| ACRONYM | FULL WORDING | COMMENT |
| SATAFEX / SPMX | Saturday After noon (P.M.) Excepted | |
| SATPMSHEX | Saturday P.M., Sundays and Holidays Excepted | |
| SB / SBBE | Safe Berth (at Both Ends) | The legal definition exists in the " Eastern City " case, fairly well reproduced in the Charterparty Laytime Definitions |
| SBM | Single Buoy Mooring | Used in tanker trade only |
| SBM | Soyabean meal | |
| SBT | Segregated Ballast Tank | Used in tanker trade only |
| SF | Stowage Factor | Actual volume occupied by one ton of the cargo in the holds of the considered vessel.Ex. SF = 50 Cbf /Ton Remark : often differs definitely from the density of the cargo measured ashore due to a " stowage loss ". |
| SHEX | Sundays and Holidays Excepted | |
| SHINC | Sundays and Holidays Included | |
| SOF | Statement Of Facts | To be fully valid SOF must be signed by the Master, the Agent and the Charterers or their representatives |
| SOLAS | Safety Of Life At Sea Convention | See IMO |
| SP | Safe Port | See SB |
| SS | Steamship | |
| SSHEX | Saturdays Sundays and Holidays excepted | |
| SSW | Summer (free board in) Salt Water | Used in conjunction with the description of the deadweight of the vessel |
| ST | Self-Trimmer, Self-Trimming, Self-Trimming Bulk Carrier | Describe a Vessel with restricted spaces outside the square of hatches (requires no trimming of the cargo once dumped in the holds). |
| ST, OST | Spring Tide, Ordinary Spring Tide | LWOST describes the draft available at low tide in an average spring water. Important to know for tidal ports |
| STBC | Self-Trimming Bulk Carrier | The same with octogonal shaped holds (upper and lower side tanks) |
| STEM, SUBSTEM | Subject to Enough Merchandise (doubtful origin) better : Subject to Shippers’ agreement on quantity and dates of shipment | |
| SUB | Subject ... | SUBDETAILS requires a mutual agreement on all minor clauses in the contract |
| SUB | Substitute (Vessel) | Ex. : MV " X " OR SUB - Ambiguous expression which requires clarification. If not, is it an option or an obligation? |
| SW | Salt Water | Not a fixed density - In general about 1,025 |
| SWAD | (Maximum) Salt Water Arrival Draft | Applies to the vessel |
