International Journal of Interdisciplinary Research
Table 9 Factors and levels in Box Behnken design with citric acid
From: Assessment of durable press performance of cotton finished with modified DMDHEU and citric acid
Coded factors | Independent factors | Factor levels | ||
|---|---|---|---|---|
−1 (low) | 0 (centre) | 1 (high) | ||
X1 | Citric acid conc. (gpl) | 50 | 60 | 70 |
X2 | SHP (%) ow CA | 60 | 70 | 80 |
X3 | Curing time (s) | 60 | 90 | 120 |