MIL-STD-1622B(SH)
Corp., 6133 Baker Rd, Minnetonka, MN 55345, (612)935-4100, part number 1121; Millipore Corp., 80 Ashy Rd, Bedford, MA 01730, (617)275-9200, part number FHUP04700; or equal. Do not use bonded or laminated teflon filters as these filters contain hydrocarbons that will interfere with the analysis.
(b)A Fourier transform infrared (FTIR) spectrometer.
5.14.6.2 Swipe procedure.
(a)Using clean rubber or plastic gloves, swipe the area of interest by applying direct pressure to the center of the filter using only
one finger and draw for a distance of about 1 to 2 inches. Unlike
5.14.1.4, the swipe area is intended to be very small. In order
to detect contamination with the FTIR, it is very important to
locate the contamination in the center of the filter in a very
small area; preferably less than 10 mm diameter.
(b)Transfer the filter to a non-contaminating container such as a
clean plastic bag, or a clean glass or clear hard plastic
container. Record the date and the swipe location, and transport
to a laboratory for analysis.
5.14.6.3 FTIR procedure.
(a)Scan the center swiped area of the filter with the FTIR in absorbance mode with Res 4 and full aperture between 2600 cm-1 and
3400 cm-1.
(b)Review the spectrum for absorbance peaks occurring at the CH stretch region near 2930 cm-1. Absorbance peaks in this region that are 7 to 10 times higher than background for critical applications or 25 to 30 times higher than background for general
applications are discernable significant peaks that indicate the presence of hydrocarbon contamination requiring corrective action.
5.15 Personnel qualification and training.
5.15.1 Applicability. Piping systems and components to be certified clean shall be cleaned, assembled, tested (if cleanliness is being
maintained), and packaged by qualified personnel. The local facility shall be responsible for the training.
5.15.2 Content of training. The training should entail instruction on the local instruction that performs the cleaning and the hazards related to the operations. The training may be performed by any qualified personnel. Formal training and documentation is not required.
5.16 Packaging.
5.16.1 Applicability. Components cleaned internally and externally shall be packaged as specified in 5.16.2. Items cleaned internally only, such as hoses or piping assemblies, shall be packaged as specified in 5.16.3. Critical application items shall be identified as specified in 5.16.4.
5.16.2 Internally and externally cleaned components. Using film as specified in 5.16.3(b), packaging shall be accomplished as follows:
(a)Sealing of openings. When the item has openings leading to cleaned inner surfaces, the openings should be sealed as specified in
5.16.3.
(b)Intimate cushioning. Heavy items or items having threads, sharp
points, or edges which could damage the outer packaging shall be
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