Satisfactory BS&W is defined by which condition?

• A. S <0.1% and C <0.2%
• B. S <0.1% and C 0.2<0.4%
• C. S >0.1% or C >0.4%
• D. S <0.01% and C <0.2%

Answer: (A)

BS&W is about keeping contaminants out of fuel by limiting sediment and water to very small amounts. Being satisfactory means both limits must be met: sediment below 0.1% and water content below 0.2%. If either value creeps above its limit, the fuel isn’t considered acceptable because impurities can clog filters, cause corrosion, or promote microbial growth and fuel instability. The other options either allow too much water, permit a higher sediment or water limit, or suggest an overly lax or misplaced criterion, so they don’t align with the defined standard. Therefore, the valid condition is having both sediment under 0.1% and water under 0.2%.