JT/T 374-1998 in English

1 Scope

This standard specifies the classification, specification and dimension, technical requirements, test methods and inspection rules as well as marking, packaging, transportation and quality certificate for highway fence products.
This standard is applicable to the fences for roads. Fences used for isolation in municipal administration, garden, airport and sports places, etc. may also refer to the provisions of this standard.

2 Normative References

The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. At the time of publication, all the editions listed are valid. As all the standards will be revised, each party using this standard shall discuss the feasibility of using the latest edition of the following standards.
GB 222-84 Method of Sampling Steel for Determination of Chemical Composition and Permissible Variations for Product Analysis
GB 223-81 Methods for Chemical Analysis of Iron, Steel and Alloy
GB 228-87 Tensile Test Method for Metal
GB 232-88 Metallic Materials-Bend Test
GB 238-84 Metallic Materials-wire-reverse Bend Test
GB 343-94 Low Carbon Steel Wire for General Uses
GB 470-83 Classification and Technical Conditions for Zinc
GB 700-88 Carbon Structural Steels
GB 912-89 Hot-rolled Sheets and Strips of Carbon Structural Steels and High Strength Low Alloy Structural Steels
GB 2975-82 Rules for Sampling in Mechanical and Technological Testing of Steel Products
GB 3098-82 Mechanical Properties of Fasteners
GB 6397-86 Metallic Materials - Test Pieces for Tensile Testing
GB 11253-89 Cold-rolled Plain Carbon and Low Alloy Structural Steel Sheets and Strips
GB 11953-89 Steel Mesh
GB 13793-92 Steel Pipes with a Longitudinal Electric (Resistance) Weld
JTJ 053-94 Testing Methods of Concrete for Highway Engineering

3 Product Classification

3.1 By the type of mesh sheet, fences may be classified into steel mesh fence, woven mesh fence, welded wire mesh fence and barbed wire fence.
3.2 By the section form of post, fences may be classified into straight welded steel pipe post fence, structural steel post fence, Y-shaped steel post fence and steel post fences of other sectional forms as well as concrete post fence.
3.3 By anticorrosion form, fences may be classified into hot-dip galvanized fence, hot-dip aluminum plated fence and fence impregnated (coated) with plastic.

Foreword i
1 Scope
2 Normative References
3 Product Classification
4 Product Specification and Dimension
5 Technical Requirements
6 Test Methods and Inspection Rules
7 Packing, Marking, Transportation and Quality Certificate
Appendix A (Normative) Test Method for Adhesion Amount of Hot Dip Galvanized Coating
Appendix B (Normative) Test Method for Uniformity of Hot Dip Galvanized Coating - Impregnation Method with Cupric Sulfate
Appendix C (Normative) Test Method for Adhesiveness of Hot Dip Galvanized Coating