Heroux Devtek (formerly APPH)

This approval body does not grant approvals. Approval to do work to any APPH spec. must be obtained from the customer and recorded. Examples of relevant specs. include those listed below.
KLA 361 Moly Disulphide Spray
KLA 369 Etch Primer BS2x32

KLA 370 Passivation (not 440C material)

KLA 805 Local alocrom

KLA 824 Paint

KLA 834 Magnetic Flaw Detect – NB: use ASTME1444 except 1200uw/cm2 and accept standards

NB: Cannot work to KLA881 on aluminium alloys as need pre-etch
KLA 844 Anodising – MANDATORY ALOCROM OF JIG MARKS
KLA 850 Epoxy Paint Scheme

KLA 867 Cadmium Plate

KLA 881 Penetrant Flaw Detect (not suitable for aluminium components due to pre-penetrant, etc)

We use ASTME instead in accordance with MDOI-039

BS2808 : 1997 Anodising of Titanium (HAL LCH parts only)
NOTE : Nadcap waived for this process