MIL-STD-1330 Precision Cleaning And Testing Of Shipboard Oxygen, Helium, Helium-Oxygen, Nitrogen, And Hydrogen SystemsThis standard provides the requirements for precision cleaning and testing of oxygen or oxygen-enriched systems and components; oxygen generating plants including nitrogen, hydrogen, and demineralized water support systems and components; and helium, helium-oxygen, and hydrogen life support systems and components. Each activity will implement the applicable requirements of this document through a locally prepared and approved procedure. Activities subject to additional quality assurance requirements such as NAVSEA SS800-AG-MAN-010/P-9290 or NAVSEA SS521-AA-MAN-010 will obtain procedure approval from the applicable certifying activity.

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MIL-STD-1330D(SH)

w/ Change 1

TABLE V. Hydrostatic testing. Continued.

Attribute

Requirement

Special notes

1. Hydrostatic testing with a gas (helium or nitrogen) is allowed with local engineering approval. Hydrostatic testing with a gas is extremely dangerous. Appropriate safety precautions are the responsibility of the performing activity.

2. Hydrostatic testing of Department of Transportation (DOT) certified steel flasks shall be in accordance with CGA C-1. Hydrostatic testing of DOT certified aluminum flasks shall be in accordance with CGA C-1 and CGA C-6.1. Hydrostatic testing of DOT certified fiber reinforced aluminum flasks shall be in accordance with CGA C-1 and CGA C-6.2, except prior to measuring permanent expansion, the flask shall rest for not less than 60 seconds. Hydrostatic testing of MIL-F-22606 flasks shall be in accordance with NAVSEA 0902-LP-

018-2010 and NAVSEA S9086-SY-STM-010/CH-551. Flasks tested with water shall be dried as specified in 5.3.4.

3. Hydrostatic test requirements may be replaced with added inspections in accordance with NAVSEA S9086-RK-STM-010/CH-505 for welded or brazed joints associated with piping system modifications or repairs with local engineering approval. Welded joints shall be cleaned as specified in this standard, or cleanliness shall be maintained as specified in 5.11. Brazed joints shall be cleaned as specified in 4.8.

TABLE VI. Joint tightness testing.

Attribute	Requirement
Applicability	New or repaired pipe and components, including flasks, shall be joint tightness tested. Repairs are any work/rework which could affect the pressure containing ability of the item such as welding, brazing, replacement of software, or disturbance of mechanical joints.
When accomplished	Joint tightness testing is normally accomplished after component or system cleaning and prior to operational testing.
Test fluid	The test fluid is as specified in 4.6 or 4.7.
Test pressure	The test pressure is 100 percent of system maximum operating pressure.
Test duration	Shop testing shall be for not less than 5 minutes. Testing conducted in the as-installed configuration shall be not less than 15 minutes soak time plus sufficient time for inspection.
Acceptance criteria	Testing with nitrogen or oxygen: No leakage is allowed while monitoring accessible joints for leakage using methods such as full immersion or using leak detection solution in accordance with MIL-PRF-25567, or equal. Leakage is identified by individual bubbles forming which are visible with the naked eye. Testing with helium: The maximum allowable leakage rate is 0.6 standard cubic centimeters per minute (sccm) past valve stem seals while monitoring accessible joints for leakage using methods such as full immersion or using leak detection solution in accordance with MIL-PRF-25567, or equal. Leakage is identified by the formation of individual bubbles visible under white light inspection. An electronic leak detector, such as USON, may be used at the beginning and end of the joint tightness test. Testing with water: No leakage is allowed.