[国外标准] JIS K0071-4-1998 Título Testing methods for colour of chemical products -- Part 4 ASTM colour
[国外标准] JIS K0071-2-1998 Título Testing methods for colour of chemical products -- Part 2 Gardner colour sca
[国外标准] JIS K0071-1-1998 Título Testing methods for colour of chemical products -- Part 1 Estimation of colo