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Table 8 Score matrix and hole enlargement behaviour penalty for calculation of RD values using Method 2

From: Development of a single resistance to damage metric for mosquito nets related to physical integrity in the field

Bursting Strength (kPa)

< 250

250–299

300–349

350–399

400–449

450–499

500–549

550–599

600–649

650 − 600

≥ 700

Bursting Strength Score

1

2.5

5

7.5

10

12.5

15

17.5

20

22.5

25

Snag Strength (N)

< 20

20–39

40–59

60–79

80–99

100–119

120–139

140–159

160–179

180–199

≥ 200

Snag Strength Score

1

2.5

5

7.5

10

12.5

15

17.5

20

22.5

25

Abrasion Resistance (rubs)

< 25

25–50

75–100

125–150

175–200

250

300

350

≥ 400

Abrasion Resistance Score

1

3

6

9

13

16

19

22

25

Hole Enlargement (mm)

≥ 21 mm

20 − 6 mm

≤ 5 mm

Hole Enlargement Resistance Score

10

20

25

Secondary Damage

Laddering

Unravelling

 

Tearing combined with Laddering or Unravelling

Secondary Damage Penalty

10

20

 

30

Penalty Score

=Secondary damage penalty*Hole enlargement resistance score/100