NF EN ISO 28765

NF EN ISO 28765

June 2011
Standard Cancelled

Vitreous and porcelain enamels - Design of bolted steel tanks for the storage or treatment of water or municipal or industrial effluents and sludges

ISO 28765:2008 establishes the requirements for the design and use of vitreous-enamel-coated bolted cylindrical steel tanks for the storage or treatment of water or municipal or industrial effluents and sludges.It applies to the design of the tank and any associated roof and gives guidance on the requirements for the design of the foundation.It applies wherethe tank is cylindrical and is mounted on a load-bearing base substantially at or above ground level;the product of the tank diameter in metres and the wall height in metres lies within the range 5 to 500;the tank diameter does not exceed 100 m and the total wall height does not exceed 50 m;the stored material has the characteristics of a liquid, exerting a negligible frictional force on the tank wall; the stored material may be undergoing treatment as part of a municipal or industrial effluent treatment process;the internal pressure in the headspace above the liquid does not exceed 50 kPa and the internal partial vacuum above the liquid does not exceed 10 kPa;the walls of the tank are vertical;the floor of the tank is substantially flat at its intersection with the wall; the floor of the tank may have a rise or fall built in to allow complete emptying of the tank contents, the slope of which does not exceed 1:100;there is negligible inertial and impact load due to tank filling;the minimum thickness of the tank shell is 1,5 mm;the material used for the manufacture of the steel sheets is carbon steel (tanks constructed of sheets made from aluminium or stainless steel are outside the scope of this International Standard);the temperature of the tank wall during operation is within the range -50 °C to +100 °C under all operating conditions.This International Standard also gives details of procedures to be followed during installation on site and for inspection and maintenance of the installed tank.It does not apply to chemical-reaction vessels.It does not apply to tanks fitted with floating roofs.It does not cover resistance to fire.

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Main informations

Collections

National standards and national normative documents

Publication date

June 2011

Number of pages

33 p.

Reference

NF EN ISO 28765

ICS Codes

13.060.01   Water quality in general
23.020.10   Stationary containers and tanks
25.220.50   Enamels

Classification index

A92-128

Print number

1 - 16/05/2011

International kinship

European kinship

EN ISO 28765:2011
Sumary
Vitreous and porcelain enamels - Design of bolted steel tanks for the storage or treatment of water or municipal or industrial effluents and sludges

ISO 28765:2008 establishes the requirements for the design and use of vitreous-enamel-coated bolted cylindrical steel tanks for the storage or treatment of water or municipal or industrial effluents and sludges.

It applies to the design of the tank and any associated roof and gives guidance on the requirements for the design of the foundation.

It applies where

  1. the tank is cylindrical and is mounted on a load-bearing base substantially at or above ground level;
  2. the product of the tank diameter in metres and the wall height in metres lies within the range 5 to 500;
  3. the tank diameter does not exceed 100 m and the total wall height does not exceed 50 m;
  4. the stored material has the characteristics of a liquid, exerting a negligible frictional force on the tank wall; the stored material may be undergoing treatment as part of a municipal or industrial effluent treatment process;
  5. the internal pressure in the headspace above the liquid does not exceed 50 kPa and the internal partial vacuum above the liquid does not exceed 10 kPa;
  6. the walls of the tank are vertical;
  7. the floor of the tank is substantially flat at its intersection with the wall; the floor of the tank may have a rise or fall built in to allow complete emptying of the tank contents, the slope of which does not exceed 1:100;
  8. there is negligible inertial and impact load due to tank filling;
  9. the minimum thickness of the tank shell is 1,5 mm;
  10. the material used for the manufacture of the steel sheets is carbon steel (tanks constructed of sheets made from aluminium or stainless steel are outside the scope of this International Standard);
  11. the temperature of the tank wall during operation is within the range -50 °C to +100 °C under all operating conditions.

This International Standard also gives details of procedures to be followed during installation on site and for inspection and maintenance of the installed tank.

It does not apply to chemical-reaction vessels.

It does not apply to tanks fitted with floating roofs.

