Test Images

Description

Particle Size Distribution (P.S.D.) analysis is a fundamental technique used to determine the range and proportion of particle sizes within a material sample. It is widely applied in pharmaceuticals, construction materials, food processing, mining, and environmental science to evaluate quality, performance, and processing characteristics of powders, soils, and suspensions.

Principle:
P.S.D. measures how particles are distributed across different size ranges, often expressed as percentage by volume or weight. Techniques include sieving, laser diffraction, dynamic light scattering (DLS), sedimentation analysis, and image analysis. The method chosen depends on particle size range (nanometer to millimeter), sample type, and required precision.

Importance:

Pharmaceuticals: Ensures uniform drug release and bioavailability.

Construction materials: Determines cement and sand quality for concrete strength.

Food industry: Controls texture and solubility of powdered ingredients.

Environmental studies: Characterizes soil particles for erosion and sedimentation analysis.

Mining and metallurgy: Optimizes grinding and separation processes.

Accurate P.S.D. data helps in process optimization, product standardization, and regulatory compliance, making it a critical parameter in quality control and research laboratories.

Sample Collection Information

• Volume Required: 2g


• Nature of Sample: Fecal, Urine, Sputum, Powder, Liquid


• Packaging Instructions: For Liquid samples, per analysis, measure 5ml
  Measure 2grams per analysis for solid samples
  Liquid samples should be sent in sample bottles, pet bottles, or any air-tight container.
  Solid samples should be sent in zip lock bags, sample bottles, or any air-tight container.
  Samples should be labeled legibly with paper tape, marker, or writing pen.
  Labels should be short and precise (not more than 3 words).
  All samples must be strapped together and secured in a bag prior to transport.
  Write the Following on the Bag, or Envelope “Allschoolabs Analysis – Receiver: Madison, 08163383206” then add the address of whichever collection center you are sending to.

Sample Result