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eLibrary > ASME A112.14.3/CSA B481.1 - 2022 Hydromechanical Grease Interceptors >

ASME A112.14.3/CSA B481.1 - 2022 Hydromechanical Grease Interceptors, 2022

ASME A112.14.3-2022/CSA B481.1:22, Hydromechanical grease interceptors
Standards Update Service
ASME A112 Standards Committee on Plumbing Materials and Equipment
ASME A112.14.3 Project Team on Grease Interceptors
CSA Technical Committee on Drains and Interceptors
ASME/CSA Harmonization Task Group on Drains and Interceptors
Preface
1 Scope [Go to Page]
1.1 Inclusions
1.2 Exclusions
1.3 Terminology
1.4 Units of measure
1.5 U.S. gallons
1.6 Alternatives
2 Reference publications
3 Definitions and abbreviations [Go to Page]
3.1 Definitions
3.2 Abbreviations
4 Material requirements [Go to Page]
4.1 General
4.2 Optional material specifications
5 Construction requirements [Go to Page]
5.1 General
5.2 Flow control devices [Go to Page]
5.2.1 Rating
5.2.2 Flow controls and/or vents
5.3 Fasteners [Go to Page]
5.3.1 Threaded fasteners
5.3.2 Fasteners for corrosion-resistant grease interceptors
6 Test methods and performance requirements [Go to Page]
6.1 Loading test for covers [Go to Page]
6.1.1 Load classification
6.1.2 Test equipment
6.1.3 Test method
6.1.4 Load at failure
6.1.5 Calculation of maximum safe live load
6.1.6 Cover load rating
6.2 Leakage requirements [Go to Page]
6.2.1 Functional leakage requirements
6.2.2 Hydrostatic pressure test
6.3 Rating test [Go to Page]
6.3.1 Construction of test equipment
6.3.2 Installation of testing equipment — Direct connection test types A, B, and C (see Figures and )
6.3.3 Installation of testing equipment — Indirect connection test types D
6.3.4 Installation of testing equipment — Interceptors larger than 378 L/min (100 gpm) types A, B, and C (see Figure )
6.3.5 Installation of testing equipment — Interceptors larger than 378 L/min (100 gpm) type D (see Figure )
6.3.6 Preliminary test procedure
6.3.7 Rating test
6.3.8 Skimming
6.3.9 Grease interceptor rating test reporting form
6.4 Corrosion test [Go to Page]
6.4.1 General
6.4.2 Test method
6.4.3 Pass/fail criteria
6.4.4 Scale specimens
6.5 Chemical and corrosion resistant grease interceptors
7 Marking and literature [Go to Page]
7.1 Required markings
7.2 Optional markings
7.3 Marking quality
7.4 Permanent markings
7.5 Cover marking
7.6 Installation instructions
7.7 Maintenance and cleaning instructions
8 Sizing, location, and installation of grease interceptors [Go to Page]
8.1 Prohibited fixtures
8.2 Sizing [Go to Page]
8.2.1 Sizing determination
8.2.2 Sizing considerations
8.2.3 Size symbols
8.3 Sizing calculations [Go to Page]
8.3.1 Process
8.3.2 Sizing by fixture volume
8.3.3 Fixtures to be connected to grease interceptors
8.3.4 Interceptor sizing based on discharge flow rate
8.3.5 Multiple fixtures
8.3.6 Sizing by pipe capacity
8.4 Location [Go to Page]
8.4.1 Location considerations
8.4.2 Clearance and access considerations
8.5 Installation [Go to Page]
8.5.1 Types of installations
8.5.2 Prohibited fixtures
8.5.3 Waste line venting
8.5.4 Alternate installations
Annex A (informative)Additional considerations
Annex B (informative)Principles of operation of grease interceptors
Annex C (informative)Grease interceptor rating
Annex D (informative)Material specifications for mild steel, thermoplastics, fibreglass, and concrete
Annex E (informative)Chemical and corrosion resistance
Annex F (informative)Selection of grease interceptors — Additional information
Annex G (informative)Maintenance of grease interceptors
Annex H (informative)Best management practices for liquid waste
Annex I (informative)Service monitoring log [Go to Page]

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