It does not cover resistance to fire.

Replaced standards (1)
NF EN 15282
June 2007
Standard Cancelled
Vitreous and porcelain enamels - Design of bolted steel tanks for the storage or treatment of water or municipal or industrial effluents and sludges

Le présent document établit les exigences relatives à la conception et à l'utilisation de réservoirs cylindriques en acier boulonnés revêtus d'émail vitrifié pour le stockage et le traitement des effluents municipaux ou industriels.

Standard replaced by (1)
NF EN ISO 28765
April 2016
Standard Cancelled
Vitreous and porcelain enamels - Design of bolted steel tanks for the storage or treatment of water or municipal or industrial effluents and sludges

ISO 28765:2016 establishes the requirements for the design and use of vitreous-enamel-coated bolted cylindrical steel tanks for the storage or treatment of water or municipal or industrial effluents and sludges. It applies to the design of the tank and any associated roof and gives guidance on the requirements for the design of the foundation. It applies where a) the tank is cylindrical and is mounted on a load-bearing base substantially at or above ground level; b) the product of the tank diameter in metres and the wall height in metres lies within the range 5 to 500; c) the tank diameter does not exceed 100 m and the total wall height does not exceed 50 m; d) the stored material has the characteristics of a liquid, exerting a negligible frictional force on the tank wall; the stored material may be undergoing treatment as part of a municipal or industrial effluent treatment process; e) the internal pressure in the headspace above the liquid does not exceed 50 kPa and the internal partial vacuum above the liquid does not exceed 10 kPa; f) the walls of the tank are vertical; g) the floor of the tank is substantially flat at its intersection with the wall; the floor of the tank may have a rise or fall built in to allow complete emptying of the tank contents, the slope of which does not exceed 1:100; h) there is negligible inertial and impact load due to tank filling; i) the minimum thickness of the tank shell is 1,5 mm; j) the material used for the manufacture of the steel sheets is carbon steel (tanks constructed of sheets made from aluminium or stainless steel are outside the scope of this International Standard); k) the temperature of the tank wall during operation is within the range −50 °C to +100 °C under all operating conditions. ISO 28765:2016 also gives details of procedures to be followed during installation on site and for inspection and maintenance of the installed tank. It does not apply to chemical-reaction vessels. It does not cover resistance to fire.

Table of contents
  • Avant-propos
    iv
  • 1 Domaine d'application
    1
  • 2 Références normatives
    2
  • 3 Termes et définitions
    3
  • 4 Symboles et abréviations
    5
  • 5 Unités
    6
  • 6 Informations et exigences devant être spécifiées et faire l'objet d'un accord
    6
  • 6.1 Généralités
    6
  • 6.2 Informations devant être fournies par l'acheteur
    6
  • 6.3 Informations devant être fournies par le concepteur
    7
  • 7 Normes applicables
    7
  • 8 Charges
    8
  • 8.1 Généralités
    8
  • 8.2 Contenus
    8
  • 8.3 Structure du réservoir
    9
  • 8.4 Toit
    9
  • 8.5 Charges d'équipement
    9
  • 8.6 Accès
    10
  • 8.7 Aspect environnemental
    10
  • 8.8 Articles accessoires
    11
  • 9 Conception
    11
  • 9.1 Généralités
    11
  • 9.2 Acier
    11
  • 9.3 Réservoir
    12
  • 9.4 Ouvertures
    17
  • 9.5 Conséquences des accidents
    19
  • 10 Revêtement d'émail vitrifié
    19
  • 10.1 Émail vitrifié
    19
  • 10.2 Revêtement
    19
  • 10.3 Qualité de l'émail vitrifié
    20
  • 10.4 Protection au cours de la livraison
    26
  • 10.5 Entretien
    26
  • 11 Installation
    26
  • 11.1 Lignes directrices générales
    26
  • 11.2 Assises
    26
  • 11.3 Contrôle du revêtement d'émail vitrifié sur le site de construction
    26
  • 12 Désinfection
    26
  • Bibliographie
    27
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