Home About Us Laboratory Services Forensic Science Communications Back Issues January 2003 Rees and Schwartz, Table 2

Rees and Schwartz, Table 2

Table 2: Tape Averages

 

Part A

Part B

Tape

Method

 

Fea-tures

Con-trast

Sharp-ness

Area

 

Fea-tures

Con-trast

Sharp-ness

Area

Clear
ScotchTM

ABP

L-D

 

8

42

1.4

4.5

1.4

4.7

1.7

4.6

         

Yellow
transparent
packing

ABP

L-D

 

22

34

1.8

2.3

1.8

2.4

3.0

3.5

 

47

7

3.9

1.2

3.8

1.2

4.3

1.7

Red
transparent
packing

ABP

L-D

 

11

47

1.6

4.3

1.7

4.9

2.2

4.9

 

20

8

2.1

1.2

2.2

1.2

2.9

1.5

Green
transparent
packing

ABP

L-D

 

6

32

1.2

3.2

1.2

3.3

1.7

3.8

 

23

7

2.4

0.88

2.4

1.0

2.9

1.3

Blue
transparent
packing

ABP

L-D

 

32

49

2.8

4.2

2.9

4.4

3.4

4.8

 

29

30

2.8

2.3

2.7

2.2

3.3

3.2

Light brown transparent
packing

ABP

L-D

 

49

51

3.6

3.9

3.6

4.2

4.2

5.0

 

48

31

3.1

2.4

3.2

2.4

4.5

3.3

Dark brown
packing

ABP

L-D

 

44

49

3.0

3.8

3.0

4.1

3.9

4.9

 

14

36

1.2

2.9

1.4

3.0

2.1

3.4

Gray
duct

ABP

L-D

 

22

2

2.8

1.2

2.7

1.2

3.2

1.6

 

12

0

1.8

0

1.8

0

2.4

0

Clear
packing

AG

L-D

 

51

51

4.5

4.5

4.5

4.5

4.8

5.0

 

45

40

3.8

2.7

3.9

2.7

4.4

3.9

Black
heavy-duty

AG

L-D

 

34

26

3.2

2.7

3.4

2.9

4.0

3.3

 

12

10

1.4

1.0

1.6

1.0

2.2

1.5

Black
decorate
and repair

AG

L-D

 

32

2

1.8

0.33

2.1

0.33

3.8

0.50

 

25

2

2.3

0.27

2.3

0.29

3.0

0.50

Black
vinyl electric

AG

L-D

 

26

42

2.3

3.7

2.7

3.8

3.7

4.4

 

21

0

2.1

0

2.3

0

2.9

0

Orange
transparent
packing

SSP

L-D

 

20

47

1.9

4.4

2.0

4.5

2.9

5.0

 

1

21

0.4

2.1

0.38

2.1

0.42

2.4

Cloudy
ScotchTM

GV

L-D

 

5

12

1.3

1.6

1.3

1.7

1.4

2.1

         

ABP=alternate black powder;  L-D=Liqui-Drox;  AG=ash gray powder;  SSP=sticky-side powder; 
GV
=gentian violet

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