EN 13963-2014 pdf download.Jointing materials for gypsum boards – Definitions , requirements and test methods.
Immediately remove excess water by blotting with dry absorbent paper and re-weigh the specimen to the
nearest 0,01 g.
5.9.1.4 Expression of results
Calculate the difference (in grams) between the dry mass and the wet mass of each specimen.
Calculate the average difference in mass and multiply this by 100. Record this value as the surface absorption of the skimmed face of the gypsum plasterboard expressed in gIm2.
5.9.2 Total water absorption
5.9.2.1 PrincIple
Conditioned specimens (as in 5.9.1.3) are immersed in water at (23 ± 2) °C and the percentage increase in mass is determined.
5.9.2.2 Apparatus
a) Balance permitting readings to 0.1 g;
b) water bath at (23 ± 2) C large enough to hold the specimen.
5.9.2.3 Procedure
Cut a specimen measuring ((300 ± 1,5) (300 ± 1.5)1 mm from each board, skimmed with 2 mm thickness of the jointing compound to be tested, approximately half-way between the edges and at least 150 mm from the ends.
Condition the specimens to constant mass2 at (23 ± 2) °C and (50 ± 5) % relative humidity, weigh to the nearest 0,1 g and carry out the test immediately.
Immerse the specimen in a water bath at (23 ± 2) C covered with 25 mm to 35 mm of water for 2 h ± 2 mm. Place the specimen horizontally but not resting flat on the bottom of the container.
After removal from the bath, wipe excess water from the surface and edges of the specimen and weigh immediately to the nearest 0,1 9.
5.9.2.4 Expression of results
Calculate increase in mass of each specimen as a percentage of the initial mass. Record the average percentage increase in mass as the water absorption of the skimmed gypsum board.
The compliance of jointing materials for gypsum boards 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 (FPC).
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).
For the purposes of testing, jointing materials for gypsum boards may be grouped into families, where it is considered that the selected property Is common to all jointing materials within that family.
The decision on those products or properties wtnch fall within a family shall be made by the manufacturer.
6.2 Type testing
6.2.1 General
Sampling and testing shall be in accordance with Clause 5.
The results of all type tests shall be recorded and held by the manufacturer for at least 10 years.
6.2.2 DetermInation of the product type
Determination of the product type shall be performed to show conformity with this document.
Determination of the product type shall be performed at the beginning of the production of a new jointing material type (unless it is a member of a family previously tested) or at the beginning of a new method of production (where this may affect the stated properties).
Tests previously performed in accordance with the provisions of this document (same product, same characteristic(s), test method, sampling procedure, system of AVCP, etc.) may be taken into account.
All product characteristics in Clause 4 applicable to the intended uses shall be subject to the determination of the product type:
— release of dangerous substances may be assessed indirectly by controlling the content of the substance concerned;
— when design values or declared values are used;
— when reaction to fire is class A.1 (no contribution to fire) without further testing as 4.1.
6.3.1 General
The manufacturer shall establish, document and maintain an FPC system to ensure that the products placed on the market conform with the stated performance 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.
A FPC system conforming with the requirements of EN ISO 9001, and made specific to the requirements of this European Standard, should be considered to satisfy the above requirements.
The results of inspections, tests or assessments requiring action shall be recorded, as shall any action taken. The action to be taken when control values or criteria are not met shall be recorded and retained for the period specified in the manufacturer’s FPC procedures.
6.3.2 Personnel
The responsibility, authority and the relationship between personnel that manage, perform or verify work affecting product conformity, shall be defined. This applies in particular to personnel that need to initiate actions preventing product non-conformities from occurring, actions in case of non-conformities and to identify and register product conformity problems. Personnel performing work affecting product conformity shall be competent on the basis of appropriate education, training, skills and experience for which records shall be maintained,
6.3.3 Equipment
6.3.3.1 Testing
All weighing, measuring and testing equipment shall be calibrated and regularly inspected according to documented procedures, frequencies and criteria.
6.3.3.2 ManufacturIng
All equipment used in the manufacturing process shall be regularly inspected and maintained to ensure use, wear or failure does not cause inconsistency in the manufacturing process. Inspections and maintenance shall be carried out and recorded in accordance with the manufacturer’s written procedures and the records retained for the period defined in the manufacturer’s FPC procedures.
6.3.4 Raw materials and components
The specifications of all Incoming raw materials and components shall be documented, as shall the inspection scheme for ensuring their conformity.EN 13963-2014 pdf download.