MIL-STD-1622 Cleaning Of Shipboard Compressed Air SystemsThis standard provides the requirements for cleaning of compressed air systems and components.

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

MIL-STD-1622B(SH)

pressure switches are as specified in MIL-G-18997. For critical applications, the requirements shall be as directed (see 6.3) using a NAVSEA approved halogenated solvent. Instruments and gauges should be calibrated in place by

a comparative calibration procedure specified in NAVSEA 0987-LP-022-3010 except air as specified in 4.5.2 may be used.

5.6 System aqueous cleaning process.

5.6.1 Applicability. The system aqueous cleaning process defined by Table IV is applicable to all compatible systems. It may be used for cryogenic systems within the boundaries specified in 1.2.2 provided the aqueous system cleaning process can be successfully accomplished.

Table IV. Aqueous system cleaning matrix.

Requirement	General Applications		Critical Applications
Requirement	Other Cleaner	NOC or TSP	NOC	TSP
Material and equipment	5.6.2	5.6.2	5.6.2	5.6.2
System preparation	5.6.3	5.6.3	5.6.3	5.6.3
Leak-check	5.6.4	5.6.4	5.6.4	5.6.4
Preflush	5.6.5	5.6.5	5.6.5	5.6.5
Hydrostatic test	5.6.6	5.6.6	5.6.6	5.6.6
Final flushing/ cleaning	5.6.7	5.6.7(a), (b), and (c)	5.6.7(a),(b), (c),(d), and (e)	5.6.7(a),(b), (c),(d), and (f)
Rinsing	5.6.8	5.6.8(a), (b),(c),(d) and (f)	5.6.8(a), (b), (c),(e), and (f)	5.6.8(a),(b), (d),(e), and (f)
Drying	5.6.9	5.6.9	5.6.9	5.6.9

5.6.2 Material and equipment.

(a)For general applications, a supply of NOC or TSP as specified in

4.2, or other low foaming cleaner selected as specified in 4.3.

For critical applications, a supply of NOC or TSP as specified in

4.2.

(b)A supply of rinse water.

(c)A supply of air or nitrogen.

(d)A flushing rig consisting of tanks, pumps, piping, measuring

devices for pressure, temperature, and flow, hoses, filters, and

strainers. All items shall be compatible with the cleaner and

capable of attaining the pressure, temperature, flow rates, and

filtering required by this standard.

(e)Equipment to perform the applicable analyses of 5.14. This

includes clean containers of no less than twice the sample volume

to obtain the required samples.