Debris Netting Tests

Debris Netting Tests

Test TypeGreen & Orange NetBlack NetWhite Net
Mesh Breaking Strength (length)61 lb.83 lb.255 lb.
Mesh Breaking Strength (width)93 lb.80 lb.173 lb.
Elongation at break (length)61%50%51%
Elongation at break (width)88%98%141%
Yarn Breaking Strength4 lb.4 lb.16 lb.
Burst Strength138 psi97 psi390 psi
Wounded Burst Strength53 psi44 psi91 psi

  1. Breaking Strength of Fabrics (Grab Method: CAN/GSB-4.2 Method 9.2-M90)
    This test is similar to ISO 5082:1982
    A 4″ wide x 6″ tall specimen of fabric is held between 2 vertical clamps. Tension is applied so that rupture of the specimen occurs within 20 seconds.
  2. Breaking Strength of Yarns (Single Strand Method: CAN/GSB-4.2 Method 9.4-M91)
    A single strand of yarn is held between 2 clamps. Tension is applied so that rupture of the specimen occurs within a specified interval of time.
  3. Burst Strength (Diaphragm Pressure Test: CAN/GSB-4.2 Method 11.1-94)
    This test is technically equivalent to ASTM D 3786-87.
    A fixed area of fabric is subjected to pressure on one side through a diaphragm, and the pressure is gradually increased until the fabric is ruptured.
  4. Wounded Burst Strength (Diaphragm Pressure Test: CAN/GSB-4.2 Method 11.1-94)
    Same as previous except a 12.5 mm cut is made to the test area.
Video

The video below shows the 6 tests being performed on the White High Strength Net.

 

Drop tests were conducted in 2008 on 2 panels of stock net (black and white). The drop was 20 feet and the panel measured 12′ x 25′. The drop was made over the center of the net using an assembled piece of wood weighing 15 lb.

 

Black Net
The chunk of wood broke through the net after 2 drops.

 

White Net
No damage to the net after 5 drops. A 6th test was performed using a 55 lb cast iron weight with no damage to the white net.

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