ASTM D5261-10 pdf free

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ASTM D5261-10 pdf free.Standard Test Method for Measuring Mass per Unit Area of Geotextiles.
ASTM D5261 covers and can be used as an index to the determination of mass per unit area of all geotextiles.
1.2 The values stated in SI units or other units shall be regarded separately as standard. The values stated in parentheses are provided for information only.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
4. Summary of Test Method
4.1 The mass per unit area of a geotextile is determined by weighing test specimens of known dimensions, cut from various locations over the full width of the laboratory sample. The calculated values are then averaged to obtain the mean mass per unit area of the laboratory sample.
5. Significance and Use
5.1 This test method is used to determine if the geotextile material meets specifications for mass per unit area. This test method can be used for quality control to determine specimen conformance. This measurement allows for a simple control of the delivered material by a comparison of the mass per unit area of the delivered material and the specified mass per unit area.
5.2 The procedure in this test method may be used for acceptance testing of commercial shipments, but caution is advised since information about between-laboratory precision is incomplete. Comparative tests in accordance with 5.2. I are advisable.
6. Apparatus
6.1 Balance, calibrated, capable of weighing to 50(X) g, with an accuracy of 0.01 g.
7. Sampling
7. 1 Loi Sample—Divide the test specimens Into lots, and for the lot to be tested, take the lot sample in accordance with Practice D4354.
7.2 Laboratory Sample—Consider the units in the lot sample as the units in the laboratory sampic. For the laboratory sample, take a full width swatch of sufficient length along the salvage so that the requirements of Section 7.3 can be met.
7.2.1 The laboratory sample should be free from imperfections or other areas not representative of the material sampled.ASTM D5261-10 pdf download.

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