ASTM D4491-99a
Standard Test Methods for Water Permeability of Geotextiles by Permittivity

Standard No.

ASTM D4491-99a

Release Date

1999

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D4491-99a(2004)

Latest

ASTM D4491/D4491M-22

Scope

1.1 These test methods provide procedures for determining the hydraulic conductivity (water permeability) of geotextiles in terms of permittivity under standard testing conditions, in the uncompressed state. Included are two procedures: the constant head method and the falling head method.

1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units 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.

ASTM D4491-99a history

• 2022 ASTM D4491/D4491M-22 Standard Test Methods for Water Permeability of Geotextiles by Permittivity
• 2021 ASTM D4491/D4491M-21 Standard Test Methods for Water Permeability of Geotextiles by Permittivity
• 2020 ASTM D4491/D4491M-20e1 Standard Test Methods for Water Permeability of Geotextiles by Permittivity
• 2020 ASTM D4491/D4491M-20 Standard Test Methods for Water Permeability of Geotextiles by Permittivity
• 2017 ASTM D4491/D4491M-17 Standard Test Methods for Water Permeability of Geotextiles by Permittivity
• 2016 ASTM D4491/D4491M-16 Standard Test Methods for Water Permeability of Geotextiles by Permittivity
• 2015 ASTM D4491/D4491M-15 Standard Test Methods for Water Permeability of Geotextiles by Permittivity
• 1999 ASTM D4491-99a(2014)e1 Standard Test Methods for Water Permeability of Geotextiles by Permittivity
• 1999 ASTM D4491-99a(2009) Standard Test Methods for Water Permeability of Geotextiles by Permittivity
• 1999 ASTM D4491-99a(2004)e1 Standard Test Methods for Water Permeability of Geotextiles by Permittivity
• 1999 ASTM D4491-99a(2004) Standard Test Methods for Water Permeability of Geotextiles by Permittivity
• 1999 ASTM D4491-99a Standard Test Methods for Water Permeability of Geotextiles by Permittivity