GB/T 41713-2022 in English

Standard Framework and Technology Evolution

This specification is based on the experience of recycling and utilizing afforestation waste, integrates 7 industry standards such as LY/T2379-2014 and LY/T2384-2014, and establishes a wood chip classification system covering three major application areas for the first time.

Interpretation of Key Technical Indicators

Key points for testing and certification

Special microbial testing

When the rotating disc culture method (GB/T18869-2019) is used to test the wood chips used for animal bedding, the incubator temperature must be accurately maintained at 37±0.5℃.

Application of new rapid testing technology

At present, the industry generally uses X-ray fluorescence spectroscopy for rapid screening of heavy metals, combined with inductively coupled plasma mass spectrometry (ICP-MS) for precise testing.

Industry Implementation Recommendations

A biomass fuel company in Zhejiang Province has improved its product crush resistance by 20% and achieved an annual production capacity of over 80,000 tons by optimizing molding parameters (120℃/25MPa). Specific process improvements include: controlling the particle size of raw materials to 2-8mm and controlling the moisture gradient of mixed materials.