SIST EN 790:2002

Inland navigation vessels - Stairs with inclination angles of 45° to 60° - Requirements, types

1 Scope
This European Standard applies to stairs with inclination angles of 45° to 60°, having at least two steps, in working areas of inland navigation vessels.
It does not apply to stairs in passenger areas.
NOTE  Whenever possible, stairs specified in EN 13056 should be preferred.

Fahrzeuge der Binnenschiffahrt - Treppen mit Steigungswinkeln von 45° bis 60° - Anforderungen, Bauarten

1 Anwendungsbereich
Diese Europäische Norm gilt für Treppen mit Steigungswinkeln von 45° bis 60° und mindestens zwei Stufen in Arbeitsbereichen auf Fahrzeugen der Binnenschif-ffahrt.
Sie gilt nicht für Treppen in Fahrgastbereichen.
ANMERKUNG  Wenn immer möglich, sollten Treppen nach EN 13056 bevorzugt werden.

Bateaux de navigation intérieure - Escaliers a angles d'inclinaison entre 45° et 60° - Exigences, types

Cette norme européenne s'applique aux escaliers à angles d'inclinaison entre 45° et 60° et à au moins deux marches installés dans les zones de travail des bateaux de navigation intérieure. Elle ne s'applique pas aux escaliers prévus dans les parties de bateaux accessibles aux passagers. Pour les escaliers dans la zone extérieure, des angles d'inclinaison jusqu'à 55°, pour les escaliers dans la machinerie et les chambres de chauffe, des angles d'inclinaison jusqu'à 60° sont admissibles. NOTE:Dans la mesure du possible, il faudrait donner la préférence aux escaliers selon l'EN 13056.

Inland navigation vessels - Stairs with inclination angles of 45o to 60o - Requirements, types

General Information

• Status: Published
• Publication Date: 31-Dec-2001
• ICS: 47.020.10 - Hulls and their structure elements
• ICS: 47.060 - Inland navigation vessels
• Technical Committee: SS SPL - Technical Board for the general field
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jan-2002
• Due Date: 01-Jan-2002
• Completion Date: 01-Jan-2002
• Ref Project: EN 790:2001 - Inland navigation vessels - Stairs with inclination angles of 45° to 60° - Requirements, types

Relations

• Replaces: SIST EN 790:2000 - Inland navigation vessels - Stairs with inclination angles of 45° to 60° - Requirements, types
• Effective Date: 01-Jan-2002
• Refers: SIST EN 22768-1:2000 - General tolerances - Part 1: Tolerances for linear and angular dimensions without individual tolerance indications (ISO 2768-1:1989)
• Effective Date: 28-Jan-2026
• Refers: SIST EN 711:2024 - Inland navigation vessels - Railings for decks and side decks - Requirements, designs and types
• Effective Date: 28-Jan-2026
• Refers: SIST EN 13056:2002 - Inland navigation vessels - Stairs with inclination angles of 30° to < 45° - Requirements, types
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 13573:2009 - Inland navigation vessels - Anchoring, coupling, towing, hauling and mooring systems
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 13281:2023 - Inland navigation vessels - Safety requirements for walkways and working places
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 14504:2016 - Inland navigation vessels - Floating landing stages and floating bridges on inland waters - Requirements, tests
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 13281:2000 - Inland navigation vessels - Safety requirements for walkways and working places
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 14504:2024 - Inland navigation vessels - Floating landing stages and floating bridges on inland waters - Requirements, tests
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 13551:2004 - Inland navigation vessels - Vocabulary
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 1864:2008 - Inland navigation vessels - Wheelhouse - Ergonomic and safety requirements
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 14504:2009 - Inland navigation vessels - Floating landing stages - Requirements, tests
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 14504:2019 - Inland navigation vessels - Floating landing stages and floating bridges on inland waters - Requirements, tests
• Effective Date: 28-Jan-2026

Overview

SIST EN 790:2002 is a European Standard developed by CEN that specifies safety, design, and dimensional requirements for stairs with inclination angles of 45° to 60° used in the working areas of inland navigation vessels. This standard focuses strictly on stairs with at least two steps in professional or crew zones and does not apply to stairs located in passenger areas. The document ensures that stairs provide safe, reliable access within key operating sections of a vessel and covers types, required dimensions, surface characteristics, handrails/railings, headroom, strength, and fire resistance.

Note: For less steep stairs (30° to <45°), EN 13056 should be used in preference where possible.

Key Topics

SIST EN 790:2002 addresses several important areas to ensure compliance and safety on inland navigation vessels:

• Inclination Angles: Applies to stairs installed at angles between 45° and 60°, ensuring accessibility and safety within confined vessel working spaces.

• Dimensional Requirements: Dictates minimum and maximum measurements for step depth, stair breadth, space between steps, and handrail height to promote uniformity and safety.

• Safety Features:

  • Slip-resistant Treads: Steps and landings must have non-slip surfaces to reduce the risk of falls.
  • Handrails and Railings: Handholds are required for stairs with up to three steps; stairs with more than three steps must have railings or handrails on both sides, with intermediate rails where appropriate.
  • Headroom: Specifies a minimum headroom to prevent injury.
  • Strength and Load Requirements: Stairs, platforms, and handrails must withstand prescribed loads without deformation or damage.
  • Fire Resistance: Stairs are required to be constructed from non-combustible material, such as steel.

