ASTM D7035 Sliding Wear Resistance Testing Services
The standard test method ASTM D7035-10 is used to measure the content of metals and metalloids in airborne particulate matter. It describes the methodology to collect, prepare and analyze the samples.
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- Overview
- Scope, Applications, and Benefits
- Test Process
- Specifications
- Instrumentation
- Results and Deliverables
Overview
ASTM D7035-10 is a standard test method used for area air sampling to monitor and control inhalable and respirable airborne particles containing metals and metalloids.
This technique involves collecting particulate matter on an appropriate substrate, then using Inductively Coupled Plasma–Atomic Emission Spectrometry (ICP-AES) for chemical digestion and analysis. The method requires proficiency in spectrum and matrix interference analysis, as well as appropriate corrective actions. This approach does not cover elemental mercury and metals in gaseous or vapour form.
Scope, Applications, and Benefits
Scope
ASTM D7035-10 evaluates:
- Airborne particulate metals and metalloids
- Inhalable and respirable fractions
- Soluble and total metal content
- Workplace and environmental air quality
- Exposure risk from airborne contaminants
This method covers alternative preparation techniques for test solutions obtained from airborne particulate samples.
Applications
- Industrial hygiene monitoring
- Occupational exposure assessment
- Environmental air quality studies
- Mining and metallurgical industries
- Manufacturing facilities
- Regulatory compliance testing
- Research laboratories
- Workplace safety programs
Benefits
- Provides accurate quantification of airborne metals
- Supports health and safety compliance
- Enables exposure risk assessment
- Detects multiple elements simultaneously
- High analytical sensitivity
- Standardized and reproducible method
- Supports environmental monitoring programs
Test Process
Air Sampling & Particle Collection
A known volume of air is drawn, and particulate matter is trapped on a filter or capsule.
1Sample Digestion & Ion Conversion
Collected samples are digested with acids, and metals are converted to ionic form.
2Instrumental Analysis
Prepared solutions are analysed using ICP-AES.
3Data Processing
Elemental concentrations are calculated and corrected for blanks and dilutions.
4Technical Specifications
| Parameter | Details |
|---|---|
| Applicable Materials | Airborne particulate matter |
| Flow Rate | 1–5 L/min |
| Sampling Volume | Calculated from flow rate × sampling time |
| Sample Medium | Filter, foam, or filter capsule |
| Analytical Technique | ICP-AES |
Instrumentation Used for Testing
- Air sampling pump
- Filter holders or capsules
- Acid digestion system
- Inductively Coupled Plasma–AES instrument
- Analytical balance
- Volumetric glassware
- Data analysis software
Results and Deliverables
- Airborne metal concentration (mg/m³)
- Blank-corrected values
- Element-specific exposure levels
- Compliance assessment reports
- Comparative monitoring data
Frequently Asked Questions
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