各国Ra系列值的对照表
各国Ra系列值的对照 (μm)
| ISO | 中国 | 英国 | 日本 | 波兰 | 奥地利 | 意大利 | 德国 | 法国 | 罗马尼亚 | 瑞士 | 澳大利亚 | 丹麦 | 捷克 | 美国 | 前苏联 |
| (0.008) | (0.008) | 0.008 | 0.006 | (0.008) | 0.006 | (0.008) | |||||||||
| (0.010) | (0.010) | 0.010 | (0.01) | 0.10 | (0.010) | ||||||||||
| 0.012 | 0.012 | 0.025 | 0.013 | 0.012 | 0.012 | (0.012) | 0.012 | 0.0125 | 0.012 | 0.012 | (0.012) | 0.012 | |||
| (0.016) | (0.016) | 0.016 | (0.016) | 0.016 | (0.016) | ||||||||||
| (0.020) | (0.020) | 0.020 | (0.02) | (0.020) | |||||||||||
| 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 |
| (0.032) | (0.032) | 0.032 | (0.032) | (0.032) | |||||||||||
| (0.040) | (0.040) | 0.040 | (0.04) | 0.04 | (0.04) | ||||||||||
| 0.050 | 0.050 | 0.05 | 0.05 | 0.050 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.050 | 0.050 | 0.05 | |
| (0.063) | (0.063) | 0.063 | (0.063) | 0.063 | (0.063) | ||||||||||
| (0.080) | (0.080) | 0.080 | (0.08) | (0.080) | |||||||||||
| 0.100 | 0.100 | 0.1 | 0.1 | 0.100 | 0.1 | 0.1 | 0.1 | 0.1 | 0.10 | 0.10 | 0.10 | 0.100 | 0.100 | 0.10 | 0.10 |
| (0.125) | (0.125) | 0.125 | (0.125) | (0.125) | |||||||||||
| (0.160) | (0.160) | 0.160 | (0.16) | 0.160 | (0.16) | ||||||||||
| 0.20 | 0.20 | 0.2 | 0.2 | 0.20 | 0.2 | 0.2 | 0.2 | 0.2 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | |
| (0.25) | (0.25) | 0.25 | (0.25) | 0.25 | (0.25) | ||||||||||
| (0.32) | (0.32) | 0.32 | (0.32) | (0.32) | |||||||||||
| 0.40 | 0.40 | 0.4 | 0.4 | 0.40 | 0.4 | 0.4 | 0.4 | 0.4 | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 |
| (0.50) | (0.50) | 0.50 | (0.5) | (0.50) | |||||||||||
| (0.63) | (0.63) | 0.63 | (0.63) | 0.63 | (0.63) | ||||||||||
| 0.80 | 0.80 | 0.8 | 0.8 | 0.80 | 0.8 | 0.8 | 0.8 | 0.8 | 0.80 | 0.80 | 0.80 | 0.80 | 0.80 | 0.80 | |
| (1.00) | (1.00) | 1.00 | (1) | 1.00 | (1.00) | ||||||||||
| (1.25) | (1.25) | 1.25 | (1.25) | (1.25) | |||||||||||
| 1.60 | 1.60 | 1.6 | 1.6 | 1.60 | 1.6 | 1.6 | 1.6 | 1.6 | 1.60 | 1.60 | 1.60 | 1.60 | 1.6 | 1.60 | 1.60 |
| (2.0) | (2.0) | 2.0 | (2) | (2.0) | |||||||||||
| (2.5) | (2.5) | 2.5 | (2.5) | 2.5 | (2.5) | ||||||||||
| 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | |
| (4.0) | (4.0) | 4.0 | (4) | 4.0 | (4.0) | ||||||||||
| (5.0) | (5.0) | 5.0 | (5) | (5.0) | |||||||||||
| 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 |
| (8.0) | (8.0) | 8.0 | (8) | (8.0) | |||||||||||
| (10.0) | (10.0) | 10.0 | (10) | 10 | (10.0) | ||||||||||
| 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | |
| (16.0) | (16.0) | 16.0 | (16) | 16 | (16) | ||||||||||
| (20) | (20) | 20 | (20) | (20) | |||||||||||
| 25 | 25 | 25 | 25 | 25 | 25 | (25) | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| (32) | (32) | 32 | (32) | (32) | |||||||||||
| (40) | (40) | 40 | (40) | 40 | (40) | ||||||||||
| 50 | 50 | 50 | 50 | 50 | 50 | (50) | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | |
| (63) | (63) | 63 | (63) | 63 | (63) | ||||||||||
| (80) | (80) | 80 | (80) | (80) | |||||||||||
| 100 | 100 | 100 | 100 | 100 | 100 | (100) | 100 | 100 | 100 | 100 | 100 | ||||
| (125) | 125 | (125) | |||||||||||||
| (160) | 160 | (160) | |||||||||||||
| 200 | 200 | 200 | 200 | (200) | 200 | ||||||||||
| (250) | 250 | (250) |