Detail of GB/T 27710-2020

Introduction of GB/T 27710-2020

Floor drain 1 Scope This standard specifies the terms and definitions, classification, materials, requirements, test methods, inspection rules, marking, packaging, transportation and storage of floor drains. This standard is applicable to floor drains used in civil buildings. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 1176 Casting copper and copper alloys GB/T2828.1 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection GB/T 2829 Sampling procedures and tables for periodic inspection by attributes (apply to inspection of process stability) GB/T 5231 Designation and chemical composition of wrought copper and copper alloys GB/T 5270-2005 Metallic coatings on metallic substrates - Electrodeposited and chemically deposited coatings - Review of methods available for testing adhesion GB/T 6461-2002 Methods for corrosion testing of metallic and other inorganic coatings on metallic substrates - Rating of test specimens and manufactured articles subjected to corrosion tests GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgment of limiting values GB/T 8801 Test method for unplasticized polyvinyl chloride (PVC-U) fittings by falling GB/T 8802 Thermoplastics pipes and fitting - Determination of vicat softening temperature GB/T 9286-1998 Paints and varnishes - Cross cut test for films GB/T 10125-2012 Corrosion tests in artificial atmospheres - Salt spray tests GB/T 20878 Stainless and heat-resisting steels - Designation and chemical composition GB/T 21873 Rubber seals - Joint rings for water supply drainage and sewerage pipelines - Specification for materials GB/T 26311 Rods and bars of recycling copper and copper alloys GB/T 27572 Rubber seals - Joint rings for pipelines for hot-water supply up to 110℃ - Specification for the materials 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 floor drain device that receives accumulated water on the ground and transmits it to a drainage system 3.2 floor drain with seal floor drain that only relies on water filling to form a trap seal inside to achieve sealing function 3.3 mechanical seal floor drain floor drain that only relies on mechanical structure to achieve sealing function 3.4 blend seal floor drain floor drain sealed by two or more methods 3.5 straight floor drain floor drain without any structure preventing the gas in the drainage pipeline from spilling back 3.6 manual floor drain floor drain with sealing cover, which is manually opened when draining and manually closed when no drainage required 3.7 side-drain floor drain floor drain installed vertically and with the function of laterally receiving and discharging the accumulated water on the ground 3.8 floor drain with filter floor drain with frame that can intercept sundries and be taken out for cleaning 3.9 spill-proof floor drain floor drain with the function of preventing the waste water from spilling over the ground during discharge and preventing the waste water in the drainage system from spilling back to the ground 3.10 multi-channel floor drain floor drain with multiple water inlet channels, which can receive both ground drainage and drainage of multiple appliances 3.11 same-floor drain embedded floor drain floor drain installed on this floor and with the discharge pipe not penetrating the floor 3.12 grate of floor drain cover with grid on the surface, which is used as floor drain inlet 3.13 cover of floor drain cover without water holes such as grille, which is one of the components of manual floor drain 3.14 trap seal depth height difference between the highest water level of the trap seal producing sealing effect and that of trap seal when it fails 3.15 mounting size size of the joint between floor drain and drainage pipe

Contents of GB/T 27710-2020

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Classification 5 Materials 6 Requirements 7 Test methods 8 Inspection rules 9 Marking, packaging, transportation and storage Annex A (Informative) Schematic diagram for basic structure of floor drain Annex B (Normative) Floor drain inspection and test apparatus