Before people mastered the way to distinguish four kinds of salt spray test on the test results, today we have a chat together these hazards salt spray chamber and what were the results of the five-factor test Yes.
1, the brine pH
It is well known in the future with a good normal saline, ph value brine should be from 6.5 to 7.2 in the middle, attributed to neutral, but in fact some salt purity does not do a very pure, or due to the water problem is prompted with brine ph value is not within a predetermined range, which predetermined time people with brine, which should be detected with a pH test paper PH, once the pH of the brine higher than the standard, can be added in a small amount of material to carry out together, if it is less than this standard, it is necessary to add some soda conducted in close until the ph value to achieve the standard. If the pH of the brine is not up to standard, that would immediately endanger the final test results.
2, collect settlement
People usually use the whole process, often encounter the use of normal, not knowing the status of the settlement amount is not large, once encountered such a thing, one must first take into account the brine is not a leak, then we take into account the nozzle is not there are split, the mist-tube is not skewed, the middle set and the mist-tube plastic hose is not blocking other reasons.
3, set temperature problems
If the salt spray chamber temperature setting on the problems, it is very significant, there is no doubt there is a big danger to the test results.
4, environmental chambers corrosion problem settlement
As a key indicator of the value of salt spray test, environmental test chamber corrosion settlement standard is 1 ~ 2ml / 80cm2 · h, if the whole process of the test, corrosion-resistant standard settlement did not, that there is no doubt the end result will cause harm, encountered such a thing, to be able to carry out comparative tests according to the total amount of brine.
5, salt concentration problems
Standard saline concentration should be 5%, if the salt concentration is too large once, immediately increase the level of erosion of the test.