Overview
EN ISO 19019:2005 (ISO 19019:2005) - "Sea‑going vessels and marine technology - Instructions for planning, carrying out and reporting sea trials" - provides basic, practical instructions to achieve a unified format for sea trials. The standard is intended for mechanically propelled sea‑going vessels (excluding submarines) and gives guidance on planning, execution, data recording and reporting so vessels meet contractual, classification and flag authority requirements.
Key topics and technical requirements
- Scope and applicability: Guidance for ship owners, designers, shipbuilders and trial crew; applies to global sea trials and selected system trials for mechanically propelled vessels (not submarines).
- Planning: Actions required before trials, sequence of trials, safety precautions, pre‑trial and final meetings.
- Propulsion trials: Speed trials, fuel‑consumption trials, endurance and astern trials - including recommendations for data recording and uncertainty analysis (e.g., continuous recording and example sampling frequency of 1 Hz).
- Control systems: Tests and acceptance criteria for steering gear, thrusters and fin stabilizers.
- Manoeuvring trials: Purpose, trial specifications, execution, instrumentation and data reporting for turning, stopping and zig‑zag type tests.
- Miscellaneous tests: Anchor‑handling, structural vibration and noise level tests.
- Reporting and annexes: Trial acceptance documents, trial sequences, data sheets and templates (normative and informative annexes) to standardize reporting.
- Responsibility: Shipbuilder responsibility for planning, conducting and evaluating trials; emphasis on safety, collision avoidance and avoiding interruptions.
Applications and who uses it
EN ISO 19019:2005 is used by:
- Ship owners and operators verifying contractual performance and fuel economy.
- Ship designers and naval architects planning performance validation.
- Shipbuilders and yards organizing and executing sea trials.
- Trial crews and test engineers for instrumentation, data acquisition and reporting.
- Classification societies and flag administrations referencing consistent trial procedures during acceptance.
Practical applications include speed and fuel‑efficiency verification, propulsion and steering acceptance, manoeuvring certification, vibration and noise assessments, and anchor‑handling validation.
Related standards
Relevant normative references cited in EN ISO 19019:2005 include:
- ISO 2923 (noise measurement on board vessels)
- ISO 3046 (engine performance standards)
- ISO 15016 (assessment of speed and power performance)
- ISO vibration standards (ISO 4867, ISO 4868, ISO 6954)
- IMO and SOLAS references for ship safety and noise regulations.
Keywords: EN ISO 19019:2005, ISO 19019, sea trials, ship sea trials, propulsion trials, manoeuvring trials, steering gear tests, stabilizer trials, vibration and noise tests, sea trial planning.