NPFC - MIL-STD-1622
STANDARD PRACTICE FOR CLEANING OF SHIPBOARD COMPRESSED AIR SYSTEMS
|Publication Date:||15 November 2006|
This standard provides the requirements for cleaning of
compressed air systems and components. Each activity should
implement the applicable requirements of this document through a
locally prepared and approved procedure. Activities subject to
additional quality assurance requirements such as NAVSEA
This standard is applicable to all surface ships, submarines, and supporting shore base facilities which contain any of the following:
Compressed air systems and components. The cleanliness boundary
includes all material designed for and normally wetted by low,
medium, or high pressure air as specified in NAVSEA
Compressed gaseous and liquid nitrogen systems and components supporting or interfacing with services containing 25% or less oxygen. The cleanliness boundary includes all material designed for and normally wetted by compressed gaseous or liquid nitrogen. For all cases, if the system or component interfaces with an oxygen or oxygen-enriched system or component, including gaseous or liquid oxygen generating equipment, containing greater than 25% by volume oxygen during normal operation, it will be cleaned as specified in MIL-STD-1330.
Equipment which comes in contact with or is used to transfer any fluid from its source to a system or component within any of the boundaries defined in 1.2.1 and 1.2.2 when such interface is intended to maintain the cleanliness requirements specified herein.
Open ended applications, other than air supplying diver's life support, will use best commercial practice to remove loose scale, dust, grit, filings, oil, and grease. Open ended applications supplying air for diver's life support will be cleaned as specified herein.
This standard practice is for the cleaning of naval surface ship, submarine and diving compressed air systems. The cleaning processes specified herein are based on the processes in MIL-STD-1330.... View More
This standard practice is for the cleaning of naval surface ship, submarine and diving compressed air systems. The cleaning processes specified herein are based on the processes in MIL-STD-1330. The performance of the cleaning process specified herein can directly affect the safe operation of naval surface ship, submarine and diving compressed air systems. Nonconformance can result in the introduction or failure to remove toxic and flammable contaminants that can cause catastrophic equipment failure and personnel injury and death.View Less