GB/T 21403-2008 Active National standards

GB/T 21403-2008 Irrigation equipment—Differential pressure Venturi-type liquid additive injectors

Publish Date: 2008-02-03 Implement Date: 2008-07-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 21403-2008

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Agricultural machinery and equipment

ICS Name: Irrigation and drainage equipment

Publish Date: 2008-02-03

Implement Date: 2008-07-01

Pages: 8 pages

Scope

This standard specifies the design, operating instructions, and testing methods of the "Venturi-type differential pressure liquid injection nozzles". This type of "Venturi-type differential pressure liquid injection nozzles" is used in irrigation systems to inject soluble chemicals into the system, including liquid fertilizers, water-soluble liquid fertilizers, acids, corrosive solutions, insecticides, herbicides, and other liquid additives. This standard does not include backflow prevention devices for drinking water supply systems. Installation devices near Venturi-type nozzles are included in the detailed rules for waterproofing measures.

Development Information

Word Count: 13 Thousand words Pages: 8 pages

Referenced Standards

GB/T 2828.1-2003 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 7306.1-2000 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads—Part 1:Parallel internal and taper external threads

Adopt standards

ISO 15873:2002

Related Standards

GB/T 17187-1997 Replaced

GB/T 17187-1997 Agricultural irrigation equipment—Emitter—Specification and test methods

Publish Date: 1997-12-26

GB/T 17188-1997 Replaced

GB/T 17188-1997 Agricultural irrigation equipment—Emitting-pipe systems—Specification and test methods

Publish Date: 1997-12-26

GB/T 18025-2000 Active

GB/T 18025-2000 Agricultural irrigation—Wiring and equipment for electrically driven or controlled irrigation machines

Publish Date: 2000-03-16

GB/T 12785-2002 Replaced

GB/T 12785-2002 Test methods for submersible motor-pumps

Publish Date: 2002-03-10

GB/T 18687-2002 Replaced

GB/T 18687-2002 Agricultural irrigation equipment—Sprayers—General requirements and test method

Publish Date: 2002-03-10

GB/T 18688-2002 Replaced

GB/T 18688-2002 Agricultural irrigation equipment—Pressure losses in irrigation valves—Test method

Publish Date: 2002-03-10