GB/T 21400.2-2008 English PDF

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GB/T 21400.2-2008: Traveler irrigation machines -- Part 2: Soft-wall hose and couplings -- Test methods
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 21400.2-2008	134	Add to Cart	3 days	Traveler irrigation machines -- Part 2: Soft-wall hose and couplings -- Test methods	Valid

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Basic data

Standard ID: GB/T 21400.2-2008 (GB/T21400.2-2008)
Description (Translated English): Traveler irrigation machines -- Part 2: Soft-wall hose and couplings -- Test methods
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: B91
Classification of International Standard: 65.060.35
Word Count Estimation: 7,753
Date of Issue: 2008-02-03
Date of Implementation: 2008-07-01
Quoted Standard: GB/T 5563-2006; GB/T 9573-2003; GB/T 14905-1994; ISO 1421; ISO 7326; ASTM D 412; ASTM D3389
Adopted Standard: ISO 8224-2-1991, IDT
Regulation (derived from): National Standard Approval Announcement 2008 No.2 (Total No.115)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the irrigation machines with hose fittings and special physical properties and durability test of rapid test methods. This section applies to agricultural and forestry irrigation machines hoses and fittings.

GB/T 21400.2-2008: Traveler irrigation machines -- Part 2: Soft-wall hose and couplings -- Test methods

---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.
Traveller irrigation machines Part 2. Softwall hose and couplings Test methods ICS 65.060.35 B91 National Standards of People's Republic of China GB/T 21400.2-2008/ISO 8224-2.1991 Irrigation machines - Part 2. Hoses and Fittings experiment method (ISO 8224-2.1991, IDT) Posted 2008-02-03 2008-07-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 21400 "irrigation machines -" is divided into two parts. Operating characteristics and laboratory and field test methods;. --- Part 1 --- Part 2. Test methods hose and fittings. This part of GB/T 21400 "irrigation machines -" Part 2. This part identical with ISO 8224-2.1991 "Capstan spray Irrigation machines - Part 2. hose and couplings - Test methods "(in English). This section is equivalent translation ISO 8224-2.1991. For ease of use, this section made the following editorial changes. --- "ISO 8224 this part" to "this Part"; --- Deleted international standards foreword; --- Instead of using the decimal point as a decimal point ",". ","; --- ISO 8224-2.1991 and other international standards referenced in our country has been adopted as a standard by our standards instead of the corresponding country International standards. This part is proposed by China Machinery Industry Federation. This part of the National Standardization Technical Committee on Agriculture machinery centralized. This section drafted by. Chinese Academy of Agricultural Mechanization Sciences, Jiangsu University. The main drafters of this section. orchid only, Zhang Xian Sheng, instrument Xiu Tang, Wang Yang, Hou Yongsheng. GB/T 21400.2-2008/ISO 8224-2.1991 Irrigation machines - Part 2. hose and couplings - Test methods

1 Scope

This section provides irrigation machines - with a hose and fitting special physical properties and durability test of rapid test methods. This section applies to agricultural and forestry winch sprinkler hose and fittings.

2 Normative references

The following documents contain provisions which, through reference GB/T 21400 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 5563-2006 Rubber and plastic hoses and hose assemblies - Hydrostatic testing (ISO 1402.1994, IDT) GB/T 9573-2003 Rubber and plastics hose and hose assemblies size measurement method (ISO 4671.1999, IDT) GB/T 14905-1994 Rubber and plastics hoses - Determination of adhesion between layers (eqv ISO 8033.1991) Determination of strength and elongation ISO 1421 Rubber or plastic coated fabrics stretch Resistance under ISO 7326 Rubber hoses and plastic hoses ozone static conditions Performance Evaluation ASTMD412 Standard Test Method for Tensile Properties of Rubber Standard Test Method for Coated Fabrics ASTMD3389 abrasion resistance (double-headed rotating platform abrasion machine)

3 Terms and Definitions

The following terms and definitions apply to this section. 3.1 Flexible reinforced water hose. At the rated working pressure when filled with water, which is approximately circular cross-sectional shape; after vent out of water, can be rolled up Come. The hose from the outer fabric reinforcement layer and an inner layer impermeable composition. 3.2 Increase the amount of the increase due to the pressure caused by the length of the hose. 3.3 Sprinkler hose is winch machine shop on the ground, the position of the hose caused by the elongation of the relative deviation from the original linear state. 3.4 Pressure hose with respect to the normal round of vertical and horizontal folds. 3.5 Hose inlet pressure measured in units of MPa.

4 Test Equipment

4.1 Scope 0MPa ~ 3.3MPa, the reading accuracy of ± 2% of pressure gauges or other pressure measuring devices. GB/T 21400.2-2008/ISO 8224-2.1991 ......

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