Subcommittee D18.22 on Media for Plant Growth
Matching Standards Under the Jurisdiction of D18.22 by Status
Active 15 matching standards
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D2944-22 Standard Practice of Sampling Processed Peat Materials for Horticultural Purposes
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D2973-22 Standard Test Method for Total Nitrogen in Peat Materials
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D2977-22 Standard Practice for Particle Size Range of Peat Materials for Horticultural Purposes
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D2978-15e1 Standard Test Methods for Volume of Processed Peat Materials
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D4531-15 Standard Test Methods for Bulk and Dry Density of Peat and Peat Products
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D4544-20 Standard Practice for Estimating Peat Deposit Thickness
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D5268-22 Standard Specification for Topsoil Used for Landscaping and Construction Purposes