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Specification

LSP 207
Density 80-90 Kgm/3 BS4443P1M2

CompressionSet(75% 22Hrs.70oC)

16% BS4443P1M6
Tensile Strength 110KPa BS4443P1M3A
Elongation at Break 160% BS4443P1M3A
Oxygen Index 59% BS2782P1
BS4735 Flammibility

Does not burn, melt or drip.
  Char Formed
EP1 Radiateur Class M1

Indentation Hardness Index

308N BS4443P2M7

Pounding Class BS3379

V BS4443P5
Smoke Emission 50% BS5111

Temperature Working Range

30 to 110oC Continuous
Thermal Conductivity 0.050 Wm-1K-1
   
Acoustic Specification ASTM C384 and BS EN 20354 (previously) BS 3638 : 1963 are both Standard tests for measuring absorption coefficients. ASTM C384 is laboratory scale test measuring normal incidence coefficients. BS EN 20354 is a full scale reverberation room test, measuring random incidents coefficients. Both methods give an indication of the potential performance of the material under the test. Whilst the latter reverberation room method may prove more relevant in most practical situations, neither test can predict overall performance in a real application.
   

Absorption Coefficients : ASTM C384

Thickness (m/m ) Frequency(Hz)
  125 250 500 1000 2000 4000
12   0.04 0.14 0.15 0.29 0.54
25   0.07 0.14 0.32 0.80 0.71
50 0.11 0.11 0.50 0.86 0.84 0.90
 

Absorption Coefficients : BS EN20354(BS3638) :1963

Thickness (m/m ) Frequency(Hz)
  125 250 500 1000 2000 4000
12 0.06 0.09 0.18 0.29 0.38 0.58
25 0.09 0.22 0.38 0.52 0.63 0.73
50 0.24 0.47 0.75 0.84 0.87 1.02
100 0.41 1.01 1.10 0.96 1.03 1.06