Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Priority to NL7108999ApriorityCriticalpatent/NL7108999A/en
Publication of NL7108999ApublicationCriticalpatent/NL7108999A/en
G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
G01N21/84—Systems specially adapted for particular applications
G01N21/88—Investigating the presence of flaws or contamination
G01N21/91—Investigating the presence of flaws or contamination using penetration of dyes, e.g. fluorescent ink
Landscapes
Physics & Mathematics
(AREA)
Health & Medical Sciences
(AREA)
Life Sciences & Earth Sciences
(AREA)
Chemical & Material Sciences
(AREA)
Analytical Chemistry
(AREA)
Biochemistry
(AREA)
General Health & Medical Sciences
(AREA)
General Physics & Mathematics
(AREA)
Immunology
(AREA)
Pathology
(AREA)
Investigating Materials By The Use Of Optical Means Adapted For Particular Applications
(AREA)
Abstract
Developer compsn. for use in an inspection penetrant process comprises ethoxylated polyoxypropylene glycol (fusible wax) 2 lbs. sodium benzoate 5 lbs., wetting agent (ethoxylated ether alcohol urea complex) 28 g., rust inhibitor (sodium chromate) 17 g. The ingredients are dissolved in sufficient water to give conc. of fusible was of 0.1 - 10% wt. In use the developer solidifies and prevents bleaching and migration of the indications.
NL7108999A1971-06-291971-06-29Developers for inspection penetrants contg fusible waxes
NL7108999A
(en)
Procedure for the cold deformation of welded tubes with the use of a emulsifying lubricant-refrigerant in water. (Machine-translation by Google Translate, not legally binding)
Procedure for obtaining cleaning agents to eliminate oxides from rusty surfaces of metal articles. (Machine-translation by Google Translate, not legally binding)