This standard describes the minimum requirement for fiberglass-reinForced
plastic weir plates, scum bartles, mounting brackets, lap plates, cover washers, and
weir pans, fhbricatcd with thc matched-die molding process. Included are require-
ments for design, construction, dimensions, tolerances, physical properties, work
quality, appearance, and installation. This standard contains the requirements for
using general-purpose and chemical-resistant resins. These Fabrications arc used in
municipal water supply service and industrial water supply service applications.
1.1.I Exceptions. This standard docs not cover weir plates, scum baffles,
mounting brackets, lap plates, and cover washers Fabricated with thc Mhd layttp,
sprayup, or tlat-shcet machine-cut method.
1.1.2 Classification. Resistance to the corrosive or chemical environment
shall be determined prior to molding either Type Ⅰor Type Ⅱ lubrications. Typically,
municipal water supply service applications use Type Ⅰ , and industrial water supply
service applications may use either Type I or Type II, depcnding on tile condition of
the environment. Weir plates, baffles, and brackets shall be classified according to
type as follows:
1.1.2.1 Type I. Fabrications shall be manuf}tctured with a polyester resin of
tile orthophthalic or isophthalic formulation. Type I fabrications shall be manufactured of materials suitable for general purpose applications having a temperature
range not exceeding 150℉ (83℃).
1.1.2.2 Type I1. Fabrications shall be manufactured with a chemical-resistant
polyester resin, such as vinylester, bisphenol-A fumarate, or chlorendic fbrmulations.
Type II fabrications shall be manufactured for chemical-resistant applications having
a temperature range not exceeding 200℉ (111℃).
ANSI/AWWA F102-2007 Referenced Document
ASTM C581 Standard Practice for Determining Chemical Resistance of Thermosetting Resins Used in Glass-Fiber-Reinforced Structures Intended for Liquid Service*， 2020-02-15 Update
ASTM D256 Standard Test Methods for Determining the Izod Pendulum Impact Resistance of Plastics*， 2023-03-15 Update
ASTM D2583 Standard Test Method for Indentation Hardness of Rigid Plastics by Means of a Barcol Impressor
ASTM D570 Standard Test Method for Water Absorption of Plastics*， 2018-08-01 Update
ASTM D638 Standard Test Method for Tensile Properties of Plastics
ASTM D790 Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials*， 2024-04-18 Update
ASTM G23 Practice for Operating Light-Exposure Apparatus (Carbon-Arc Type) With and Without Water for Exposure of Nonmetallic Materials
ASTM G26 Practice for Operating Light-Exposure Apparatus (Xenon-Arc Type) With and Without Water for Exposure of Nonmetallic Materials (Withdrawn 2000)*， 2021-02-18 Update