Effect of Nano-CaCO₃ and Talc on Property and Weathering Performance of PP Composites

Table 3

Sensitive expressions of color difference by N.B.S Unit 6.0.

	Sensitive expressions of color difference
0.0–0.5	Trace
0.5–1.5	Slight
1.5–3.0	Noticeable
3.0–6.0	Appreciable
6.0–12.0	Much
12.0–d	Very much