2. The following plastics will destroy your comics within two years:
A. Vinyl
B. Polyethylene
C. Polypropylene
D. Polyester Film like Mylar
E. None of the above

3. Which of the following is potentially harmful to your comics?
A. Oxygen
B. Humidity over 50% RH
C. Off gassing from unstable plastic bags
D. Room temperature
E. UV light
F. None of the above
G. All of the above

4. As raw material, which plastic costs the most?
A. Polyethylene
B. Polypropylene
C. Styrene
D. Polyester film like Mylar

5. Will ordinary cardboard damage comic books if used as backing boards?
A. Yes
B. No

6. Are acid free boxes needed if Mylar sleeves are used to protect the comics?
A. Yes
B. No

7. Mylar bags costing 5 times as much as Poly-bags are not worth their extra expense to protect comics.
A. True
B. False
C. Both

8. The ratio of Poly-bags to Mylar bags in any collection is inversely proportional to the collector's knowledge of the collection's environment.
A. True
B. False

9. Comics stored inside of Mylar bags and a cool environment will be preserved with only minimal deterioration for:
A. 20 years
B. 50 years
C. 100 years
D. 300 years

10. Comics inserted into regular Poly-bags and stored in ordinary cardboard boxes at room temperature and only brought out for display for less than 2 days a month will show only minimal change after:
A. 20 years
B. 50 years
C. 100 years
D. None of the above.

ANSWERS
1. C
2. E
3. G
4. D
5. A
6. A
7. C
8. A
9. C
10. D

If you correctly answered 10 out of 10, read no further; in fact call me, I might learn something from you. If you had anything less than a perfect 10, it might help us all if you read about Storage and Preservation.

9-10 correct; You are doing your customers or friends a real service by giving them your advice.

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