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25 Dec

Penetrant Testing acc. to EN ISO 3452-1:2013

With the Penetrant Testing procedure (also known as DP test or dye penetrant inspection) you can quickly determine surface discontinuities on all iron metals and non-iron metals, some plastics and ceramic materials, glass, etc., provided that the discontinuities are open to the surfaces.

The liquid penetrant test method is used in the examination of welding seams, cast pieces, in shipbuilding, automobile and aircraft construction, apparatus and tank construction, etc.

Liquid penetrant inspection can be carried out with at daylight visible (red dye penetrant) and/or under UV-light fluorescent penetrants.

The PT method is charactestic for the fact that, contrary to the magnetic particle inspection (MT), defects or discontinuities can be proven also on not magnetizable materials.

Process description

The testing procedure consists of four separate processing steps, for which the following products are necessary:

  1. Precleaning (MR® Remover)
  2. Application of penetrant (MR® Penetrant)
  3. Excess penetrant removal (MR® Remover or water)
  4. Application of developer (MR® Developer, white)

High Temperature Cleaners, Penetrats and Developers are now available from the Germany based manufacturer; MR Chemie having below specifications.

MR® 68 H Penetrant red, for “high temperature” testing :

Product description:

  • Solvent removable, red penetrant
  • For “Hot”-Testing at temperatures between +50 and +200°C
  • Without AZO-dye-stuff.

Specifications

Sensitivity: 2
Approval:
ASME Code V, Art. 6
DIN EN ISO 3452-2
DIN EN ISO 3452-5
Temperature Range:
+50°C to +200°C
Carrier Media:
Oil
Delivery form:
Aerosol (500ml)
Bulk (1L, 5L)

MR® 70 H Developer, for “high temperature” testing :

Product description:

  • Special developer for „Hot”-testing at temperatures between +50 and +200 °C.
  • Hydrocarbon based carrier medium with special, modified solid components.

Specifications

Approval:
DIN EN ISO 3452-2
DIN EN ISO 3452-5
ASME Code V, Art. 6
Temperature Range:
+50°C to +200°C
Carrier Media:
Solvent
Delivery form:
Aerosol (500 ml)
Bulk (1 L, 5 L)

MR® 91 H Remover, for “high temperature” :

Product description:

  • Special remover for „Hot”-testing at temperature between +50 and + 200 °C.
  • Mixture of hydrocarbons with special additives.

Specifications

Approval:
ASME Code V, Art. 6
DIN EN ISO 3452-2
DIN EN ISO 3452-5
Temperature Range:
+50°C to +200°C
Carrier Media:
Oil
Delivery form:
Aerosol (500ml)
Bulk (5L)

Source: http://www.mr-chemie.in/