D-76B dissolves in water and applied to the inspection surface after the surface penetrant has been removed and before the part is dried. This form of developer is generally applied by immersion dip, flow on, or gentle air less spray, prior to the drying process. A uniform film will form during the drying. Most specifications do not allow the use of this form of developer with Method A (water washable) penetrants.
Specifications
AMS-2644E AMS-2647C
ASME B & PV code 07 sec V
ASTM E-165 ASTM E-1417
ISO-3452-2005
Typical Physical Properties
Form: white grainy powder
Density: 717.1 g/L
Flash Point: none
Fluorescence: none
Coating: thin white film
Removability with water: complete
Corrosion of aluminum: none
Corrosion of carbon steel: none
Corrosion of magnesium: none
Corrosion of stainless steel: none
Corrosion of titanium: none
Chloride content: < 1000 ppm (0.1%)
Sulfur content: < 1000 ppm (0.1%)
Chromate: none
Asbestos: none
Mercury: none
VOC’s: 0 g/L
Ozone layer depleting substances: none
PCB’s: none
