BS/EN 14814-2016 pdf download.Adhesives for thermoplastic piping systems for fluids under pressure-Specifications.
The resistance for pressure resistance is assessed by the resistance to internal pressure.
The adhesive joints shall be prepared according to the instructions recommended by the adhesive manufacturer.
The adhesive joints shall be tested against pressure resistance in accordance with 5.2.
4.4 Resistance for high temperature
The resistance for high temperature is assessed by the resistance to internal pressure.
The adhesive joints shall be prepared according to the instructions recommended by the adhesive manufacturer.
The adhesive joints shall be tested against water leakage in accordance with 5.2.
4.5 Shelf life
Adhesive producers shall indicate the minimum shelf life of the adhesive when it is stored in unopened containers.
Shelf life of adhesives shall be assessed with the requirements of 5.3.
4.6 Release of dangerous substances
National regulations on dangerous substances may require verification and declaration on release, and sometimes content, when construction products covered by this standard are placed on those markets. In the absence of European harmonized test methods, verification and declaration on release/content should be done taking into account national provisions in the place of use.
NOTE An informative database covering European and national provisions on dangerous substances is available at the Construction website on EUROPA accessed through:
http/Jec.europa,eu/enterprise/construction/cpd-dsJ.
4.7 Durability
The durability of tightness and resistance to high temperature of the adhesive joints shall comply with the requirements of 5.5.
5 Testing, assessment and sampling methods
5.1 Resistance to pull out
The adhesive shall be tested in accordance with EN ISO 9311-2 using pipe and fitting compatible with the claims of the adhesive suitability. The sampling procedure shall be defined by the manufacturer and the number of samples is one. The mean of the test results shall meet the requirements of Table 4.
5.5 Durability
The durability of tightness and resistance to high temperature of the adhesive joints is assessed by the
internal pressure test and shall comply with 5.2.
6 Assessment and verification of constancy of performance — (AVCP)
6.1 General
The compliance of adhesives for thermoplastic piping systems under pressure with the requirements of this standard and with the performances declared by the manufacturer in the DoP shall be demonstrated by:
— determination of the product type;
— factory production control by the manufacturer, including product assessment.
The manufacturer shall always retain the overall control and shall have the necessary means to take responsibility for the conformity of the product with its declared performance(s).
6.2 Type testing
6.2.1 General
All performances related to characteristics included in this standard shall be determined when the manufacturer intends to declare the respective performances unless the standard gives provisions for declaring them without performing tests. (e.g. use of previously existing data, classified without further testing (CWFT) and conventionally accepted performance).
Assessment previously performed in accordance with the provisions of this standard, may be taken into account provided that they were made to the same or a more rigorous test method, under the same AVCP system on the same product or products of similar design, construction and functionality, such that the results are applicable to the product in question.
For the purposes of assessment, the manufacturer’s products may be grouped into families, where it is considered that the results for one or more characteristics from any one product within the family are representative for that same characteristics for all products within that same family.
Products may be grouped in different families for different characteristics. Example:
Products/Formulations which only differ in colour or slightly in viscosity can be considered as one product family.
Reference to the assessment method standards should be made to allow the selection of a suitable representative sample.
In addition, the determination of the product type shall be performed for all characteristics included in the standard for which the manufacturer declares the performance:
— at the beginning of the production of a new or modified adhesive for thermoplastic piping systems under pressure (unless a member of the same product range), or
— at the beginning of a new or modified method of production (where this may affect the stated properties); or
— they shall be repeated for the appropriate characteristic(s), whenever a change occurs in the adhesive for thermoplastic piping systems under pressure design, in the raw material or in the supplier of the components, or in the method of production (subject to the definition of a family), which would affect significantly one or more of the characteristics.
Where components are used whose characteristics have already been determined, by the component manufacturer, on the basis of assessment methods of other product standards, these characteristics need not be re-assessed. The specifications of these components shall be documented.
Products bearing regulatory marking in accordance with appropriate harmonized European specifications may be presumed to have the performances declared in the DoP, although this does not replace the responsibility on the adhesive for thermoplastic piping systems under pressure manufacturer to ensure that the adhesive for thermoplastic piping systems under pressure as a whole is correctly manufactured and its component products have the declared performance values.
6.2.2 Test samples, testing and compliance criteria
The number of samples of adhesives for thermoplastic piping systems under pressure to be tested/assessed shall be in accordance with Table 6.BS/EN 14814-2016 pdf download.