Este un test care se foloseste la vopsele, conform standardului 2409...
Se desenaza o grila, etc....
Se mai numeste si test de caroiaj, sau test de carotaj....
Iata is citate, linkuri, in engleza si romana:
http://www.docstoc.com/docs/31118781/13113-SENSO-FUNCTIONAL-...
by V Bornand - 2009 - Related articles
“The scratch test was based on the grid-pattern technique through a normalized card (NFT 30-038, ASTM D 3359, DIN 53 151, ISO 2409”
http://www.google.com/search?sourceid=navclient&ie=UTF-8&rlz...

“B.1.3 Each panel shall then be scribed according to BS EN ISO 2409 using a 2 mm spacing to form two grids each containing 25 squares. Tape shall be applied to, and removed from, one of each pair of grids as described in BS EN ISO 2409. Both the grids on each panel shall meet classification 0, i.e. no squares detached.
B.1.4 The panels shall then be exposed for 720 hours to neutral salt spray as described in BS EN ISO 9227, and then be rinsed in running tap water and allowed to dry for 24 hours at room temperature.
B.1.5 Tape shall then be applied and removed as described in BS EN IS 2409, to the grid on each panel not previously tested with tape. The result shall not rise above classification 2 after the adhesion test; i.e. up to 15% of the cross-cut area of paint may be lost by failure at the conversion coating.”
http://www.dstan.mod.uk/standards/defstans/03/018/00000400.p...

test aderenta vopselei la caroiaj
http://www.nhdp.ro/vopsea/ro/vopsitorie.php?id=2

“SR ISO 2409-94 Lacuri si vopsele. Încercarea la carotaj”
http://www.cnadnr.ro/docs/proceduri_derulare/79l-Documentati...
http://www.cjsm.ro/licitatii/lcj_2009_08_18_v2.pdf

“Aderenţa grilă de 1mm - 0 SR ISO 2409:2003
Elasticitate, min. mm min. 4 SR ISO 1520:2002”
http://www.emex.ro/Doc/Vopsea-Poliuretanica.pdf
De asemenea, termenul “aderenta grila”:
http://www.google.com/search?sourceid=navclient&ie=UTF-8&rlz...
Aderenţă grilă