MIL-DTL-19803G
3.5.9.1 Initial evaporation loss in vented condition. The converter shall not have a weight
loss greater than 3.0 pounds (1.36 kg) for a 24-hour period with the unit vented to the
atmosphere when tested as specified in 4.6.10.1.
3.5.9.2 Second evaporation loss in vented condition. The converter shall meet the
requirements specified in 3.5.9.1 when tested as specified in 4.6.10.2.
3.5.9.3 Evaporation loss in pressurized condition. The converter shall not have a weight
loss greater than 7.5 pounds (3.375 kg) for a 48-hour period when tested as specified in 4.6.10.3.
3.5.10 Secondary overpressure safety.
3.5.10.1 Secondary overpressure safety (standard temperature). The secondary
overpressure safety device shall not leak at a pressure below 175 psig (1,206.58 kPa), and the
frangible safety burst disc (see 3.4.10) shall rupture within a pressure range of 200 psig (1,378.95
kPa) minimum and 250 psig (1,723.68 kPa) maximum when tested as specified in 4.6.11.1. The
safety device shall provide a minimum flow of 150 Lpm with the safety disc in the ruptured
condition.
3.5.10.2 Secondary overpressure safety (low temperature). The secondary overpressure
safety device shall not leak at a pressure level below 175 psig (1206.58 kPa), and the frangible
safety burst disc (see 3.4.10) shall rupture within a pressure range of 200 psig (1378.95 kPa)
minimum and 315 psig (2171.84 kPa) maximum when tested as specified in 4.6.11.2. The safety
device shall provide a minimum flow of 150 Lpm with the safety disc in the ruptured condition.
3.5.10.3 Secondary overpressure safety (high temperature). The secondary overpressure
safety device shall not leak at a pressure below 175 psig (1206.58 kPa), and the frangible safety
burst disc (see 3.4.10) shall rupture within a pressure range of 175 psig (1206.58 kPa) minimum
and 250 psig (1723.68 kPa) maximum when tested as specified in 4.6.11.3. The safety device
shall provide a minimum flow of 150 Lpm with the safety disc in the ruptured condition.
3.5.11 Vibration. The converter shall show no evidence of mechanical failure, and the
evaporation loss shall be not greater than 3.0 pounds (1.36 kg) when tested as specified in 4.6.12.
3.5.12 Acceleration test. The converter shall show no evidence of mechanical or material
failure, and the evaporation loss shall be not greater than 3.0 pounds (1.36 kg) when tested as
specified in 4.6.13.
3.5.13 Shock test.
3.5.13.1 Shock test (procedure I). The converter shall show no evidence of mechanical or
material failure, and the evaporation loss shall be not greater than 3.0 pounds (1.36 kg) when
tested as specified in 4.6.14 and 4.6.14.1.
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