INDICATING PENETRANT FOR LUMINESCENT METHOD OF CAPILLARY DEFECTOSCOPY Russian patent published in 2000 - IPC

FIELD: automobile, aviation, cosmic and other industries. SUBSTANCE: indicating penetrant comprises luminophore Noriol A based on high-boiling fraction of Norilsk petroleum and indicating liquid carrier. Carrier comprises working liquid which is by- product of deep hydrogenation of kerosene fraction at flash temperature of 80-86 C. Ratios of components are as follows, wt %: luminophore Noriol A based on high- boiling fraction of Norilsk petroleum, 13-17; working liquid which is by-product of deep hydrogenation of kerosene fraction having flash temperature of 80-86 C. EFFECT: improved properties of the indicating penetrant.