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.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30 - 31 - 32 - 33 - 34 - 35 - 36 - 37 - 38 - 39 - 40 - 41 - 42 - 43 - 44 - 45 - 46 - 47 - 48 - 49 - 50 - 51 - 52 - 53 - 54 - 55 - 56 - 57 - 58 - 59 - 60 - 61 - 62 - 63 - 64 - 65 - 66 - 67 - 68 - 69 - 70 - 71 - 72 - 73 - 74 - 75 - 76 - 77 - 78 - 79 - 80 - 81 - 82 - 83 - 84 - 85 - 86 - 87 - 88 - 89 - 90

MIL-STD-1330D(SH)

w/ Change 1

5.13.2 Hydrocarbon and NVR analysis methods.

5.13.2.1 Applicability. All aqueous cleaning processes using NOC as a final cleaner shall check for the presence of excessive foam using the shake test specified in 5.13.2.2. Depending on the final cleaner, one of the analytical methods specified in Table X shall be used to quantitatively determine the concentration of hydrocarbons (oil and grease) or non-volatile residue (NVR) in the final cleaner. Exceptions are nitrogen-oxygen life support piping and components wetted by not greater than 50 percent by volume oxygen and final cleaned with NOC, and demineralized water system components final cleaned with NOC. For these items, the qualitative clarity inspection of NOC specified in 5.13.2.9 may be substituted for the quantitative inspection specified in Table X.

TABLE X. Hydrocarbon and NVR analysis methods.

5.13.2.2 Shake test. A half-full capped sample container of not less than 250 mL shall be vigorously agitated for not less than 5 seconds, then allowed to stand undisturbed for 5 minutes. Any evidence of bubbles remaining on the surface shall be cause for rejection. The shake test is useful in detecting the presence of some soluble organic contaminants such as hydrocarbon surfactants in low foaming inorganic solutions such as NOC. As an example, NOC with only 5 milligrams per liter (mg/L) NID will develop a stable foam visible after 30 minutes. The presence of foam is often the result of carry-over from a pre-clean step. However, the shake test is used only to determine the presence of organic or particulate contamination. A shake test will not detect insoluble organic contaminants such

as oil or grease, and, therefore, shall not be used to establish the absence of organic contaminants.

5.13.2.3 Non-volatile residue in NOC. The concentration of NVR in NOC shall be determined as specified in

Appendix B.

5.13.2.4 Solvent extraction of aqueous cleaners. As specified in Appendix C, this method serially extracts a homogenized sample of TSP solution or NOC with three 30 mL or 160 mL volumes of CFC-113 or HCFC-225, as applicable, and subsequently dilutes the extract to either 100 mL or 500 mL. The extract is then analyzed as specified in 5.13.2.5 or 5.13.2.8.