This standard specifies pictorial standards for indicating the degree of rust on paint films.
JIS K 5600-8-3:1999 history
2008JIS K 5600-8-3:2008 Testing methods for paints -- Part 8: Evaluation of degradation of paint coatings -- Section 3: Designation of degree of rusting
1999JIS K 5600-8-3:1999 Testing methods for paints -- Part 8: Evaluation of degradation of paint coatings -- Section 3: Designation of degree of rusting