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Untitled Document
Block Board
Standard Thickness : 19mm
,25mm
Available Sizes in mm :
- 2440x1220, 2440x915
- 2135x1220, 2135x915
- 1830x1220, 1830x915
In feet : 8x4, 8x3, 7x4, 7x3, 6x4, 6x3, 6x2.5
Technical Specification:
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Property
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Unit
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Requirements of IS: 1659
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Test Results
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Length Tolerance
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mm
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-0, +6mm
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+6mm -0mm
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Width Tolerance
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mm
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-0, +3mm
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+3mm -0mm
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Thickness Tolerance
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--
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-5, +5mm
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+2mm +2mm
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Variation in Thickness
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mm
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Less than 0.25mm
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---
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Square ness (max)
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%
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0.2
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0.1
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Edge Straightness
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%
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0.2
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0.1
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Water Resistance
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Cyclic test
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1 Cycle
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2 Cycle
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Dimension Change
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mm
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-1mm +1mm
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-0.5+0.5mm
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Caused by Humidity
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---
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---
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Mycological Test
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21 days test
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Once
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Twise
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Adhesion of plies
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---
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Pass
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Excellent
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Spot Test
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---
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Colour Change
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Yellow to Red
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MOE & Mor Test
(A) Mor (Min)
Average
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N/Sq.mm
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34
40
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38
45
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(B) Mor(min)
Average
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N/Sq.mm
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3400
4000
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3800
4500
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