Calculation rules for the bill of quantities: calculated based on the length of the pipeline centerline as shown in the design drawings, without deducting the length occupied by valves, fittings, and various components. Calculation rules for quota quantities: calculated based on the length of the design pipeline centerline, using 'm' as the unit of measurement, without deducting the length occupied by valves, fittings, and various components. Project code: 030703001 Project name: CarbonSteel pipe Project code: 030703007 Project name: Foam proportioning mixer Project code: 030704001 Project name: Pipeline support fabrication and installation [Example] A certain foam fire extinguishing system: using one PH32 ring pump type negative pressure proportioning mixer, angle steel support installed and fixed. The support weighs 250kg, manually removing light rust and applying two coats of red lead anti-rust paint. DN100 low-pressure electric arc welding carbonSteel pipe250m, including 10 fittings and a pipeline support weighing 150kg.Steel pipeUsing manual removal of light rust and applying two coats of red lead anti-rust paint, two coats of red paint; the pipeline undergoes hydraulic testing and water flushing. Compilation requirements: (1) Prepare a bill of quantities for sub-items. (2) Calculate quota quantities. 1. Bill of quantities DN80. Low-pressure electric arc welding carbonSteel pipe, remove light rust, apply two coats of red lead anti-rust paint and two coats of red paint; the piping system undergoes hydraulic testing with a water flushing quantity of 250m. Installation of one PH32 ring pump type negative pressure foam proportioning mixer includes angle steel support installation, removal of light rust, applying two coats of red lead anti-rust paint. Fabrication and installation of pipeline supports, manual removal of light rust, applying two coats of red lead anti-rust paint and two coats of mixed paint weighing 150kg. See table for bill of quantities calculation. 2. Quota quantities (1) DN100 low-pressure electric arc welding carbonSteel pipe: Total length is 250m, calculated using quota standard 6-33 with a measurement unit: per 10m. (2) DN100 low-pressure electric arc welding carbonSteel pipefittings: Total number is 10 pieces, calculated using quota standard 6-649 with a measurement unit: per 10m. (3) PH32 ring pump type negative pressure proportioning mixer: Total number is one piece, calculated using quota standard 7-191 with a measurement unit: piece. (4) Equipment angle steel support: Equipment support fabrication and installation weight is 0.25t, calculated using quota standard 5-2152 with a measurement unit: t. (5) Pipeline support fabrication and installation: General pipe rack weighs150kg, calculated using quota standard6-2845 with a measurement unit: per100kg. (6) Manual removal of light rust from supports: Supports are general steel structures; manual removal weighs150kg; calculated using quota standard11-7 with a measurement unit: per10kg. (7) First coat application of red lead anti-rust paint on supports: Red lead anti-rust paint weighs150kg; calculated using quota standard11-117 with a measurement unit: per100kg. (8) Second coat application of red lead anti-rust paint on supports: Second coat weighs150kg; calculated using quota standard11-118 with a measurement unit: per100kg. (9)Steel pipeManual removal of light rust from pipelines : Manual removal from pipelines covers63㎡; calculated using quota standard11-1with a measurement unit :per10㎡ . (10)Steel pipeFirst coat applicationofredleadanti -rustpaint : First coatofredleadanti -rustpaint covers63㎡ ;calculatedusingquota standard11 -51withameasurementunit :per10㎡ . (11)Steel pipeSecond coat applicationofredleadanti -rustpaint : Second coatofredleadanti -rustpaint covers63㎡ ;calculatedusingquota standard11 -52withameasurementunit :per10㎡ . (12)Steel pipeFirst coat applicationofcorrosion-resistantredpaint : Firstcoatofredmixedpaintcovers63 ;calculatedusingquota standard11 -60withameasurementunit :per10㎡ . (13)Steel pipeSecond coat applicationofcorrosion-resistantredpaint : Secondcoatofredmixedpaintcovers63 ;calculatedusingquota standard11 -61withameasurementunit :per10㎡ . (14) Pressure test within DN100： Pressure test for DN100，calculatedusingquota standard6 -2428withameasurementunit :per100m . (15) Water flushing for DN100： Water flushing，calculatedusingquota standard6 -2475withameasurementunit :per100m . ——The authenticity of this information has not been verified by China Steel Pipe Network and is for your reference only. | 
