m” of Non-Woven Geotextiles as a Complementary Filtration Property,ASTM International, 12/31/2015" />
  • ASTM D7178-16e1

ASTM D7178-16e1

Standard Practice for Determining the Number of Constrictions “m” of Non-Woven Geotextiles as a Complementary Filtration Property

ASTM International, 12/31/2015

Publisher: ASTM

File Format: PDF

$34.00$68.00


Published:31/12/2015

Pages:5

File Size:1 file , 130 KB

Note:This product is unavailable in Russia, Ukraine, Belarus

1.1 This practice describes the procedure used along with existing test method to determine the number of constrictions m of mechanically bonded non-woven geotextiles, based on thickness, mass per unit area and fiber properties

1.2 The number of constrictions is a property of non-woven geotextiles, which is complementary to opening size to predict their filtration behavior. It can be used to differentiate non-woven geotextiles with similar opening sizes but different structures (thickness, weight, fiber diameter, etc.). However, more research is needed to assess its significance when comparing two products with different opening sizes.

1.3 Consideration of the number of constriction is relevant in filtration applications where piping or clogging concerns are to be controlled with a high level of confidence, that is, for filters applications in critical soils.

1.4 This standard is for design purposes only and is not intended for quality control purposes.

1.5 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.

More ASTM standard pdf

ASTM F3058-16(2021)

ASTM F3058-16(2021)

Standard Practice for Preliminary Field Testing of Thermoplastic Pipe Joints for Gravity Flow (Non-Pressure) Sewer Lines

$23.00 $46.00

ASTM E2023-21

ASTM E2023-21

Standard Practice for Fabrication of Neutron Radiographic Sensitivity Indicators

$34.00 $68.00

ASTM A265-12(2019)

ASTM A265-12(2019)

Standard Specification for Nickel and Nickel-Base Alloy-Clad Steel Plate

$26.00 $52.00

ASTM F1397-93(2020)

ASTM F1397-93(2020)

Standard Test Method for Determination of Moisture Contribution by Gas Distribution System Components

$28.00 $56.00