Outer tube polypropylene:
Hydrochloric acid, boric acid, sulfuric acid, citric acid, lactic acid, phthalic acid, sodium hydroxide, potassium hydroxide, ammonia water
Outer tube material stainless steel:
Petroleum, diesel, heating oil, hydraulic oil, machine oil, engine oil, gasoline, formic acid (85 %), ethyl glycol, petroleum, "MEK (methyl ethyl ketone = butanone), octane, ethanol, methanol, butanol, acetan, toluene, isobutanol, propanol, xylene, urea solutions, naphtha, diesel
Outer tube Hastelloy C:
Gasoline, formic acid (85%), ethylene glycol, petroleum, MEK (methyl ethyl ketone = butanone), octane