| Test Date | Test specimen | No. | Weight before the test (g) | Weight after the test (g) (12 wks later) | Weight loss ratio (%) |
| 8.8 | Preservative-treated specimen of coniferous wood (mixed stump) | I-1 | 2.60 | 2.44 | 5.96 |
| I-2 | 2.06 | 1.19 | 41.89 | ||
| I-3 | 2.06 | 1.60 | 21.94 | ||
| II-4 | 2.72 | 2.44 | 10.25 | ||
| II-5 | 2.65 | 2.21 | 16.56 | ||
| II-6 | 2.68 | 2.59 | 3.35 | ||
| III-7 | 2.64 | 2.23 | 15.37 | ||
| III-8 | 2.50 | 2.09 | 16.2 | ||
| III-9 | 2.56 | 2.11 | 17.5 | ||
| IV-10 | 2.57 | 2.17 | 15.56 | ||
| IV-11 | 2.57 | 2.23 | 13.15 | ||
| IV-12 | 2.62 | 2.17 | 16.87 |