ASME A112.14.3 CSA.B481.1 2022 w ERRATA
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ASME A112.14.4-2022/CSA B481.5:22 Grease Removal Devices
| Published By | Publication Date | Number of Pages |
| ASME | 2022 | 83 |
This Standard specifies material, design, construction and performance criteria for the testing and rating of grease interceptors equipped with automatic grease removal devices (GRD) and it applies to GRDs designed to automatically remove free-floating fats, oils, and grease (FOG) from sanitary discharges without intervention from the user except for maintenance.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | ASME A112.14.3-2022/CSA B481.1:22, Hydromechanical grease interceptors |
| 3 | Revision History |
| 4 | Standards Update Service |
| 12 | ASME A112 Standards Committee on Plumbing Materials and Equipment |
| 16 | ASME A112.14.3 Project Team on Grease Interceptors |
| 18 | CSA Technical Committee on Drains and Interceptors |
| 21 | ASME/CSA Harmonization Task Group on Drains and Interceptors |
| 23 | Preface |
| 25 | 1 Scope 1.1 Inclusions 1.2 Exclusions 1.3 Terminology 1.4 Units of measure 1.5 U.S. gallons 1.6 Alternatives |
| 26 | 2 Reference publications |
| 28 | 3 Definitions and abbreviations 3.1 Definitions |
| 29 | 3.2 Abbreviations |
| 30 | 4 Material requirements 4.1 General 4.2 Optional material specifications 5 Construction requirements 5.1 General 5.2 Flow control devices 5.2.1 Rating |
| 31 | 5.2.2 Flow controls and/or vents 5.3 Fasteners 5.3.1 Threaded fasteners 5.3.2 Fasteners for corrosion-resistant grease interceptors 6 Test methods and performance requirements 6.1 Loading test for covers 6.1.1 Load classification 6.1.2 Test equipment |
| 32 | 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 6.2.1 Functional leakage requirements 6.2.2 Hydrostatic pressure test |
| 33 | 6.3 Rating test 6.3.1 Construction of test equipment |
| 34 | 6.3.2 Installation of testing equipment — Direct connection test types A, B, and C (see Figures and ) |
| 36 | 6.3.3 Installation of testing equipment — Indirect connection test types D |
| 37 | 6.3.4 Installation of testing equipment — Interceptors larger than 378 L/min (100 gpm) types A, B, and C (see Figure ) |
| 38 | 6.3.5 Installation of testing equipment — Interceptors larger than 378 L/min (100 gpm) type D (see Figure ) |
| 39 | 6.3.6 Preliminary test procedure |
| 41 | 6.3.7 Rating test |
| 43 | 6.3.8 Skimming |
| 44 | 6.3.9 Grease interceptor rating test reporting form 6.4 Corrosion test 6.4.1 General 6.4.2 Test method 6.4.3 Pass/fail criteria 6.4.4 Scale specimens |
| 45 | 6.5 Chemical and corrosion resistant grease interceptors 7 Marking and literature 7.1 Required markings 7.2 Optional markings 7.3 Marking quality |
| 46 | 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 8.1 Prohibited fixtures |
| 47 | 8.2 Sizing 8.2.1 Sizing determination 8.2.2 Sizing considerations 8.2.3 Size symbols 8.3 Sizing calculations 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 |
| 48 | 8.3.5 Multiple fixtures 8.3.6 Sizing by pipe capacity 8.4 Location 8.4.1 Location considerations 8.4.2 Clearance and access considerations 8.5 Installation 8.5.1 Types of installations 8.5.2 Prohibited fixtures |
| 49 | 8.5.3 Waste line venting 8.5.4 Alternate installations |
| 66 | Annex A (informative) Additional considerations |
| 67 | Annex B (informative) Principles of operation of grease interceptors |
| 68 | Annex C (informative) Grease interceptor rating |
| 69 | Annex D (informative) Material specifications for mild steel, thermoplastics, fibreglass, and concrete |
| 71 | Annex E (informative) Chemical and corrosion resistance |
| 75 | Annex F (informative) Selection of grease interceptors — Additional information |
| 77 | Annex G (informative) Maintenance of grease interceptors |
| 80 | Annex H (informative) Best management practices for liquid waste |
| 82 | Annex I (informative) Service monitoring log |
