Standard Test Method for Instrumental Measurement of Distinctness-of-Image (DOI) Gloss of Coated Surfaces

Importancia y uso:

4.1 An important aspect of the appearance of glossy coating surfaces is the distinctness (clarity) of images reflected by them. The values obtained in this measuring procedure correlate well with visual ratings for DOI (image clarity).

4.2 Although Test Methods D523 and D4039 are useful in characterizing some aspects of glossy appearance, they do not provide satisfactory ratings for DOI (image clarity).

4.3 The measurement conditions given conform to the conditions specified in Test Methods E430.

4.4 The measurement conditions given in this test method conform to the conditions specified in ISO 10216.

4.5 The scale values obtained with the measuring procedures of this test method range from 0 to 100 with a value of 100 representing perfect DOI (image clarity).

4.6 The DOI (image clarity) scale value does not, of itself, indicate any specific cause for reduction in reflected image sharpness. Surface irregularities such as haze, orange peel, and wrinkle, when present, may be cited as causes for reduction of image sharpness.

Subcomité:

E12.03

Referida por:

D3451-24, D7270-07R21, D5382-02R17, D6486-23

Volúmen:

06.01

Número ICS:

25.220.01 (Surface treatment and coating in general)

Palabras clave:

distinctness of image; DOI; gloss; high-gloss surfaces; image clarity;