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Cork insulation; a complete illustrated textbook on cork insulation ...

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ASPHALT 473<br />

Another series of tests were c<strong>on</strong>ducted <strong>on</strong> the relative infiltrati<strong>on</strong><br />

of <strong>cork</strong>board in respect to thickness. Following is a typical average<br />

of these tests:<br />

1<br />

DENSITY OF CORKBOARD 0.854 LBS. PER BD. FT. AIR INFILTRATION<br />

VALUES GIVEN IN CU. FT./SQ. FT./HR./40 POUNDS PRESSURE.<br />

Thickness<br />

of<br />

<str<strong>on</strong>g>Cork</str<strong>on</strong>g>board Cii. Ft.<br />

1 inch 485<br />

2 inch 343<br />

3 inch 239<br />

4<br />

5<br />

6<br />

7<br />

inch<br />

inch<br />

inch<br />

inch<br />

186<br />

163<br />

1 SO<br />

132<br />

8<br />

9<br />

10<br />

1<br />

12<br />

inch<br />

inch<br />

inch<br />

inch<br />

inch<br />

124<br />

105<br />

98<br />

97<br />

95<br />

The following specificati<strong>on</strong>s cover an oxidized asphalt obtained<br />

from an asphaltic base crude oil, usually Mexican:<br />

SPECIFICATIONS FOR 180/200° F. STANDARD OXIDIZED ASPHALT<br />

Minimum Maximum<br />

Specific gravity at 60° F 1.045 1.065<br />

Melting point (ball and ring) 180° F. 200° F.<br />

Flash point (open cup) 460° F.<br />

Penetrati<strong>on</strong> : 32° F. 200 gram 60 sec<strong>on</strong>ds 6 25<br />

77° F. 100 gram 5 sec<strong>on</strong>ds 15<br />

115° F. 50 gram 5 sec<strong>on</strong>ds 45<br />

Volatility, 50 grams 5 hrs. at 325° F 1%<br />

Bitumen soluble in CSa 99.5%<br />

CORK DIPPING PAN.<br />

Specificati<strong>on</strong>s.—This oil-burning <strong>cork</strong> dipping pan is used for melt-<br />

>Vi7 //AEROJL TORCH<br />

c<strong>on</strong> /*> uaet^/or ae/rf-pvrpinri<br />

pil3 P^A'^can /•< uar^ for heo/iHf a3^ir/f,far.piM, mr*.<br />

fair', cAf*'jiccr/3 «(c, ar/se Ant^/wf sand<br />

-MODERN CORKBOARD DIPPING PAN, MANUFACTURED BY<br />

AEROIL BURNER CO., UNION CITY, N. T-

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