Particle Size Analysis of Soil Apparatus
NL 5024 X

• ASTM D422 

This standard, titled "Standard Test Method for Particle-Size Analysis of Soils," provides guidelines for evalauting the particle size distribution of soil samples. It covers methods for both mechanical analysis (sieve analysis) and hydrometer analysis. ASTM D422 outlines procedures for sample preparation, dispersion, analysis, and calculation of particle size distribution. This standard is widely used in various industries, including construction, agriculture, and environmental engineering.

• AASHTO T88

The standard also known as "Standard Test Method for Particle-Size Analysis of Soils," offers step-by-step protocols for assessing the distribution of particle sizes within soil samples. It encompasses techniques like mechanical analysis, which employs sieves, and hydrometer analysis. Within this standard, procedures are outlined for preparing samples, dispersing particles, conducting analysis, and calculating particle size distribution. Embraced accross diverse sectors such as construction, agriculture, and environmental engineering, ASTM D422 serves as a cornerstone for reliable soil characterisation methods, facilitating informed decision-making across various industry. 

• UNE 103.102

UNE 103.102 serves as the Spanish standard for analyzing soil particle sizes. While it aligns with the principles of ASTM D422 and AASHTO T88, it caters to Spain's unique regulations and practices. This standard outlines procedures for both sieve and hydrometer analyses, alongside guidance on sample preparation and result interpretation. Its significance lies in ensuring the accuracy and consistency of soil characterization within Spain and other Spanish-speaking areas.

Testing Procedure of Particle Size Analysis of Soil Apparatus

1. Sample Collection: Obtain a representative soil sample from the site of interest. Ensure that the sample is properly labeled and stored to maintain its integrity.
2. Pentration of Sample: Clean the sample, break up any clumps and aggregates to ensure a homogenous mixture.
3. Method Selection: Decide whether to use mechanical analysis (sieve analysis) or hydrometer analysis, based on the soil type and particle size distribution range.
4. Sieve Analysis: To conduct sieve analysis, weigh and sieve soil, record retained soil weights on each sieve, calculate percentages, and plot a particle size distribution curve.
5. Hydrometer Analysis: Disperse soil in a dispersing agent solution in a sedimentation cylinder, then allow settling. Measure hydrometer depth and time intervals, then calculate particle size distribution using Stoke's Law.
6. Data Interpretation: Analyse the results obtained from either method to determine the particle size distribution of the soil sample. Compare the distribution curve with standard soil classifications if necessary.
7. Quality Control: Ensure that the testing follows relevant standards like ASTM D422, AASHTO T88, UNE 103.102, and confirm proper calibration and functionality of all equipment.
8. Reporting: Record the testing process, including sample information, chosen method, results, and any pertinent observations. Ensure that the documentation adheres to applicable regulations and standards.

Technical Specifications of Particle Size Analysis of Soil Apparatus: