SOLAS requirements for totally enclosed lifeboats
By marinesafety
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According to ISO 799 and ISO 5489, rubber steps must strictly comply with specific material(high-quality black rubber), dimension(525×115×25mm), and construction rules(spaced between 330± 20mm) to maintain safety during evacuations.
Rubber Steps shall be ISO 799 and ISO 5489 and SOLAS-compliant steps with dimension roughly 525 × 115 × 30 mm, with non-skid grooved surface and high-strength steel frame lined, minimum test static load must be 8.8 kN and shall not break and crack.
Manufacture and repair Pilot ladder, embarkation ladder and rope ladder
| Type | Dutch | Japanese | Chinese | Standard | Chocks Integrated |
| Thickness | 80mm | 65mm | 45mm | 30mm | 50mm |
| Length | 525mm | 525mm | 525mm | 525mm | 525mm |
| Width | 115mm | 115mm | 115mm | 115mm | 115mm |
| Rubber Material | Natural rubber compound tread rubber | ||||
| Steel Frame Material | Cold-drawn steel #45 | ||||
| Rubber Tension | ≥10 MPa | ||||
| Static Load | ≥8.8 kN | ||||
| Weight (ref. only) | 5.2 kgs | 5.1 kgs | 3.4 kgs | 2.8 kgs | 3.7 kgs |