Toronto Site

PPS Revision Notice #2018-012

PPS 23.02, Issue 35 - Protective Treatment and Decorative
Summary of Changes:

Specified detail for finish code A4.

Specified that A5 finish code is withdrawn and where A5 is specified on the engineering drawing, use A1.

For finish code F16, deleted Mastinox 6856K (chromated)

Added material specification, DHMS C4.11 for finish code F32.

Specified detail for finish code F46.

PPS 32.03, Issue 26 - Chromic Acid Anodizing (A1)
Summary of Changes:

Deleted MIL-DTL-5541 from Reference section.

Clarified that it is only acceptable to use CAA procedure specified in BAPS 160-010 as an alternate approve process to PPS 32.03 and not any other process even as authorized through BAPS 160-010.

Deleted option of dilute chromate sealing bath and sodium dichromate sealing bath. Specified use of only the hot de-ionized water sealing bath.

Added to rinse off CAA bath solution prior to visual inspection of parts.

Wherever air is utilized (e.g., drying of parts), specified compressed air meeting BAERD GEN-023.

Clarified protection of parts (i.e., wrap in neutral Kraft paper and seal in polyethylene plastic bags).

Revised test specimen description for the following testing (deleted MIL reference): Coating weight; Corrosion Resistance; and Paint Adhesion.

Added new section, Disposal of Chemical Wastes.

PPS 33.01, Issue 19 - Cadmium Plating (E1)
Summary of Changes:

Specified two types of thickness gauge depending on the base material to be measured.

Specified this PPS is categorized as a Controlled Critical Process.

Specified a standard and extended bright dip solution frequency testing.

Specified adhesion testing procedure to the whole adhesion testing section (re: Table II).

Revised personnel requirements wording.

This revision notice lists brief summaries of technical changes introduced for each of the revised PPS's. Please note that these summaries are not detailed and are intended only to assist in alerting users to changes which may affect them; refer to the applicable PPS for authorized, detailed procedure and requirements.

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