Sound and noise reduction expert

Recently, the standard document of “JINBIAOTechnical Requirements for Metal Sound Barriers” drafted by Hengshui City Market Supervision Bureau, Hebei Jinbiao Building Materials Technology Co., Ltd. and Hebei Wire Mesh Product Quality Supervision and Inspection Center has been approved, August 2019 The implementation began on the 1st.
This standard covers the general terms and definitions of metal sound barriers, specifications, technical requirements, test methods and so on. It is suitable for metal sound barriers used to reduce the influence of noise on the acoustic environment of sensitive areas during noise propagation. It is usually composed of screen body, supporting members and necessary connecting parts.

The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 700-2006 carbon structural steel
GB/T 10125-2012 Artificial atmosphere corrosion test Salt spray test
GB/T 11263-2017 hot rolled H-beam and split T-beam
GB/T 18226-2015 Anti-corrosion technical conditions for steel components of highway traffic engineering
Sound insulation of buildings and buildings - Part 3: Laboratory measurements of airborne sound insulation of building elements
GB/T 20247-2006 Acoustics Reverberation chamber sound absorption measurement
GB/T 51335-2018 Sound barrier structure technical standard
JT/T 646.1-2016 Road sound barriers Part 1: Classification
JT/T 646.4-2016 Road sound barriers Part 4: Technical requirements and test methods for acoustic materials
The standard is based on sufficient preparation, mature technology and advanced, all technical indicators are scientific and reasonable, technical measures are comprehensive and specific, and the technical level is leading domestically.

The metal sound barrier has become a sound and noise reduction facility promoted and used in the Beijing-Tianjin-Hebei region. Previously, there was no clear standard for the specifications of the metal sound barrier, and there was no way to measure the quality of the product. The specifications of the metal sound barrier were specified in this document. parameter:
The implementation of this standard document provides a basis for regulating and improving the quality of metal sound barrier products in the Beijing-Tianjin-Hebei region.
According to the local standard announcement issued by the provincial bureau, the six standards of Hengshui City were approved as local standards of Hebei Province, of which 5 were wire mesh industry standards, in addition to the “General Technical Requirements for Metal Sound Barriers” described above, The items are "General Technical Requirements for Steel Wire (Rebar) Welded Wire Mesh", "General Technical Requirements for Steel Wire Linked Flower Net (Rhombus Net)", "General Technical Requirements for Aluminum Plate Tensile Decoration Net", and "General Technical Requirements for Aluminum Window Gap". It is believed that the implementation of these standards will greatly promote the market-speaking power of wire mesh enterprises and increase their market share.