Oil and Grease Quiz

What is the proper oil and grease bottle preparation?

• New Bottles

• Washed and rinsed with water bottles.

• Washed, rinsed with water and solvent bottles.

What are the preservations used for oil and grease?

• KOH

• 1 + 1 HCL

• NaOH

• HNO3

Both 1+1 HCl and 1+1 H2SO4 can be used for Oil and Grease preservations.

• True

• False

What is the minimum volume required for analysis?

• 200ml

• 500ml

• 1L

• 100mL

The Sample must be in pH 7 or above.

• False

• True

During analysis, the sample needs to be shake vigorously. How long does it take?

• 30s

• 60s

• 90s

• 120s

The sample collected for oil and grease can be subdivide for other analysis.

• True

• False

• Depends

How long does the sample being kept in the decicator after distillation?

• 1Hr

• 1 Week

• Until constant weight achieved.

• Until expected value obtained.

How to determine the initial sample volume?

• Fill the sample bottle to mark with water, then pour into 1L graduated cylinder

• Weigh the empty container and cap, calculate the sample volume by difference from initial weight

• Both

The Sodium Sulfate used must be rinsed with Hexane before use.

• True

• False