Silicone sponge rubber shall meet the following specifications:
TEST VALUE
ASTM
PHYSICAL TEST
SOFT
MEDIUM
TEST METHOD
Compression Deflection
15 to 50 kPa
40 to 100 kPa
ASTM D 1056
(compressed 25 percent at
room temperature)
Tensile Strength
345 kPa(min)
515 kPa(min)
ASTM D 412
Elongation at break
75 percent
100 percent
ASTM D 412
(min)
(min)
Compression Set
15 percent
5 percent
ASTM D 297
(Compressed 50 percent
(max)
(min)
for 22 hours at 100 C
Density
0.012
0.017
ASTM D 297
pci(min)
pci(min)
Hydrostatic
Method
TEST VALUE
ASTM
PHYSICAL TEST
SOFT
MEDIUM
TEST METHOD
Compression Deflection
2 to 7 psi
6 to 14 psi
ASTM D 1056
(compressed 25 percent at
room temperature)
Tensile Strength
50 psi(min)
75 psi(min)
ASTM D 412
Elongation at break
75 percent
100 percent
ASTM D 412
(min)
(min)
Compression Set
15 percent
5 percent
ASTM D 297
(Compressed 50 percent
(max)
(min)
for 22 hours at 212 F
Density
0.012
0.017
ASTM D 297
pci(min)
pci(min)
Hydrostatic
Method
Workmanship and metalwork fabrication of check valves shall be in
accordance with the details shown. Install check valves accurately
vertically and adjust to the required elevation.
2.5
CONCRETE
Concrete shall conform to [the requirements specified in Section [03307]
[_____]] [ASTM C 94/C 94M, Option A, with a [19][_____] mm [3/4][_____] inch
Nominal Maximum Size of Aggregate, a maximum slump of 125 mm 5 inches, air
content of [5] [_____] percent, and a compressive strength of [17.2][_____]
MPa [2500][_____] psi] [packaged normal weight concrete conforming to ASTM
C 387].
SECTION 02525A
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