MIL-DTL-60585B (AR)
4.3.3 Testing
4.3.3.1 Plug. Ten plugs from each lot of plugs, when manufactured from sheet or strip
steel shall be subjected to a hardness test in accordance with ASTM E 18. The test may be made
on either face of the plug to determine compliance with the applicable drawing. Failure of any
plug to comply shall be cause for rejection of the lot.
4.3.3.2 Hydrostatic test (alternative designs). Each burster case, after cleaning but before
gaging and coating, shall be hydrostatically tested using equipment capable of performing the
test accurately and consistently. No portion of the burster case shall be restrained during
application of the pressure. The pressure shall be applied until the minimum pressure is reached
and then held for the minimum time specified on the applicable drawing 10542950. The
equipment shall be calibrated prior to the start of each day's operation and at intervals of not
over 4 hours during operation. It shall also be calibrated prior to re-starting the operation after a
stoppage of 2 hours or more. Failure of any burster case to comply with the requirements of the
drawing 10542950 shall be cause for rejection of the burster case. Burster cases which comply
shall be stamped with the letter "H" as indicated on the applicable drawing.
4.3.3.3 Joint sections (alternative designs). Five burster cases from each lot after
hydrostatic test and air test, but prior to application of protective coating, shall be sectionalized
into 2 segments by cutting longitudinally along the assembly axis. Care shall be exercised to
assure that no damage occurs to the brazed joint section. The braze metal of the joints of each
segment shall be visually examined to determine compliance with 3.3. Failure of any specimen
to comply shall be cause for rejection of the lot.
4.3.3.4 Tension test. Two burster casings, prior to insertion of the reinforcing tube, from
each lot shall be subjected to tension testing to determine compliance with the yield strength and
elongation requirements of the applicable drawing 10542949. One full section test specimen as
prescribed by ASTM E 8 shall be taken from the tube portion of each of the 2 burster casings,
and tested in accordance with ASTM E 8. Failure of any specimen to comply shall be cause for
rejection of the lot.
4.3.3.5 Air test. Each burster case shall be subjected to an internal air pressure test under
water to determine compliance with the requirements specified on the applicable drawing
10542950. Each burster case shall be mounted in an approved fixture in such a manner that the
burster case is completely submerged. The inspector shall ascertain that the required pressure is
reached and the water has been permitted to settle, after immersion of the case under test, prior to
start of timing. Observation for leakage shall be made for the entire time the case is required to
be pressurized. The equipment shall be calibrated prior to the start of each day's operation and at
intervals of not over 4 hours during operation. It shall also be calibrated prior to re-starting the
operation after a stoppage of 2 hours or more. A suitable corrosion inhibitor shall be added to the
water. Failure to comply, as evidenced by the presence of bubbles on the surface of the burster
case or rising to the surface of the water, shall be cause for rejection of the burster case. Burster
cases that comply shall be stamped with the letter "A" as indicated on the applicable drawing.
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