D-70 is nonaqueous developer consisting of an absorbent powder suspended in a volatile solvent. It is applied after the surface penetrant has been removed and the inspection surface dried. The developer particles will settle out upon standing, requiring agitation prior to application. The solvent action of this type of developer helps bring the penetrant to the surface enhancing the detectability of the finest flaws. This type of developer uses flammable solvents and should not be used in confined spaces or near open flames or sparks.
Specifications
AMS-2644E, AMS-2647C, ASME B & PV code 07 sec V, ASTM E-165, ASTM E-1417, ISO-3452-2005 PMC-4357-7, RR CSS-232 RCC-M rev 2000, Snecma DMC0010 rev J
Typical Physical Properties
Form: milky liquid
Density: 851 g/L
Flash Point: 11.6¢ªC (54¢ªF)
Fluorescence: none
Dry Coating: smooth white
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: < 150 ppm (0.015%)
Fluoride content: < 50 ppm (0.005%)
Sodium content: < 350 ppm (0.035%)
Sulfur content: < 200 ppm (0.02%)
Mercury: none
VOC¡¯s: 710 g/L
Ozone layer depleting substances: none
PCB¡¯s: none
