Standard Test Method for Hiding Power of Paints by Reflectometry

Importancia y uso:

5.1 This is a precise instrumental method giving results having an absolute physical significance without reference to a comparison paint. It should be used when maximum precision and minimum subjectivity are required, as in testing specification coatings or evaluating the hiding efficiency of pigments.

5.2 Hiding power Test Method D344 is visual instead of instrumental, and gives results that are relative to a material standard instead of absolute. It is less precise than Test Method D2805 but more closely aligned with practical painting procedures.

Subcomité:

D01.26

Referida por:

D5007-99R17, D0333-01R21, E0284-22, D6441-05R24, D2205-20, D6577-24, D7394-18R23, F0940-99R19E01, D6762-18R23, D3730-17R22, D2243-20, D6763-16R22, D5324-16R22, D5146-10R19

Volúmen:

06.01

Número ICS:

87.040 (Paints and varnishes)

Palabras clave:

contrast ratio; hiding power (of paints/coatings); scattering coefficient; spreading rate;