1. ASTM C423 – Sound Absorption 8 Panels – 2" PEPP Arranged in 2 x 4 Fashion : with 1" bonded pad 2. ASTM C423 – Sound Absorption 8 Panels – 1" PEPP Arranged in 2 x 4 Fashion : with 12" spacing between all panels 3. ASTM C423 – Sound Absorption 1" PEPP in 16" airspace box : Type E mounting, 6 panels. : with glass mat facing down, into mounting box 4. ASTM C423 – Sound Absorption 6 Panels – 1" PEPP in 16" airspace box : Type E mounting, 6 panels. : with glass mat facing up 5. ASTM C423 – Sound Absorption 8 Panels – 1" PEPP Arranged in 2 x 4 Fashion : with 24" spacing between all panels 6. ASTM C423 – Sound Absorption 8 Panels – 1" PEPP Arranged in 2 x 4 Fashion : on 1x2 7. ASTM C423 – Sound Absorption 6 Panels – 1" PEPP in 16" airspace box : Type E mounting, 6 panels. 8. ASTM C423 – Sound Absorption 8 Panels – 2" PEPP Arranged in 2 x 4 Fashion : with 12" spacing between all panels 9. ASTM C423 – Sound Absorption 8 Panels – 2" PEPP Arranged in 2 x 4 Fashion : on 1x2 10. ASTM C423 – Sound Absorption 8 Panels – 2" PEPP Arranged in 2 x 4 Fashion : with 7 strips of 1"x2" PEPP on center panels 11. ASTM C423 – Sound Absorption 8 Panels – 2" PEPP Arranged in 2 x 4 Fashion : with 24" spacing between all panels 12. ASTM C423 – Sound Absorption 6 Panels – 2" PEPP in 16" airspace box : Type E mounting, 6 panels 13. ASTM C423 – Sound Absorption 8 Panels – 1" PEPP Arranged in 2 x 4 Fashion : with 1" bonded pad below PEPP 14. ASTM C423 – Sound Absorption 8 Panels – 1" PEPP Arranged in 2 x 4 Fashion : with layer of Insulaymnt™ by Quiet Walk 15. ASTM C423 – Sound Absorption 8 Panels – 1" PEPP Arranged in 2 x 4 Fashion 16. ASTM C423 – Sound Absorption 1" ARPRO Porous Expanded Polypropylene PEPP Mounting Type E400 17. ASTM C423 – Sound Absorption 1-3/4" ARPRO Porous Expanded Polypropylene PEPP Mounting Type E400 18. ASTM C423 – Sound Absorption 3/4" ARPRO Porous Expanded Polypropylene PEPP Mounting Type A 19. ASTM C423 – Sound Absorption 1" ARPRO Porous Expanded Polypropylene PEPP Mounting Type A 20. ASTM C423 – Sound Absorption 1-3/4" ARPRO Porous Expanded Polypropylene PEPP Mounting Type A 21. ASTM C423 – Sound Absorption 1-3/4" ARPRO Porous Expanded Polypropylene PEPP Mounting Type K 22. ASTM C423 – Sound Absorption 2" ARPRO Porous Expanded Polypropylene PEPP Mounting Type K 23. ASTM C423 – Sound Absorption 3/4" ARPRO Porous Expanded Polypropylene PEPP Mounting Type E400 24. ASTM C 423-98, Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method. For PEPP expanded polypropylene product 25. ASTM C423-99a - SOUND ABSORPTION. TESTING CONDUCTED ON SIX BAFFLES CONSISTING OF 1" THICK PEPP 26. ASTM C423-99a - SOUND ABSORPTION. TESTING CONDUCTED ON SIX BAFFLES CONSISTING OF 2" THICK PEPP 27. ASTM C423-99a - SOUND ABSORPTION TESTING CONDUCTED ON 1" PEPP WALL PANEL WITH TUFTANE FILM ADHERED TO SURFACE 28. ASTM C423-99a - SOUND ABSORPTION TESTING CONDUCTED ON 1" PEPP WALL PANEL WITH TUFTANE FILM ADHERED TO SURFACE
