(Finn Chamber, Patch Test IQ) test strips are applied vertically on the back, in parallel rows. With regard to the order of application of the standard battery tests, it is well codified at the present time.

The old implementing of patch testing are no longer in use today. These ancient terms, to ensure better penetration of allergens, include the site to test with sanding paper of glass, abrasion of the layer horny with a scalpel, true scarification forming a grid pattern more or less tight.