CASS test) is a kind of rapid salt fog corrosion test abroad newly developed
test, the temperature is 50 DEG C, adding a small amount of copper salt and
copper salt solution, strongly induced corrosion. Its corrosion rate is about 8
times as much as that of the NSS test.
Professional salt spray test engineers and test
equipment, test items include the neutral salt spray test, acid salt spray test
and copper accelerated salt spray test, test B117-11, ISO standards including
ASTM 9227-2012, GB-T 10125-2012, DIN EN 50021-2000, QB/T 3826-1999 etc..
[business scope]
1 computer classes: computer, display, mainframe,
computer components, medical equipment and other precision instruments, etc.
2 electronic communication categories: mobile
phones, radio frequency devices, electronic communication components, etc..
3 electrical appliances: household appliances,
lamps, electrical appliances, such as various types of household electrical
appliances;
4 other: packing box, transportation equipment,
etc..
Contact : Viola Zheng
Tel: +86-0755-25328679
Fax:+86-0755-8319 7625 ext.0
Email:viola.zheng@sgs.com
Address:Bantian Chian-Shenzhen Longgang
District Jihua Road No.430 Jiang Hao Industrial District 4 Buiding
SGS Zip code:518129
Website:www.sgsgroup.com.cn
