EN 977:1997
(Main)Underground tanks of glass-reinforced plastics (GRP) - Method for one side exposure to fluids
Underground tanks of glass-reinforced plastics (GRP) - Method for one side exposure to fluids
This European standard specifies a method for the one side exposure to fluids of samples of tanks of glass reinforced thermosetting resins for the underground storage of liquids.
Unterirdische Tanks aus textilglasverstärkten Kunststoffen (GFK) - Prüfanordnung zur einseitigen Beaufschlagung mit Fluiden
Diese Europäische Norm legt eine Prüfanordnung zur einseitigen Beaufschlagung mit Fluiden von Mustern aus Tanks aus textilglasverstärkten Reaktionsharz- Formstoffen zur unterirdische Lagerung von Flüssigkeiten fest.
Réservoirs enterrés en plastiques renforcés de verre (PRV) - Méthode d'exposition unilatérale d'une plaque aux fluides
La présente norme européenne définit une méthode qui permet une exposition unilatérale aux fluides des échantillons de réservoirs en résines thermodurcissables renforcées de fibres de verre destinés au stockage souterrain de liquides.
Podzemni rezervoarji iz armiranega poliestra - Postopek za preskus ene strani na vpliv tekočine
General Information
Overview
EN 977:1997 is a European Standard published by CEN that defines a method for one side exposure to fluids of samples taken from underground tanks made of glass‑reinforced plastics (GRP) - specifically glass‑reinforced thermosetting resins used for the underground storage of liquids. The standard establishes a repeatable laboratory procedure to assess how a single surface of a GRP tank material reacts when in contact with service fluids, supporting material evaluation, quality control and type testing for underground storage tanks.
Key Topics
The standard addresses practical testing topics relevant to GRP underground tanks, including:
- Scope and applicability: samples taken from GRP tanks for underground storage of liquids.
- Sample selection and preparation: guidance on representative specimens from tank walls or components.
- Test apparatus and setup: configuration for exposing one side of a specimen to a fluid while protecting the opposite side.
- Exposure procedure: controlled contact between the test fluid and the sample surface to simulate in-service conditions.
- Observation and assessment: inspection and methods for recording physical or chemical changes to the exposed surface.
- Test reporting: required documentation of test conditions, fluid types, observations and results.
(EN 977 is indexed under ICS 23.020.10 - stationary containers and reservoirs/tanks.)
Applications
EN 977 is useful wherever evaluation of GRP materials’ compatibility with liquids is required:
- Manufacturers of GRP underground tanks seeking standardized methods for material qualification and quality control.
- Testing and inspection laboratories performing type tests, comparative evaluations or material compatibility studies.
- Design engineers and specifiers assessing long‑term performance and selecting GRP laminates for specific stored liquids.
- Regulatory authorities and certification bodies that require reproducible evidence of material behaviour for underground storage approvals.
Using EN 977 helps stakeholders understand how a GRP tank surface responds to chemical exposure from fuels, oils, water or other stored liquids under controlled one‑side contact conditions.
Related Standards
- EN 977 is a European (CEN) standard; national adoptions exist (for example, SIST EN 977:2000 is the Slovenian adoption identical to EN 977:1997).
- Relevant audiences often consult EN 977 alongside other standards on GRP tanks, underground storage design and material testing to form a complete compliance and test program.
Keywords: EN 977, GRP underground tanks, glass‑reinforced plastics, one side exposure to fluids, thermosetting resins, tank testing, material compatibility, CEN standard.
Frequently Asked Questions
EN 977:1997 is a standard published by the European Committee for Standardization (CEN). Its full title is "Underground tanks of glass-reinforced plastics (GRP) - Method for one side exposure to fluids". This standard covers: This European standard specifies a method for the one side exposure to fluids of samples of tanks of glass reinforced thermosetting resins for the underground storage of liquids.
This European standard specifies a method for the one side exposure to fluids of samples of tanks of glass reinforced thermosetting resins for the underground storage of liquids.
EN 977:1997 is classified under the following ICS (International Classification for Standards) categories: 23.020.10 - Stationary containers and tanks. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 977:1997 is associated with the following European legislation: EU Directives/Regulations: 2008/68/EC, TRRTP121. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
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Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2000
3RG]HPQLUH]HUYRDUMLL]DUPLUDQHJDSROLHVWUD3RVWRSHN]DSUHVNXVHQHVWUDQLQD
YSOLYWHNRþLQH
Underground tanks of glass-reinforced plastics (GRP) - Method for one side exposure to
fluids
Unterirdische Tanks aus textilglasverstärkten Kunststoffen (GFK) - Prüfanordnung zur
einseitigen Beaufschlagung mit Fluiden
Réservoirs enterrés en plastiques renforcés de verre (PRV) - Méthode d'exposition
unilatérale d'une plaque aux fluides
Ta slovenski standard je istoveten z: EN 977:1997
ICS:
23.020.10 1HSUHPLþQHSRVRGHLQ Stationary containers and
UH]HUYRDUML tanks
2003-01.Slovenski inštitut za s
...
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