ANSI AWWA D130-11:2019 pdf download.Geomembrane Materials for Potable Water Applications.
ANSI AWWA D130-11 Pertains to geomembrane materials supplied in sheet form for lining, covering, or lining and covering potable water reservoirs. The successful application of ANSI AWWA D130-11 is dependent on an appropriate site evaluation, design, material selection, construction, as well as operations and maintenance. ANSI AWWA D130-11 includes requirements for material properties, fabrication, and installation.
AWWA Manual M25 complements ANSI AWWA D130-11 by providing supplemental definitions of terms, as well as design, installation, operation, and maintenance considerations for geomembrane systems.
Sec. 1.2 Purpose
The purpose of ANSI AWWA D130-11 is to provide the minimum requirements for geomembrane lining and floating-cover materials for potable water storage, including minimum requirements for materials, fabrication, and installation and quality assurance.
Sec. 1.3 Application
ANSI AWWA D130-11 can be referenced in specifications for purchasing, fabricating, and installing geornembrane lining and floating cover materials for potable water
applications. The stipulations of this standard apply when this document has been referenced to geornembrane lining and floating cover materials for potable water storage.
SECTION 2: REFERENCES
ANSI AWWA D130-11 references the following documents. In their latest editions, they form a part of this standard to the extent specified within the standard. In any case of conflict, the requirements of this standard shall prevail.
ASTM D751—Standard Test Methods for Coated Fabrics.
ASTM D5199—Standard Test Method for Measuring the Nominal Thickness of Geosynthetics.
ASTM D5397—Standard Test Method for Evaluation of Stress Crack Resistance of Polyolefin Geomembranes Using Notched Constant Tensile Load Test.
ASTM D6392—Standard Test Method for Determining the Integrity of Non reinforced Geomembrane Seams Produced Using Thermo-Fusion Methods.
AWWA Manual M25—Flexible-Membrane Covers and Linings for Potable- Water Reservoirs.
NSF/ANSI 61—Drinking Water System Components—Health Effects.
SECTION 3: DEFINITIONS
The following definitions shall apply in ANSI AWWA D130-11:
1. Baffle.. Fixed or floated geomembrane curtains designed for the purpose of redirecting current flow in water storage systems. Geomembrane baffles are commonly used to provide increased chemical contact time, to eliminate short circuit flows between inlets and outlets, and to increase retention times where required.
2. Bonded seam strength: Strength of a geomembrane seam as measured in shear or peel modes. Strength of scams is reported either in absolute units (i.e., lb [kg] or lb/in. [kg/mm] of width) or as a percent of strength of the parent membrane.ANSI AWWA D130-11 pdf download.