🔬 Bentonite Quality Control and Testing Guide
Nevsehir Bentonite Deposits Technical Documentation
Comprehensive analysis and testing procedures guide prepared according to API, OCMA, TSE, ASTM and ISO standards for world-class bentonite quality control.
1. International Standards and Specifications
API 13A Section 9
High Quality| Parameter | Value | Method |
|---|---|---|
| Viscosity (600 rpm) | ≥ 30 | API RP 13B-1 |
| Filtration Loss | ≤ 15.0 mL/30min | API Filtration |
| Moisture Content | ≤ 13.0% | ASTM D4643 |
| Sand Content (>75µ) | ≤ 4.0% | Wet Screen |
| Yield Point | ≥ 91 bbl/ton | API Standard |
API 13A Section 11
OCMA Quality| Parameter | Value | Method |
|---|---|---|
| Viscosity (600 rpm) | ≥ 30 | API RP 13B-1 |
| Filtration Loss | ≤ 16.0 mL/30min | API Filtration |
| Moisture Content | ≤ 15.0% | ASTM D4643 |
| Sand Content (>75µ) | ≤ 4.0% | Wet Screen |
| Yield Point | ≥ 75 bbl/ton | API Standard |
TSE Standards
Industrial| Standard | Application | Critical Parameter |
|---|---|---|
| TSE 5360 | Foundry | Green sand strength ≥0.7 N/cm² |
| TSE 10252 | Pharmaceutical/Cosmetic | pH 9.5-10.5, As <228 ppm |
| TSE 13500 | General | Certified quality |
ASTM Methods
Analytical| Method | Determination | Measurement |
|---|---|---|
| ASTM C837 | CEC | Methylene blue index |
| ASTM D5890 | Swelling Index | 15-35 mL/2g |
| ASTM D4318 | Atterberg | PI, LL, PL |
| ASTM D4643 | Moisture | % content |
2. Test Classification and Analysis Methods
🧪 Rheological (Flow) Tests
Tests determining drilling mud carrying capacity, suspension stability and pumpability.
- Viscosity Measurements: Measurement at 600, 300, 100, 6, 3 rpm speeds
- Gel Strength: 10-second and 10-minute gel strength
- Calculated Parameters: Plastic viscosity (PV), Yield point (YP)
- Marsh Funnel: Quick field control
⚗️ Physicochemical Analyses
Determination of bentonite chemical structure, purity and contamination levels.
- Methylene Blue Test: CEC (Cation Exchange Capacity)
- pH Measurement: Water-based suspension pH
- Moisture Determination: Drying method with ASTM D4643
- Lead and Heavy Metals: USP/EP limits
🔍 Physical Properties
Particle size distribution, swelling capacity and filtration characteristics.
- Swelling Index: Volume increase in 2g sample
- Filtration Loss: 30 min with API filtration cell
- Sieve Analysis: Sand content above 75 microns
- Atterberg Limits: Plasticity index (PI)
🏭 Industrial Application Tests
Performance tests for specific sector uses.
- Foundry Tests: Green sand strength, deformation
- Yield Point: Efficiency based on bbl/ton
- Microbiological Analysis: For pharmaceutical applications
- Oil Emulsion: Drilling fluid stability
Importance of Quality Control
Standard Compliance
Full compliance guarantee with API, TSE and international standards.
Laboratory Approved
All analyses performed in accredited laboratories.
Comprehensive Reporting
Detailed test results and certificates for each batch.
Fast Analysis
Field and laboratory tests with Fann viscometer.
📋 Technical Documentation and Test Reports
Contact us for detailed analysis procedures and quality certificates.