MIDDLE EAST TESTING SERVICES W.L.L QATAR

Sludge, Soil & Fertilizer Testing

Comprehensive Testing for Sustainable Agriculture and Safe Waste Management

At METS Laboratory, we provide ISO/IEC 17025-accredited sludge, soil, and fertilizer testing services to ensure environmental safety, soil fertility, and regulatory compliance in Qatar.

Our testing programs follow MME and GSO standards, helping clients across agriculture, environmental monitoring, and industrial sectors meet both national and GCC requirements.

We ensure every test result supports Qatar’s National Vision 2030 for sustainable land management and safe reuse of resources.

1. Introduction — Protecting Qatar’s Soil and Environment

Sustainable land and waste management are essential for environmental protection and food security in Qatar.

The Ministry of Municipality and Environment (MME) and the Qatar General Organization for Standards and Metrology (QGOSM) mandate strict analytical control for:

  • Soil and land quality

  • Fertilizers and compost products

  • Treated sludge and biosolids

Our accredited laboratory in Doha conducts chemical, physical, and microbiological testing for sludge, soil, and fertilizers, ensuring compliance with Qatar, GCC (GSO), and ISO standards.

gloved hand holding test tube by river


2. Regulatory Framework and Standards in Qatar

All testing services comply with Qatar’s environmental and agricultural laws, including:

  • Qatar Environmental Protection Law No. 30 of 2002

  • MME Environmental Regulations (2020)

  • Qatar Construction Specifications (QCS 2014 & 2022) – Section on Environmental and Agricultural Materials

  • GSO 1773:2003 – Organic and Inorganic Fertilizers

  • GSO 1475:2013 – Treated Sludge and Biosolids for Agricultural Use

  • GSO 1411:2002 – Soil Quality – Sampling and Testing Methods

  • ISO/IEC 17025 – Laboratory Competence

Our methods align with ASTM, ISO, APHA, and AOAC standards and are fully recognized by MME and QGOSM.

3. Our Testing Capabilities

We analyze samples from agricultural lands, municipal wastewater treatment plants, industrial facilities, and fertilizer manufacturers.


  1. Soil Analysis
  2. Evaluating soil fertility, contamination, and suitability for cultivation.

    Parameters Tested:

    • pH and Electrical Conductivity (EC)

    • Moisture and Organic Matter Content

    • Major Nutrients (Nitrogen, Phosphorus, Potassium)

    • Micronutrients (Fe, Zn, Cu, Mn, B)

    • Heavy Metals (Pb, Cd, Cr, Ni, Hg, As)

    • Cation Exchange Capacity (CEC)

    • Sulfate, Chloride, Carbonate, and Bicarbonate

    • Particle Size Distribution and Soil Texture

    Compliance Reference:
    GSO 1411:2002 / QCS 2014 – Section 08 (Soil and Aggregates)


  3. Sludge and Biosolid Testing
  4. Ensuring safe reuse or disposal of treated and untreated sludge in line with Qatar’s environmental guidelines.

    Parameters Tested:

    • Moisture and Dry Solids Content

    • Organic Matter and Volatile Solids

    • Heavy Metals (As, Cd, Cr, Cu, Hg, Ni, Pb, Zn)

    • Nutrients (N, P, K)

    • Pathogens (E. coli, Salmonella spp.)

    • Stability, Odor, and Dewaterability

    • pH and Residual Toxicity

    Compliance Reference:
    GSO 1475:2013 – Treated Sludge for Agricultural Use MME Environmental Protection Regulations (Annex III)

  5. Fertilizer and Compost Analysis
  6. Testing chemical and organic fertilizers for nutrient content, safety, and label accuracy.

    Parameters Tested:

    • Total Nitrogen (N)

    • Available Phosphorus (P₂O₅)

    • Soluble Potassium (K₂O)

    • Moisture, Organic Carbon, and C:N Ratio

    • Trace Elements (B, Fe, Zn, Mn)

    • Heavy Metals (Pb, Cd, Hg)

    • pH, EC, and Bulk Density

    Compliance Reference:
    GSO 1773:2003 – Fertilizer Specification & Labelling

gloved hand holding test tube by river






gloved hand holding test tube by river


4. Importance of Sludge, Soil & Fertilizer Testing

Regulatory Compliance

Meets all MME, QGOSM, and GSO testing and environmental requirements.


Environmental Protection

Prevents contamination of groundwater, soil, and crops through early detection of hazardous elements.


Soil Fertility Optimization

Ensures optimal nutrient management for higher agricultural productivity.


Safe Sludge Reuse

Supports circular economy initiatives through safe recycling of biosolids.


Quality Assurance

Verifies fertilizer claims and ensures accurate labelling and nutrient declarations.

5. Example of Test Parameters

Sample Type Parameter Method / Standard Regulatory Reference
Soil pH, EC, NPK, Heavy Metals ISO 10390 / GSO 1411 QCS 2014 / MME
Sludge Heavy Metals, Pathogens APHA 2540 / GSO 1475 MME Environmental Regulation
Fertilizer N, P₂O₅, K₂O, Moisture AOAC / GSO 1773 QGOSM Fertilizer Rule
Compost C:N Ratio, Organic Matter, Metals ASTM D2974 / ISO 14235 MME Waste Guidelines

scientist pouring water into beaker


6. Industries We Serve

  • Agriculture and Landscaping Companies

  • Municipal Wastewater Treatment Plants

  • Fertilizer & Compost Manufacturers

  • Construction & Environmental Consultants

  • Industrial Waste Management Firms

  • Academic and Research Institutions

7. Why Choose METS Laboratoriesoratory

  • ISO/IEC 17025-Accredited Laboratory in Qatar

  • Recognized by the Ministry of Municipality and Environment (MME)

  • Advanced Instrumentation — ICP-OES, Spectrophotometer, GC-MS, Kjeldahl Analyzer

  • Accurate, Reliable Results Following GSO/ISO Standards

  • Expert Consultation for Regulatory Approval

  • Fast Turnaround and Secure Online Reporting

Conclusion — Safeguarding Soil Health and Environmental Sustainability

Sludge, Soil & Fertilizer Testing plays a pivotal role in maintaining environmental integrity and agricultural productivity in Qatar.

At METS, our advanced testing infrastructure ensures safe reuse of resources, compliance with MME regulations, and accurate nutrient management for sustainable growth.

By aligning every analysis with Qatar’s national environmental framework and GSO testing protocols, we help industries, municipalities, and agricultural enterprises achieve true sustainability and compliance confidence.

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