ISO 9864 pdf download – Geosynthetics -Test method for thedetermination of mass per unit area of geotextiles and geotextile-related products

ISO 9864 pdf download – Geosynthetics -Test method for thedetermination of mass per unit area of geotextiles and geotextile-related products.
The method is applicable to all geotextiles and geotextile-related products.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 554 Standard atmosphe,s for crinditionmg an War tesng — SpeC#CaIéO*’2S.
EN ISO 9862. Geosynthettcs — Samphrig and preparation of test specimens (ISO 9862.2005).
3 Principle
The mass par unit area Is calculated by weighing square or circular specimens of known dimensions cut from positions d,stnbuted over the fuN width and length of the sample,
4 Procedure
4.1 Specimens
Cut no less than ten specimens in accordance with EN ISO 9862 to a nominal size of 100 cm2, using a die
Cut the specimens in such a way that they are representative of the material to be tested, Measure the specimens to an aracy of 0,5 %. If the structure of the product is such that a 100 csn specimen is not representative. if may be necessary to use a larger specimen size in order to achieve the necessary accuracy of measurement
Geotextile.retated products with relatively large mesh sizes — such as geognds or geonets — shall be cut half way between Iwo links of the constituent elements A specimen shall include at least 5 constituent elements in both directions. The area of the specimen shall be individually determined for each specimen.
Condition the specimens in accordance with ISO 554 for a period of 24 h Unl€ss it can be shown that the results are not affected by omitting this procedure.
4.2 Weighing
Weigh each specimen to an accacy of 10 mg.