ISO 8862-1987 PDF

Full title and description

Air-conditioning and ventilation of machinery control-rooms on board ships — Design conditions and basis of calculations. This International Standard gives design conditions and calculation bases for the ventilation and air‑conditioning of machinery control-rooms on seagoing merchant ships; an annex provides guidance and good practice for system design.

Abstract

ISO 8862:1987 specifies recommended environmental design conditions and the basis for calculations used when designing ventilation and air‑conditioning systems for machinery control-rooms aboard seagoing merchant ships (excluding extremely cold or hot climate extremes). The document is primarily a guidance standard and includes an annex with practical design details and good practices for ventilation and air‑conditioning arrangements.

General information

• Status: Withdrawn / superseded (see Related standards).
• Publication date: Edition 1 — 1987 (published March 1987).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 47.020.90 (Marine ventilation, air conditioning and heating systems).
• Edition / version: Edition 1 (1987).
• Number of pages: 2 (short advisory standard with annex material summarized).

Key bibliographic and lifecycle details above are drawn from ISO's record for the standard and national catalogues.

Scope

The standard applies to the design of air‑conditioning and ventilation systems for machinery control‑rooms on board seagoing merchant ships, covering recommended internal design conditions, assumptions for heat gains and losses, air exchange and circulation principles, and the calculation bases used to size systems and select components. It excludes special cases encountered in extremely cold or extremely hot climates; however, applicable parts may be used for similar enclosed spaces.

Key topics and requirements

• Specified internal design conditions for machinery control-rooms (temperature and humidity guidance for comfort and equipment performance).
• Basis of calculations for ventilation and air‑conditioning loads (accounting for machinery heat gains, solar gains where relevant, and infiltration).
• Recommendations for air circulation, supply and extract arrangements to maintain acceptable working conditions and equipment operating temperatures.
• Guidance annex with good-practice design details specific to machinery control-room layouts and system arrangement.
• Limitation of applicability — primarily for merchant ships under normal climatic conditions; special climates require adapted criteria.

These topics are intended as guidance rather than prescriptive mandatory rules; designers are expected to apply professional judgement and reference national/regulatory requirements and classification society rules where applicable.

Typical use and users

This standard was intended for naval architects, ship HVAC (air‑conditioning and ventilation) designers, marine engineers, shipyards, classification societies, and maritime regulatory bodies involved in specifying and reviewing the ventilation and air‑conditioning arrangements of machinery control-rooms. Even though ISO 8862:1987 has been withdrawn, its content may still be consulted by engineers as historical guidance and as a reference point when comparing older ships or legacy documentation.

Related standards

ISO 8862:1987 has been superseded and the topic is now covered by ISO 7547:2022 (Ships and marine technology — Air‑conditioning and ventilation of accommodation spaces and other enclosed compartments on board ships — Design conditions and basis of calculations). Other related ISO standards in the same subject area include earlier/parallel documents addressing wheelhouse and engine-room ventilation (for example, ISO 8864 and ISO 8861 series) and national/regional marine HVAC norms and classification society rules. Users should adopt ISO 7547:2022 or the applicable current regional/classification requirements for new designs.

Keywords

machinery control-room, ship ventilation, marine air-conditioning, design conditions, ventilation calculations, HVAC, shipboard environmental control, ISO 8862, marine engineering, ship design

FAQ

Q: What is this standard?

A: ISO 8862:1987 is an International Standard that provided guidance on air‑conditioning and ventilation design conditions and calculation bases for machinery control-rooms on seagoing merchant ships.

Q: What does it cover?

A: It covers recommended environmental design conditions (temperature, humidity), assumptions for calculating ventilation and air‑conditioning loads, and good-practice guidance for system layout and air circulation for machinery control-rooms; it excludes extreme climatic conditions.

Q: Who typically uses it?

A: Naval architects, marine HVAC designers, shipyards, classification societies and marine engineers used the standard as guidance when specifying or reviewing machinery control-room ventilation and air‑conditioning arrangements.

Q: Is it current or superseded?

A: ISO 8862:1987 has been withdrawn and superseded by ISO 7547:2022. For current design work and regulatory compliance, use ISO 7547:2022 or the relevant up‑to‑date classification society rules.

Q: Is it part of a series?

A: It is part of ISO’s suite of shipboard ventilation and air‑conditioning guidance documents; related ISO items address wheelhouse and engine‑room ventilation and other enclosed shipboard spaces. Designers should consult the full set of current ISO ship‑ventilation standards and applicable regional/classification requirements.

Q: What are the key keywords?

A: Machinery control-room, ship HVAC, ventilation, air‑conditioning, design conditions, ventilation calculations, marine engineering, ISO 8862, shipboard environmental control.