Corrosion problem of aviation kerosene silver sheets
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The analysis of silver sheet corrosion for our plant’s aviation fuel products shows values that fluctuate between grade 0 and grade 1. As for what constitutes grade 1 and what constitutes grade 0, our laboratory is unable to provide clear criteria for determination, which makes it seem highly subjective. I wonder if other professionals have encountered this issue? Are there any regulatory documents specifying the requirements? Thank you for participating.
We ran into it, but we didn’t figure it out; we’re still learning*.
Silver sheet corrosion is a qualitative indicator rather than a quantitative one; it involves observing the color changes of the silver sheets being tested. The distinction between grade 0 and grade 1 can sometimes vary from person to person – in stricter assessments it might be classified as grade 1, while in more lenient assessments it could be rated as grade 0. However, for grades 2 and above, there is a very clear difference, making it easy to make an accurate judgment. By providing training to maintain a stable workforce of laboratory technicians, human error can be minimized as much as possible. If you often experience fluctuations between level 0 and level 1, it is likely a problem with your operation methods, indicating that the corrosion prevention for the product is not optimal yet.
●Technical features: 1) Complies with IP227； 2) Testing can be carried out at 50°C, including 1 stainless steel bath and 1 4-hole lid for placing the test tubes, as well as 1 manifold to connect water to the condenser ； 3) Ceramic-coated stainless steel surface ； 4) 1 stainless steel inner wall and 1 4-hole lid for placing test tubes ； 5) 1 manifold can connect water to the condenser ； 6) Electronic stirrer ； 7) Stainless steel heater ； 8) Electronic temperature control with PID microcomputer control; temperature accuracy of 0.1℃, Pt100 RTD temperature sensor with an accuracy of 0.1℃ ； 9) 1 ASTM 12C thermometer ； 10) The safety device can cut off the power supply for protection; it emits an alarm light when overheating occurs or when the liquid level in the bathtub is too low ； 11) The control box is on the right, easily accessible; it includes electronic components, an aluminum control panel, and English prompts ； 12) English operation manual ； 13) Power supply: 220 V/50 Hz, 1200 W ； 14) Dimensions LWH: 600 x 400 x 900 mm, weight approximately 60 Kg ；
Experience from other factories http://www.cqvip.com/qk/94406X/200501/15789870.html
There are specific standards for silver sheet corrosion; it may be that the analysts are not fixed and each person uses different standards, or it could be that the properties of your oil products do indeed vary
“SH/T 0023-90 Test Method for Silver Sheet Corrosion of Jet Fuel” http://bbs.hcbbs.com/viewthread.php?tid=128473