ISO 8864-1987 PDF

Full title and description

Air-conditioning and ventilation of wheelhouse on board ships — Design conditions and basis of calculations. This International Standard specifies recommended design conditions and the basic calculation methods used when sizing and specifying air‑conditioning and ventilation systems for a ship's wheelhouse (bridge) environment.

Abstract

ISO 8864:1987 provides design conditions and the basis for calculations for air‑conditioning and ventilation of the wheelhouse on board seagoing ships. It applies to normal operating environments and excludes the extremely cold or extremely hot climates defined outside the standard’s stated limits. The 1987 edition has since been withdrawn and the subject matter incorporated into a later consolidated document covering accommodation and other enclosed compartments.

General information

• Status: Withdrawn (replaced / consolidated into a later ISO publication).
• Publication date: March 1987 (Edition 1; publication recorded in March 1987 — catalog listings give 11 March 1987 as the publication date).
• 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.

Scope

The standard sets out recommended indoor design conditions and the basic methods of calculation to be used when designing wheelhouse air‑conditioning and ventilation systems on board ships. It is intended for normal operating conditions and explicitly excludes extremes of climate beyond the stated design ranges. The content is focused on establishing thermal design conditions, ventilation rates and basic load calculation approaches appropriate for the wheelhouse environment.

Key topics and requirements

• Recommended wheelhouse design conditions (temperature and humidity design points for normal climates).
• Basis of calculations for sensible and latent heat gains affecting the wheelhouse (solar gains, equipment, occupants, infiltration and conduction).
• Ventilation requirements and recommended air‑change or fresh‑air rates for operational safety and crew comfort.
• Assumptions for occupancy, equipment heat loads and external environmental conditions used in sizing systems.
• Guidance on air distribution, extraction and localized ventilation considerations for visibility, defogging and equipment cooling.
• Performance and installation considerations to ensure wheelhouse habitability under normal sea conditions (not extreme climates).

Typical use and users

Naval architects, ship designers, marine HVAC engineers, classification societies, shipyards and consultants use this standard (or its successors) when specifying or verifying wheelhouse environmental systems. Operators and regulatory bodies reference the guidance when confirming that bridge environment design meets safety and comfort criteria.

Related standards

The content of ISO 8864:1987 has been superseded/ consolidated into 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 withdrawn standards from the same family include ISO 8862:1987, ISO 8863:1987 and ISO 9099:1987; the 2022 consolidation replaces and updates those earlier documents.

Keywords

wheelhouse, bridge, ship ventilation, ship air‑conditioning, marine HVAC, design conditions, thermal load calculations, ISO 8864, ISO 7547

FAQ

Q: What is this standard?

A: ISO 8864:1987 is an International Standard that provided design conditions and calculation bases for air‑conditioning and ventilation of the wheelhouse (bridge) on board ships. It was issued as Edition 1 in 1987.

Q: What does it cover?

A: It covers recommended wheelhouse environmental design conditions, the methods for calculating sensible and latent loads affecting the wheelhouse, and guidance on ventilation and air distribution for normal operating climates (excluding extreme cold or heat conditions).

Q: Who typically uses it?

A: Marine HVAC designers, shipbuilders, naval architects, classification societies and ship operators use the guidance when designing, specifying or assessing wheelhouse environmental control systems.

Q: Is it current or superseded?

A: ISO 8864:1987 has been withdrawn and its subject matter incorporated into a later consolidated standard. The relevant current standard is ISO 7547:2022, which updates and consolidates the earlier wheelhouse and accommodation ventilation standards. Users should refer to ISO 7547:2022 for the most up‑to‑date requirements.

Q: Is it part of a series?

A: Yes — ISO 8864:1987 belonged to a family of marine ventilation and air‑conditioning documents (for example ISO 8862, ISO 8863, ISO 9099) that were later consolidated into the ISO 7547 series; the consolidation was published as ISO 7547:2022.

Q: What are the key keywords?

A: Wheelhouse, bridge, ship HVAC, ventilation, air‑conditioning, thermal load calculation, marine accommodation design, ISO 8864, ISO 7547.