1. BN-216 carbon residue tester for petroleum products
2. BN-103 automatic pour point tester
3. BN-121 automatic open flash point tester
4. BN-122 automatic closed flash point tester
5. BN-2000 fluorescence sulfur tester
6. BN-031 copper strip corrosion tester
7. BN-108 Gasoline Oxidation Stability Tester
8. BN-100 automatic distillation tester
9. BN-126 micro saturated vapor pressure tester
10. BN-040 lubricating oil foam characteristic tester
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