• Landings and Platforms: Landings at the top and bottom of stairs must meet specified size and safety requirements, including railing installation according to EN 711.

• Manufacturer’s Declaration: Manufacturers must provide a declaration of conformity to SIST EN 790:2002 for any stair supplied.

Applications

SIST EN 790:2002 is critically important for:

• Shipbuilders, designers, and engineers who are responsible for the construction and outfitting of working areas on inland navigation vessels.
• Quality assurance and safety inspectors enforcing the safe installation and maintenance of stairs aboard cargo, service, and technical vessels operating on rivers, canals, and other inland waterways.
• Operators and crew who rely on compliant stair installations to ensure safe movement between decks and different workspaces, particularly in areas like machinery rooms, decks, and control spaces.
• Manufacturers of marine stair components seeking to ensure products meet European statutory and safety requirements for inland waterway vessels.

Related Standards

Professionals referencing SIST EN 790:2002 should also consider the following European standards for optimal safety and compliance:

• EN 13056: Inland navigation vessels – Stairs with inclination angles of 30° to <45° – Requirements, types
• EN 711: Inland navigation vessels – Railings for decks – Requirements, types
• EN 22768-1 (ISO 2768-1): General tolerances for linear and angular dimensions
• European Council Directive 82/714/EEC: Technical requirements for inland waterway vessels

By adhering to SIST EN 790:2002, stakeholders ensure that stairs in working areas of inland navigation vessels conform to the latest safety and engineering best practices, promoting greater operability and reducing workplace risks.

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2002
1DGRPHãþD
SIST EN 790:2000
Inland navigation vessels - Stairs with inclination angles of 45o to 60o -
Requirements, types
Inland navigation vessels - Stairs with inclination angles of 45° to 60° - Requirements,
types
Fahrzeuge der Binnenschiffahrt - Treppen mit Steigungswinkeln von 45° bis 60° -
Anforderungen, Bauarten
Bateaux de navigation intérieure - Escaliers a angles d'inclinaison entre 45° et 60° -
Exigences, types
Ta slovenski standard je istoveten z: EN 790:2001
ICS:
47.020.10 Ladijski trupi in njihovi Hulls and their structure
konstrukcijski elementi elements
47.060 -H]HUVNDLQUHþQDSORYLOD Inland navigation vessels
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 790
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2001
ICS 47.020.10; 47.060 Supersedes EN 790:1994
English version
Inland navigation vessels - Stairs with inclination angles of 45°
to 60° - Requirements, types
Bateaux de navigation intérieure - Escaliers à angles Fahrzeuge der Binnenschiffahrt - Treppen mit
d'inclinaison entre 45° et 60° - Exigences, types Steigungswinkeln von 45° bis 60° - Anforderungen,
Bauarten
This European Standard was approved by CEN on 8 March 2001.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 790:2001 E
worldwide for CEN national Members.

Page 2
Contents
Page
Foreword . 3
1 Scope. 4
2 Normative references. 4
3 Terms and definitions . 4
4 Safety requirements. 5
4.1 Design. 5
4.2 Dimensions. 6
4.3 Space between steps . 8
4.4 Deviation for stairs for a height difference below 1,0 m. 8
4.5 Landings/platforms adjacent to stairs. 8
4.6 Safety of treads . 8
4.7 Hand rails/railings . 8
4.8 Headroom . 8
4.9 Strength . 8
4.10 Fire resistance. 9
5 Manufacturer's declaration . 9
6 Designation. 9

Page 3
Foreword
This European Standard has been prepared by Technical Committee CEN/TC 15 "Inland navigation vessels" , the
secretariat of which is held by DIN.
This European Standard supersedes EN 790:1994.
This European Standard shall be given the status of a national standard, either by publication of an identical text or
by endorsement, at the latest by November 2001, and conflicting national standards shall be withdrawn by
November 2001.
The standard specifies requirements for stairs within the meaning of Council Directive 82/714/EEC of 4 October
1982 laying down technical requirements for inland waterway vessels.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,
France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden,
Switzerland and the United Kingdom.

Page 4
1 Scope
This European Standard applies to stairs with inclination angles of 45° to 60°, having atleasttwo steps, in working
areas of inland navigation vessels.
It does not apply to stairs in passenger areas.
NOTE Whenever possible, stairs specified in EN 13056 should be preferred.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions fronm other publications. These
normative references are cited at the appropriate places in the text and the publications are listed hereafter. For
dated references, subsequent amendments to or revisions of any of these publications apply to this European
Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the
publication referred to applies (including amendments).
EN 711, Inland navigation vesselst – Railings for decks – Requirements, types
EN 22768-1, General tolerances – Part 1: Tolerances for linear and angular dimensions without individual tolerance
indications (Identical to ISO 2768-1:1989)
EN 13056:2000, Inland navigation vessels – Stair
...