ASTM E806 High-Temperature Thermocouple Performance Testing
ASTM E806 – 08 determines the concentrations of carbon tetrachloride (CCl4) and chloroform (CHCl3) in liquid chlorine. The sample size and instrument are used to determine the lower limit of detection. The values expressed in SI units are considered standard.
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- Overview
- Scope, Applications, and Benefits
- Test Process
- Specifications
- Instrumentation
- Results and Deliverables
Overview
ASTM E 806 Carbon Tetrachloride and Chloroform testing is a standardized gas chromatography test procedure for the analysis of the concentration of impurities in the form of carbon tetrachloride and chloroform in liquid chlorine through direct injection analysis. The ASTM E 806 test procedure outlines the conditions and requirements for the analysis of the concentration of impurities in the form of carbon tetrachloride and chloroform in liquid chlorine through direct injection analysis and gas chromatography. This test procedure is critical to chemical manufacturers, chlorine producers, and analytical chemists.
Scope, Applications, and Benefits
Scope
ASTM E 806 is a standard method for determining the concentrations of carbon tetrachloride and chloroform in liquid chlorine by directly injecting a known quantity of liquid chlorine into a gas chromatographic system to detect impurities relative to known concentrations of reference materials.
ASTM E 806 testing evaluates:
- Carbon tetrachloride concentration in liquid chlorine by direct injection gas chromatography
- Chloroform concentration in liquid chlorine under defined GC analytical conditions
- Comparative impurity levels across liquid chlorine production batches and supply sources
- Effect of chlorine production process and feedstock on carbon tetrachloride and chloroform content
- Compliance against defined maximum impurity concentration limits for liquid chlorine specifications
Applications
- Liquid chlorine production facilities require a carbon tetrachloride and chloroform purity assessment
- Chemical manufacturing operations using liquid chlorine require impurity content verification
- Water treatment chemical supply programs requiring liquid chlorine purity data
- Chlorine trading and commercial transaction impurity content verification programs
- Analytical laboratories requiring ASTM E 806 liquid chlorine impurity test data
Benefits
- Provides reliable carbon tetrachloride and chloroform impurity data for liquid chlorine assessment
- Supports liquid chlorine specification compliance and supplier assessment programs
- Identifies impurity exceedances in liquid chlorine before chemical processing operations
- Delivers traceable impurity concentration test records for commercial and engineering submissions
- Reduces process risk by verifying liquid chlorine impurity content early in the assessment cycle
Test Process
Sample Preparation
Liquid chlorine specimens collected and prepared for direct injection per ASTM E 806 requirements.
1Direct GC Injection
Defined liquid chlorine specimen directly injected into calibrated gas chromatographic system.
2Chromatographic Separation
Carbon tetrachloride and chloroform separated across GC column under defined analytical conditions.
3Data Analysis & Reporting
Impurity concentrations quantified against reference standards and assessed for test compliance result.
4Technical Specifications
| Parameter | Details |
|---|---|
| Applicable Samples | Liquid chlorine samples requiring carbon tetrachloride and chloroform impurity analysis |
| Analytical Procedure | Direct injection gas chromatography per ASTM E 806 defined conditions |
| Target Analytes | Carbon tetrachloride and chloroform impurities in liquid chlorine matrix |
| Measured Parameters | Carbon tetrachloride and chloroform concentration in liquid chlorine |
| Measured Outputs | Carbon tetrachloride and chloroform concentration values and test compliance result |
Instrumentation Used for Testing
- Calibrated gas chromatographic system with a defined column and detector configuration
- Direct injection system for liquid chlorine specimen introduction
- Certified carbon tetrachloride and chloroform reference standards for quantitative calibration
- Specialist chromatographic data acquisition and impurity quantification software
- Liquid chlorine sample handling and containment equipment for safe specimen preparation
- Data reporting and chromatographic peak visualization system
Results and Deliverables
- Gas chromatographic separation data and impurity peak identification for all analyzed specimens
- Quantitative carbon tetrachloride and chloroform concentration results per ASTM E 806
- Statistical summary of impurity concentration results across the liquid chlorine sample set
- Test compliance result assessed against the defined liquid chlorine impurity specification requirements
- ASTM E 806 test report for product purity assessment, process control, and supplier assessment submissions
Frequently Asked Questions
ASTM E806-08 measures the amounts of carbon tetrachloride and chloroform in liquid chlorine using gas chromatography. This method helps assess purity and find impurities that could impact industrial processes and product quality.
Impurities like carbon tetrachloride and chloroform can impact chemical reactions, equipment performance, and product quality. ASTM E806-08 helps make sure chlorine meets purity standards for safe industrial use.
ASTM E806-08 uses a direct injection gas chromatographic method. Liquid chlorine samples go into the instrument, which separates and quantifies specific impurity compounds.
ASTM E806-08 is used in chemical manufacturing, water treatment, and industrial processing sectors where liquid chlorine is used and impurity levels must be controlled.
ASTM E806-08 focuses on specific impurities and may miss some contaminants. Additional analytical methods are needed to fully evaluate the purity and composition of liquid chlorine.
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