This standard requires that white or light-colored paint with a tristimulus value Y exceeding 25 be applied to a specified hiding rate test paper or a colorless and transparent polyester film with a coating area of 20 m/L, and then In this case, the method for measuring the hiding power (by hiding rate measurement) of a coating film is specified, in which the tristimulus value Y of the coating film is measured on a specified black and white glass plate.
JIS K 5600-4-1:1999 history
2002JIS K 5600-4-1 ERRATUM 1:2002 Testing methods for paints -- Part 4: Visual characteristics of film -- Section 1: Hiding power (for light-coloured paints) (Erratum 1)
1999JIS K 5600-4-1:1999 Testing methods for paints -- Part 4: Visual characteristics of film -- Section 1: Hiding power (for light-coloured paints)