BS/EN 14891-2017 pdf download.Liquid applied water impermeable products for use beneath ceramic tiling bonded with adhesives Requirements, test methods, assessment and verification of constancy of performance, classification and marking.
— 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 performances.
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, 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 liquid applied water impermeable 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 the same characteristics for all products within that same family.
NOTE 1 Products are grouped in different families for different characteristics.
NOTE 2 The assessment method standards are chosen to allow the selection of a suitable representative sample.
In addition, the determinadon of the product type shall be performed for alt characteristics Included in the standard for which the manufacturer declares the performance:
— at the beginning of the production of a new liquid applied water impermeable product (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 product 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.
— the manufacturer using other party results accepts to remain responsible for the product having the declared performances and he also:
— ensures that the product has the same characteristics relevant for performance as the one that has been subjected to the determination of the product type. and that there are no significant differences with regard to production facilities and the production control process compared to that used for the product that was subjected to the determination of the product type; and
— keeps available a copy of the determination of the product type report that also contains the information needed for verifying that the product is manufactured according to the same design and with raw materials, constituents and manufacturing methods of the same kind.
6.3 Factory Production Control (FPC)
6.3.1 General
The manufacturer shall establish, document and maintain an FPC system to ensure that the products placed on the market comply with the declared performance of the essential characteristics.
The FPC system shall consist of procedures, regular Inspections and tests and/or assessments and the use of the results to control raw and other incoming materials or components, equipment, the production process and the product.
All the elements, requirements and provisions adopted by the manufacturer shall be documented in a systematic manner in the form of written policies and procedures.
This factory production control system documentation shall ensure a common understanding of the evaluation of the constancy of performance and enable the achievement of the required product performances and the effective operation of the production control system to be checked. Factory production control therefore brings together operational techniques and all measures allowing maintenance and control of the compliance of the product with the declared performances of the essential characteristics.
In case the manufacturer has used shared or cascading product type results, the FPC shall also include the appropriate documentation as foreseen in 6.2.4.
6,3,2 RequIrements
6.3.2.1 General
The manufacturer is responsible for organizing the effective implementation of the FPC system in line with the content of this product standard. Tasks and responsibilities in the production control organization shall be documented and this documentation shall be kept up-to-date.BS/EN 14891-2017 pdf download.