The GJB150.12A-2009 standard specifies the information that military equipment needs to collect during the sand dust test. The details are as follows:
First, the information needed before the sand dust test
For general information, see 3.8 in GJB150.1A-2009. The special information is as follows:
Test temperature
2. Relative humidity;
3. Wind speed
4. The concentration of sand or dust;
5. Work requirements;
6. The direction of the test piece and the exposure time in each direction;
7. The method of removing sand dust used in use.
Second, the information needed in the test
For general information, see 3.11 in GJB150.1A-2009. The special information is as follows:
1. The concentration of sand dust regularly detected;
2. The relative humidity value detected periodically.
Third, the information needed after the sand dust test
For general information, see 3.14 of GJB150.1A-2009. The special information is as follows:
1. The initial direction of the test piece and the change in direction during the test;
2. Test conditions (temperature, relative humidity, wind speed, sand/dust concentration and duration) for each test section;
3. Results of each visual inspection and performance test.
1.5" Flat Plate Casters,1.5 Inch Black Pvc Casters,1.5 Inch Pvc Brake Caster Wheels,small Casters
L&T CASTER WHEEL CO., LTD , https://www.lntsco.com