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y <br /> M11,C-11796B <br /> 3.5 Stability.The compound shall not foam sation at temperatures up to 120° F. for a <br /> and shall not separate into different phases minimum of 30 days (see 4.6.8.1). <br /> after storage at 225° F. and —40° F. (see ; <br /> 4.6.2). 3.12.2 Accelerated weathering. Class 1, 1A ' <br /> or 2 compound shall protect test panels <br /> 3.6 Volatility. The compound shall not against corrosion for a minimum of 300 op- <br /> volatilize more than 1.0 percent, by weight, erating hours (see 4.6.8.2). <br /> when heated for 3 hours at 221° — 230° F. <br /> (see 4.6.3). 3.12.3 Shed storage Class 3 compound <br /> shall protect test panels against corrosion <br /> 3.7 'Oxygen absorption (applicable to Class for a minimum of one year (see 4.6.8.3). <br /> 3 only). The pressure drop in the oxygen <br /> bomb shall not exceed 10 pounds per square 3.12.4 Outdoor storage. Class 1, 1A or 2 <br /> inch after 100 hours at 210° F. (see 4.6.4). compound shall protect test panels against <br /> corrosion for a minimum of one year (see <br /> 3.8 Miscibility with lubricating oil (appli- 4.6.8.4). <br /> cable to Class 3 only). A mixture of the com- <br /> pound and lubricating oil conforming to 3.12.5 Corrosiveness The compound shall <br /> Grade 1100 of Specification MIL-Ir-6082 produce no visible corrosive effects, such as <br /> shall show no separation after storage at staining, pitting or etching of the test speci- <br /> 170° F. (see 4.6.5). mens, nor shall it produce any weight gain <br /> or loss in excess of the following: <br /> 3.9 Abrasives. The total volume of centri- <br /> fuged sediment shall not exceed 0.05 milli- n: .D.a,n.fl�.�„�*� <br /> ur <br /> liters (ml.) and shall contain no abrasives ° c'"`i'"° <br /> which can paroduce scratches on glass slides Aluminum .............................................. 0.2 <br /> (see 4.6.6). Brass ........................................................ 0.2 <br /> Cadmium ........... 0.2 <br /> ..................................... <br /> Magnesium .............................................. 0.5 <br /> 3.10 Applicability The compound shall be steel .......................................................... 0.2 <br /> of such consistency that coatings 1.50±0.2 zinc .......................................................... 0.2 <br /> mils in thickness can be readily applied to <br /> steel panels (see 46.8.1.2). In addition to the above requirements, Class <br /> 3.10.1 The maximum permissible tempera- 3 compound shall not produce a weight gain <br /> ture of application of the compound shall or loss of more than 1.0 milligram per square <br /> be as indicated below for the specified class: centimeter on the lead specimen (see <br /> Class 1 or 1A—200°F. 4.6.8.5). <br /> Class 2 —19 0 F. 3.12.6 Stain (Applicable to Class 3 only). <br /> Class 3 —180° F. <br /> The original material, the 5 percent, and the <br /> 3.11 Slick (applicable to Class 1A only). 15 percent water emulsions of the compound <br /> The compound shall not leave an oil slick shall not produce any stain, discoloration, <br /> on salt water (see 4.6.7). or corrosion of the polished steel test panels <br /> Note. Slick is defined as an oily film floating on (see 4.6.8.6). <br /> salt water. <br /> 3.12 Corrosion protection. 3.13 Low temperature adhesion. A test <br /> panel coated with the compound shall pro- <br /> 3.12.1 Humidity cabinet. Class 3 compound duce no flaking when tested after exposure <br /> shall be capable of protecting test panels at —40±3°F. for a minimum of one hour <br /> against corrosion during continuous conden- (see 4.6.9). <br /> 3 <br />