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MI1,C-11796B <br /> 4.6.11.2 Details of construction and opera- the apparatus so that the felt pad wiper can <br /> tion. The following are the essential details wipe a streak approximately 2 inches long. <br /> of construction and operation of the remov- The length of the wiping stroke shall be 2 <br /> ability apparatus: inches and the speed of the machine shall be <br /> regulated to 30 ± 1 cycles per minute. A com- <br /> a) Glass tube: plete wiping cycle shall consist of a stroke <br /> length, inches — 6 (approxi- approximately 2 inches in one direction with <br /> mately) a return stroke to the starting position. At <br /> Inside diameter, mm—10 the completion of the required number of <br /> Outside diameter, mm—12 cycles, the compound under the wiper should <br /> be completely removed (as determined visu- <br /> (b) Glass bulb: ally) over an area 1/4 inch wide and the en- <br /> Length, inches — 2 (approxi- tire length of the stroke. <br /> mately) <br /> Outside diameter, inches — 1.5 5. PREPARATION FOR DELIVERY <br /> (approximately) <br /> Note. The glass bulb can be blown from 5.1 Packaging, packing and marking. The <br /> suitable tubing, or a thistle-tube top can corrosion preventive shall be packaged in 5- <br /> be fused to the glass tube. The glass-bulb pound, 35-pound, or 400-pound containers, <br /> shown in figure 5 can be obtained from as specified by the procuring activity (see <br /> the Corning Glass Works Co. 6.2). Unless otherwise specified in the con- <br /> (c) Felt (for making plug) ; tract, the packaging, packing and marking <br /> Composition—100 percent wool of the corrosion preventive shall be Level A <br /> Weight, ounces per square yard or C as specified in Standard MIL-STD-290. <br /> —190 <br /> Thickness, inches—s/4 6. NOTES <br /> (d) Funnel (thistle type) : 6.1 Intended use. Corrosion preventive <br /> Overall length, inches—8 (ap- compound is intended for application to mili- <br /> proximately) tary materiel, as illustrated in the following <br /> nonmandatory examples: <br /> Outside diameter of stem, inches <br /> —1/2 6.1.1 Class 1 —Hard-film compound. (.Cor- <br /> (e) Weight of the wiping assembly responds to P-4 of MIL-P-116). (Applied <br /> (consisting of the glass tube, felt in the molten state by dipping, brushing, <br /> plug, and contained solvent), swabbing, etc.) : <br /> grams—45 ± 0.5 <br /> (a) For unshielded outdoor storage of <br /> (f) Rate of efflux of the solvent, grams gun tubes, etc. <br /> per minute—15 ± 0.5 <br /> (b) For protection of small metal parts, <br /> (g) Length of wiping stroke, inches— either packaged or unpackaged. <br /> 2 (approximately) <br /> (c) For long-term indoor storage pro- <br /> (h) Duration of wiping cycle, seconds tection of highly finished sur- <br /> -2 (approximately) faces, such as recoil mechanisms. <br /> 4.6.11.3 Test procedure. The specimens 6.1.2 Class IA—Hard-film compound, non- <br /> shall be placed individually in a position in slick. (Corresponds to P-4 of MIL-P-116). <br /> 10 <br />