Testing report of Physical performance

testing item

technical requirement

testing result

testing method

thermal conductivity
(core material/W(m*k)

≤0.040W(m*k)

0.024

GB/T 10297-1998

compressive strength,kpa

≥30kpa

52.7

JG149-2003

water absorption,%

≤424%

415%

JG149-2003

density of the panel
(three layers),kg/sqm

≥1.7*100

1.821*100

GB/T 6343-1995

bending resistance
under 0.5KN,mm

≤18.3

13.3

GB/T 9341-2000

cementation strength,Mpa

>0.1

0.18

JG149-2003

smog resistance(h)

/

no spot of erosion,
no color change

GB 5938-1986

weather resistance(h)

/

no damage on surface,color
changes on level 4-5

GB/T 17657-1999

oxygen index, %

>26

26.1

GB/T 2046-1993

horizontal burning
of PU

everage burning time
≤90s

77

GB/T 8332-1987

everage burning area
≤50mm

37

GB/T 8332-1987

wind resistance
data,Kpa

/

8

JG149-2003