BS EN 12706:2000 – Adhesives Ð Test methods for hydraulic setting floor smoothing and/or levelling
1 Scope
This European Standard specifies a test method to assess the flow characteristics of a hydraulic setting floor smoothing and/or levelling compounds. Hydraulic setting floor smoothing and/or levelling compounds are referred to as “smoothing and/or levelling compound” when mixed with water and/or mixing liquid according to the manufacturers’ instructions.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter.
For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies: prEN 1937:1999, Test method for hydraulic setting floor smoothing and/or levelling compounds – Standard mixing procedures ISO 554 , Standard atmospheres for conditioning and/or testing – Specifications.
3 Terms and definitions
For the purposes of this standard the following definition, together with those given in prEN 1 937:1999, apply:
3.1 flow ability of the mixed floor smoothing and/or levelling compound to spread under its own weight
4 Principle This test method measures the flow properties of a known volume of floor smoothing and/or levelling compound mixture by releasing it from a rigid tube after a given time. The diameter of the spread mixture is measured after a specified time.
5? Safety
Persons using this standard shall be familiar with normal laboratory practice.
This standard does not purport to address all safety problems, if any, associated with its use.
It is the responsibility of the user to establish safety and health practices and to ensure compliance with any European and national regulatory conditions.
6? Apparatus and material
6.1 Tubes, made of smooth, non-corrosive metal, of internal diameter (30 ± 0,1 ) mm and height (50 ± 0,1 ) mm.
6.2 Glass plate, clean and dry, dimensions: 300 mm x 300 mm x 6 mm, for example.
6.3 Timer, with an accuracy of 1 s.
6.4 Linear measuring equipment, with 1 mm divisions.
6.5 Smoothing and/or levelling compound mixture, made in accordance with prEN 1 937:1 999.
7? Standard test conditions
All apparatus and materials shall be conditioned at (23 ± 2) ºC and (50 ± 5) % relative humidity in accordance with ISO 554.
8 Procedure Place one tube (6.1)
centrally on a glass plate (6.2) and set it on a firm horizontal base. When the standard mixing procedure is completed in accordance with prEN 1937:1999, fill the tube to the top edge with the smoothing and/or levelling compound mixture (6.5). Immediately the tube is filled, start the timer (6.3) and simultaneously lift the tube from the glass plate in a vertical direction to a height of 50 mm to 100 mm within 2 s and allow to drain for 10 s to 15 s.
BS EN 12706:2000 – Adhesives Ð Test methods for hydraulic setting floor smoothing and/or levelling