Research Article
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 |
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