Spunbond Air Media Metric Units
Product Type Area weight (g/m²) Tensile strength
MD / CD (N/5cm)
Elongation
MD / CD (%)
Air perm (l/m²*s)
142/180 220 685/460 31/32 320
468/100 100 230/210 22/27 2000
478/170 170 610/430 27/23 280
478/235 235 825/630 30/30 180
         
Spunbond Air Media US Units
Product Type Area weight (oz/yd²) Grab Test
Breaking Force MD / CD (lbf)
Elongation
MD / CD (%)
Air perm ASTM
D 737
(cfm)
142/180 6.49 150/110 31/32 47
468/100 2.95 50/47 22/27 280
478/170 5.01 130/95 27/23 45
478/235 6.93 180/1440 30/30 30
         
Specialty Air Spunbond Media Metric Units
Product Type Area weight (g/m²) Tensile strength
MD / CD (N/5cm)
Elongation
MD / CD (%)
Air perm (l/m²*s)
068/15 15 20/20 20/22 >5500
068/30 30 60/60 28/28 3500
068/50 50 60/60 21/23 3000
040/250 250 880/660 30/25 600
132/250 250 950/750 30/37 1000
103/160 160 560/440 70/90 1300
         
Specialty Air Spunbond Media US Units
Product Type Area weight (oz/yd²) Grab Test
Breaking force
MD / CD (lbf)
Elongation
MD / CD (%)
Air perm ASTM
D 737
(cfm)
068/15 0.44 5/5 20/22 990
068/30 0.88 13/13 28/28 480
068/50 1.47 13/13 21/23 460
040/250 7.37 190/150 30/25 90
132/250 7.37 210/170 30/37 120
103/160 4.72 120/100 70/90 190