Semnificație și utilizare
5.1 Acoperirile arhitecturale interioare sunt adesea decolorate de praf și alte materiale murdare. The test method covers the relative ease and completeness of removing specific dirt from such surfaces by scrubbing. The greater the ease of removing dirt with minimal membrane erosion, the longer the expected service life.

5.2 The results obtained by this test method are not necessarily relevant to all types of stains.

5.3 Semi-finish paints usually only require the use of non-abrasive cleaners to remove dirt well, while flat paints may require abrasive types.

Metoda de testare standard ASTM D3450-15 pentru lavabilitatea acoperirilor arhitecturale interioare

Etapa 1: Domeniul de aplicare
1.1 The test method covers the determination of the relative ease with which dirt discoloration is removed from the inner coating dry film by washing with an abrasive or non-abrasive cleaner.

1.2 This test method is limited to coatings with a CIE-Y reflectance of 60% or higher measured according to test method E1347.

1.3 Valorile exprimate în unități SI vor fi considerate standard. Valorile date în paranteze sunt doar pentru referință.

1.4 This standard is not intended to address all safety concerns associated with its use. Users of this standard are responsible for establishing appropriate safety and health measures prior to use and for determining the applicability of regulatory restrictions.

Metoda de testare standard ASTM D3450-15 pentru lavabilitatea acoperirilor arhitecturale interioare

2. Refer to the file
ASTM standard

D562 Test method for paint consistency using a Stormer viscometer to measure Krebs unit (KU) viscozitate

D1193 reagent water specification

D1210 Method for fineness test of dispersity of pigment-vehicle system with Hegman gauge

E70 Method for measuring pH value of aqueous solution with glass electrode

E1347 Test method for the measurement of color and color difference by tristimulus colorimetry