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GB/T 18690.4-2023 English PDF

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US$334.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 18690.4-2023: Agricultural irrigation equipment - Filters for micro irrigation - Part 4: Granulated media filters
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 18690.4-2023	334	Add to Cart	3 days	Agricultural irrigation equipment - Filters for micro irrigation - Part 4: Granulated media filters	Valid

Similar standards

GB/T 24674 GB/T 12785 GB 16151.12 GB/T 18688 GB/T 18690.2 GB/T 18690.3

Basic data

Standard ID: GB/T 18690.4-2023 (GB/T18690.4-2023)
Description (Translated English): Agricultural irrigation equipment - Filters for micro irrigation - Part 4: Granulated media filters
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: B91
Classification of International Standard: 65.060.35
Word Count Estimation: 18,169
Date of Issue: 2023-11-27
Date of Implementation: 2024-06-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 18690.4-2023: Agricultural irrigation equipment - Filters for micro irrigation - Part 4: Granulated media filters

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 65:060:35 CCSB91 National Standards of People's Republic of China Filters for micro-irrigation of agricultural irrigation equipment Part 4: Granular Media Filters (ISO 9912-4:2018,IDT) Published on 2023-11-27 2024-06-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration Committee

Foreword

This document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting: This document is Part 4 of GB/T 18690 "Filters for Micro-irrigation of Agricultural Irrigation Equipment": GB/T 18690 has been released with Lower part: ---Part 1: Terms, definitions and classifications; ---Part 2: Mesh filters and disc filters; ---Part 3: Automatic flushing of mesh filters and laminated filters; ---Part 4: Granular Media Filters This document is equivalent to ISO 9912-4:2018 "Filters for micro-irrigation of agricultural irrigation equipment - Part 4: Granular media filters": Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents: This document is proposed by China Machinery Industry Federation: This document is under the jurisdiction of the National Agricultural Machinery Standardization Technical Committee (SAC/TC201): This document was drafted by: Anhui Felit Filtration System Co:, Ltd:, China Academy of Agricultural Mechanization Sciences Group Co:, Ltd:, Jiangsu University Fluid Machinery Engineering Technology Research Center, Samsung (Wenling) Pump Co:, Ltd:, Jiangsu University Fluid Machinery Wenling Research Institute, Hebei Runong Water Saving Technology Co:, Ltd:, Hangzhou Lin'an Hankison Filtration Equipment Co:, Ltd:, and Xinjiang Academy of Agricultural Sciences Agricultural Mechanization Research Institute: The main drafters of this document: Zhang Lichun, Lu Shusheng, Li Guidong, Zhao Liwei, Chen Jian, Zhao Yiteng, An Shengxin, Bao Bingyue, Zhang Xiansheng, Yang Huimin, Lu Peng, Yuan Shouqi, Wang Yang, Li Hong, Xingli:

Introduction

GB/T 18690 "Filters for Micro-irrigation of Agricultural Irrigation Equipment" is intended to consist of four parts: ---Part 1: Terms, definitions and classifications: The purpose is to give the terms, definitions and classification of filters for microirrigation: ---Part 2: Mesh filters and disc filters: The purpose is to give the structural requirements of mesh filters and laminated filters: Sum test method: ---Part 3: Automatic flushing of mesh filters and laminated filters: The purpose is to provide automatic flushing of mesh filters and laminations Structural requirements and test methods for type filters: ---Part 4: Granular media filters: The purpose is to give the structural requirements and test methods for particulate media filters: This series of standards completely gives the terms and definitions of filters for micro-irrigation, the structural requirements and test methods of different types of filters, and provides It provides a basis for the manufacturing and product upgrading of filters for micro-irrigation of agricultural irrigation equipment: Filters for micro-irrigation of agricultural irrigation equipment Part 4: Granular Media Filters

1 Scope

This document specifies the structural requirements and testing of pressurized granular media filters (hereinafter referred to as media filters) for use in agricultural irrigation systems: method: This document applies to manually cleaned media filters and automatic self-cleaning media filters: This document applies to a single filter, also Suitable for filter combinations (two or more filter combinations working in parallel): This document covers media filters and all associated valves, backwash mechanisms, ducts, manifolds and other components necessary for filter operation: Operation and performance of related accessories: This document applies to the following three configurations of filters: a) Empty filter (water tank) housing: b) Filters containing media filter material, equipped with valves, connections, exhausts and/or other accessories: When connected to the flush control unit When configured and controlled by a flush control device, this configuration is a fully operational single filter unit, usually as part of a filter station: part: c) Filter stations called "filter combinations": Appendix A gives information on types of irrigation media filters: Appendix B gives information on granular media:

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document: Note: GB/T 18688-2023 Pressure loss test method for irrigation valves of agricultural irrigation equipment (ISO 9644:2018, IDT) Note: GB/T 18690:1-2009 Filters for micro-irrigation of agricultural irrigation equipment Part 1: Terms, definitions and classification (ISO 9912-1:2004, IDT) ISO 9912-2:2013 Filters for micro-irrigation of agricultural irrigation equipment Part 2: Mesh filters and laminated filters (Agri- ters) Note: GB/T 18690:2-2017 Filters for micro-irrigation of agricultural irrigation equipment Part 2: Mesh filters and laminated filters (ISO 9912-2: 2013,IDT) ISO 9912-3 Filters for micro-irrigation of agricultural irrigation equipment Part 3: Automatic flushing mesh filters and laminated filters Note: GB/T 18690:3-2017 Filters for micro-irrigation of agricultural irrigation equipment Part 3: Automatic flushing mesh filters and laminated filters ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 18690.4-2023_English be delivered?

Answer: Upon your order, we will start to translate GB/T 18690.4-2023_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 18690.4-2023_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 18690.4-2023_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.