H-4368A
Soil Color Charts
Munsell Soil Color Charts for determining soil types by color.
H-4369
Sand Grading Chart
H-3492A
Organic Color Wheel
H-3493A.XX
Organic Impurities Test Set
Determines presence of injurious organic compounds in sands used in cement mortar or concrete
HG-3200
Field Guide for Soil and Stratigraphic Analysis
HG-3201
Field Guide for Rock Core Logging and Fracture Analysis
HG-3202
USDA Soil Texturing Field Flow Chart
HG-3203
USDA Calibrated Soil Kit
HG-3204
USCS Calibrated Baseline Soil Kit
Field Charts
For those involved in soil analysis and classification for size, shape, color, and density characteristics of soils from sands and gravels to silts and clays, Humboldt carries a range of charts and samples to make testing easier. These products can be used on location or in the lab to quickly make judgements on soil color and grain size and shape. Also available are kits with calibrated samples of specific types of soils for quick reference for soil classification and texture for soils encountered on your speciifc site. Also available are easy-to-read charts for assistance with stratigraphic analysis, core logging and fracture analysis and soil texture.
These charts and calibrated samples have become standard tools used by civil engineers, geologists, soils scientists, engineers and technicians to quickly and accurately evaluate soil types; size; shape, color and textures. These evaluation aids have been developed by and in accordance with the U.S. Soil Conservation Service, the Unified Soil Classification System, the Wentworth Grading Scale, the USDA Soil Textural System, Burmister System, ASTM and AASHTO.