Table 8-1.—Specifications On Supply CylindersCapacity at normal pressureand temperature* . . . . . . . . . . . . . . . . 50 poundsWorking pressure . . . . . . . . . . . . . . . . . 1,800 to 2,015psiICC specification . . . . . . . . . . . . . . . . . ICC3ADimensions (approx.). . . . . . . . . . . . . Diameter, 8 1/2inches; length,51 inchesWeight, empty . . . . . . . . . . . . . . . . . . . 110-115 poundsOutlet connection . . . . . . . . . . . . . . . . 3/4 inch* Temperature of 68° - 70°F and atmospheric pressure.until amendment to Department of Transporta-tion (DoT) regulations, such markings will remainin use.Compressed gas cylinders, including CO2cylinders must not be refilled if the hydrostatictest date has expired. This date, expressed bymonth-year, e.g., 8-70, is stamped on the shoulderof the cylinder each time the cylinder is retested.The hydrostatic test date is considered as havingexpired if the latest date stamped on the cylinderprecedes the current date by more than 5 years.Cylinders that do not exceed 2 inches in out-side diameter and that are less than 2 feet longare exempt from the hydrostatic retest.The hydrostatic retest date applies to multi-place life raft cylinders; if the cylinder is due fora test, discharge and disconnect the cylinder.Obtain a new cylinder from supply as a re-placement, and forward the old cylinder to anactivity capable of conducting a hydrostatic test.Many nonshatterable cylinders are identifiedby the words NONSHATTERABLE, NON-SHAT, or SHATTERPROOF stamped (notstenciled) on the shoulder or side of the cylinder.Substitution of a “shatterable” for a “non-scatterable” cylinder is not authorized.Personnel who handle compressed gas cyl-inders must be familiar with the color coding ofcylinders. Color coding is provided as a hazardwarning, and should not be used by itself toidentify the contents of a cylinder. In the event ofconflict with other markings, or doubt as to thecontents, the cylinder should be returned to thelocal supply activity, (non-RFI).All carbon dioxide inflation cylinders mustbe painted gray, and markings must be inblack letters 1/4-inch high. The informationmust include gross weight, tare weight, weightof carbon dioxide, and date of latest recharge.Paint and stencil the cylinder as required,and ensure that all markings are included asnecessary.Ensure that all carbon dioxide cylinders usedfor life raft inflation assemblies received fromsupply, except those used on the one-man rafts,have syphon tubes installed.Gently tap the inverted cylinder with asmall piece of wood. If any rust or othercontamination falls from the cylinder, re-ject that cylinder, and draw another cylinderfrom supply; repeat the contamination check.Replace the stem in the inflation assemblyvalve, install a new sealing washer, and threadthe inflation assembly valve onto the cylinder andtighten.Inspection for deterioration of the cylinder willconsist of a visual examination for the defectslisted below.Cylinders with defects that approximate thephysical dimensions indicated in the following listwill be condemned and returned to supply.1. Corrosion pits in a general corrosion areathat exceed a depth of 1/32-inch, or isolated pitsnot in a general corrosion area that exceed a depthof 5/64-inch.2. Dents that exceed a depth of 1/16-inch, orwhose major diameter is more than 32 times thedepth.3. Cuts or gouges more than 1/16-inch, orwhose major diameter is more than 32 times thedepth.4. Visible arc or torch burns.5. Evidence that the cylinder has been in afire.6. Discernible bulges.8-3
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