ASTM D6707/D6707M-06 (2024) PDF

Full title and description

ASTM D6707/D6707M-06 (2024) — Standard Specification for Circular-Knit Geotextile for Use in Subsurface Drainage Applications. This specification defines requirements for circular-knit polymeric geotextile filter sleeves used around perforated drainage pipe and for Class B geocomposites in subsurface drainage systems.

Abstract

This concise specification covers Type A and Type B circular-knit geotextiles manufactured without seams for use as filtration sleeves on perforated pipe and for certain geocomposite drainage products. It specifies manufacturing form (circular-knit polymeric fabric), required characterization tests (permittivity, apparent opening size, puncture strength, and related quality checks) and notes optional testing for chemical resistance or durability depending on service conditions. The standard provides unit-system guidance (SI and inch-pound) and is intended to ensure consistent product quality for drainage/filter applications rather than to define design procedures.

General information

• Status: Active (reapproved).
• Publication date: Originally approved 2006; reapproved June 6, 2024 (designation D6707/D6707M-06R24).
• Publisher: ASTM International.
• ICS / categories: 59.080.70 (Geotextiles / Geosynthetics).
• Edition / version: 2006 edition, reapproved 2024 (D6707/D6707M-06R24).
• Number of pages: 2.

Scope

The standard covers circular-knit geotextiles produced from polymeric materials by a circular-knit process for use on the outside of perforated pipes and for Class B geocomposites in subsurface drainage applications. It identifies required test methods to characterize filtration and mechanical performance (for example, permittivity, apparent opening size, puncture strength) and indicates that additional tests for chemical resistance or environmental durability may be needed for particular service conditions. The document treats SI and inch‑pound units as separate systems and is focused on product specification and quality rather than design.

Key topics and requirements

• Designation of product types — Type A and Type B circular-knit geotextiles for pipe/filter sleeve applications.
• Manufacturing requirement — continuous circular-knit polymeric fabric produced without seams.
• Filtration/performance characterization — permittivity (water flow), apparent opening size (AOS) and related pore-size measures, and puncture strength tests.
• Optional service testing — chemical resistance and long-term durability tests where required by service conditions.
• Unit systems — separate treatment of SI and inch‑pound units; values in one system are not exact equivalents of the other.
• Intended use — external sleeve on perforated pipe and as the geotextile component of certain Class B geocomposites used for subsurface drainage.

Typical use and users

This standard is used by geotechnical and civil engineers, roadway and drainage contractors, product manufacturers and fabricators of filter sleeves and geocomposites, material testing laboratories, DOT specification writers, procurement specialists, and project specifiers. Typical applications include subsurface drainage around perforated pipe, edge‑drain systems, and geocomposite drainage layers where a circular-knit filter sleeve is specified.

Related standards

Standards commonly referenced together with D6707 include ASTM D7001 (geocomposites for pavement edge drains and other high‑flow applications), ASTM D4491 (water permeability / permittivity of geotextiles), ASTM D4751 (apparent opening size – AOS), ASTM D4439 (geosynthetics terminology) and installation/practice documents such as ASTM D6088 for pavement edge drain installation. Users should consult relevant test methods and related specifications in the ASTM D35 geosynthetics series when preparing procurement or test plans.

Keywords

circular-knit, geotextile, filter sleeve, subsurface drainage, perforated pipe, geocomposite, apparent opening size, permittivity, puncture strength, ASTM D6707

FAQ

Q: What is this standard?

A: ASTM D6707/D6707M-06 (reapproved 2024) is a short specification that defines requirements for circular-knit polymeric geotextile filter sleeves used on perforated drainage pipes and for Class B geocomposites in subsurface drainage applications.

Q: What does it cover?

A: It covers product form (circular-knit, continuous, seam-free fabric), designation of product types (Type A and B), and the testing/characterization required to demonstrate filtration and mechanical performance — for example permittivity, apparent opening size (AOS), and puncture strength — plus guidance on optional chemical resistance and durability testing as needed for particular service environments.

Q: Who typically uses it?

A: Geotechnical and civil engineers, geotextile and geocomposite manufacturers, material testing laboratories, contractors installing subsurface drainage systems, and specification/procurement personnel in transportation and construction agencies.

Q: Is it current or superseded?

A: The document is current and listed as reapproved in 2024 (designation shown as D6707/D6707M-06R24). The original approval date is 2006 and the reapproval confirms the standard remains active without substantive revision as of June 6, 2024.

Q: Is it part of a series?

A: Yes. D6707 is part of the ASTM D35 geosynthetics series and is commonly used alongside related test methods and specifications for geotextiles and geocomposites (for example D4491, D4751, D7001 and other D35 committee documents).

Q: What are the key keywords?

A: circular-knit, geotextile, filter sleeve, subsurface drainage, perforated pipe, geocomposite, permittivity, apparent opening size, AOS, puncture strength.