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Development of minimum standards for hardwoods used in producing underground coal mine timbers

Informally Refereed
Download (PDF 459 KB): https://research.fs.usda.gov/download/treesearch/11123.pdf

Abstract

This note presents minimum standards for raw material used in the production of sawn, split, and round timbers for the underground mining industry. The standards are based on a summary of information gathered from many mine-timber producers.

Citation

Timson, Floyd G. 1978. Development of minimum standards for hardwoods used in producing underground coal mine timbers. Research Note NE-261. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 4 p.