WorksheetsOil and Grease Quiz
Total questions: 11
Worksheet time: 6mins
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
What is the Method Number for Oil and Grease based on APHA?
APHA 5500 C
APHA 5520 B
APHA 2150 A
APHA 3120 B
