ASTM D6071 Low-Level Sodium Testing in High-Purity Water by GFAAS
ASTM D6071 covered the measurement of trace sodium in high purity water. The sodium concentration range for this technique is 1–40 g/L. The values are expressed in SI units.
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- Overview
- Scope, Applications, and Benefits
- Test Process
- Specifications
- Instrumentation
- Results and Deliverables
Overview
ASTM D6071 provides a test method for determining low concentrations of sodium in high-purity water using graphite furnace atomic absorption spectroscopy (GFAAS). This method is highly sensitive and suitable for detecting trace levels of sodium contamination.
It is widely used in industries such as semiconductor manufacturing, pharmaceuticals, and power generation, where high-purity water is essential.
Scope, Applications, and Benefits
Scope
ASTM D6071 focuses on the quantitative determination of sodium at very low concentrations in high-purity water. It ensures accurate monitoring of contamination levels.
The test evaluates:
- Sodium concentration at trace levels
- Purity of water samples
- Contamination control effectiveness
- Suitability for high-purity applications
- Compliance with quality standards
Applications
- Semiconductor and electronics industry
- Pharmaceutical water systems
- Power plant boiler feed water
- Laboratory-grade water analysis
- Ultra-pure water systems
- Quality control in water treatment
Benefits
- High sensitivity and accuracy
- Detects very low sodium concentrations
- Supports contamination control
- Ensures compliance with strict purity requirements
- Improves the reliability of high-purity systems
Test Process
Sample Preparation
Water samples are collected and handled to avoid contamination.
1Instrument Calibration
Graphite furnace AAS is calibrated using sodium standards.
2Sample Analysis
Samples are introduced into the graphite furnace for measurement.
3Data Recording & Evaluation
Sodium concentration is calculated and compared with specifications.
4Technical Specifications
| Parameter | Details |
|---|---|
| Applicable Materials | High purity water |
| Test Method | Graphite furnace atomic absorption spectroscopy |
| Detection Range | Trace levels (ppb range) |
| Test Temperature | Controlled furnace temperature program |
| Measured Outputs | Sodium concentration (µg/L or ppb) |
Instrumentation Used for Testing
- Graphite furnace atomic absorption spectrometer
- High-purity sample containers
- Micropipettes and calibration standards
- Clean laboratory environment setup
- Data acquisition system
Results and Deliverables
- Sodium concentration report
- Calibration and quality control data
- Contamination assessment
- Test condition summary
- ASTM compliance report
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Frequently Asked Questions
ASTM D6071 is a standard test method for determining low-level sodium concentrations in high purity water using graphite furnace atomic absorption spectroscopy, ensuring accurate trace analysis for critical applications.
ASTM D6071 is important for monitoring sodium contamination in high purity water, which can affect sensitive processes in electronics, pharmaceuticals, and power generation systems requiring ultra-clean water.
ASTM D6071 uses graphite furnace atomic absorption spectroscopy, where sodium atoms absorb specific wavelengths of light, allowing precise quantification of trace sodium concentrations in water samples.
The method requires a graphite furnace atomic absorption spectrometer, high-purity reagents, calibration standards, and contamination-free sampling equipment to ensure accurate trace-level measurements.
ASTM D6071 is used in semiconductor manufacturing, pharmaceutical production, and power plants to ensure high purity water quality by detecting and controlling trace sodium contamination levels.
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