Subcommittee D18.22 on Media for Plant Growth

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Showing results 1-15 of 15 matching ACTIVE standards under the jurisdiction of D18.22     D18 Home

D1997-20 Standard Test Method for Laboratory Determination of the Fiber Content of Peat and Organic Soils by Dry Mass

D2944-14 Standard Practice of Sampling Processed Peat Materials

    See also WK66980 proposed revision

D2973-16 Standard Test Method for Total Nitrogen in Peat Materials

    See also WK66818 proposed revision

D2974-20e1 Standard Test Methods for Determining the Water (Moisture) Content, Ash Content, and Organic Material of Peat and Other Organic Soils

D2976-15 Standard Test Method for pH of Peat Materials

    See also WK38449 proposed withdrawal

    See also WK71801 proposed revision

    See also WK74646 proposed revision

D2977-14 Standard Practice for Particle Size Range of Peat Materials for Horticultural Purposes

    See also WK66982 proposed revision

D2978-15e1 Standard Test Methods for Volume of Processed Peat Materials

    See also WK50169 proposed revision

D2980-17e1 Standard Test Method for Saturated Density, Moisture-Holding Capacity, and Porosity of Saturated Peat Materials

    See also WK66819 proposed revision

D4531-15 Standard Test Methods for Bulk and Dry Density of Peat and Peat Products

    See also WK66817 proposed revision

D4544-20 Standard Practice for Estimating Peat Deposit Thickness

D4972-19 Standard Test Methods for pH of Soils

    See also WK71770 proposed revision

D5268-19e1 Standard Specification for Topsoil Used for Landscaping and Construction Purposes

D5715-14 Standard Practice for Estimating the Degree of Humification of Peat and Other Organic Soils (Visual/Manual Method)

    See also WK66816 proposed revision

    See also WK71789 proposed withdrawal

D5883-18 Standard Guide for Use of Rotary Kiln Produced Expanded Shale, Clay or Slate (ESCS) as a Mineral Amendment in Topsoil Used for Landscaping and Related Purposes

    See also WK66820 proposed revision

D8249-19 Standard Practice for Use of Rotary Kiln Produced Porous Ceramic as a Mineral Amendment in Topsoil Used for Landscaping and Related Purposes

    See also WK71769 proposed revision

Showing results 1-3 of 3 matching Proposed New Standards under the jurisdiction of D18.22     D18 Home

WK49346 New Specification for Turf Grass Seed

WK61127 Determining the Total Porosity, Container Capacity and Air Space of a Growing Media utilizing a Porometer

WK75979 Determination of the electrical conductivity of plant soil substrates

Showing Results 1-2 of 2 matching WITHDRAWN standards under the jurisdiction of D18.22     D18 Home

D5435-13 Standard Test Method for Diagnostic Soil Test for Plant Growth and Food Chain Protection (Withdrawn 2019)

D5539-14 Standard Specification for Seed Starter Mix (Withdrawn 2019)