Physical Address
304 North Cardinal St.
Dorchester Center, MA 02124
D3193-24 – Standard Test Method Technical Guide
ASTM D3193-24 provides the standard specification for ethylbenzene, a critical industrial chemical primarily used as an intermediate in the production of styrene monomer. Under the jurisdiction of Committee D16, this standard received its latest revision in 2024.
⚗️ Scope and Referenced Documents
This specification covers the compositional and quality requirements for ethylbenzene. For determining conformance, observed or calculated values must be rounded “to the nearest unit” in the last right-hand digit of the specification limit, according to Practice E29. Values stated in SI units are regarded as the standard. The standard strongly emphasizes safety, explicitly requiring users to consult current OSHA regulations (29 CFR 1910.1000 and 1910.1200), the supplier’s Safety Data Sheet (SDS), and all applicable local regulations. Key referenced ASTM standards guide the required analytical testing and proper handling of the material.
Always consult the latest edition of the standard and the safety data sheet. The user assumes responsibility for establishing safe handling practices.
📊 Property Requirements and Test Methods
The core technical requirements of D3193-24 establish strict limits on purity and key aromatic impurities. The table below summarizes these specifications and the ASTM methods required for their verification.
| 🟦 Property | 📏 Specification | 🎯 ASTM Test Method |
|---|---|---|
| Purity, min, weight % | 99.00 | D5060 or D7504 |
| Benzene, max, weight % | 0.1 | D5060 or D7504 |
| Toluene, max, weight % | 0.4 | D5060 or D7504 |
| Xylenes, max, weight % | 0.4 | D5060 or D7504 |
🧪 Analytical Procedures and Quality Assurance
Conformance to the ethylbenzene specification relies on a battery of well-defined analytical methods. These range from gas chromatography for impurities to specialized techniques for trace elements and physical properties.
| ⚡ Test Method | 🔍 Analytical Purpose |
|---|---|
| D5060 / D7504 | Determination of impurities by Gas Chromatography |
| D5386 / D8005 | Color of liquids (Tristimulus / Platinum-Cobalt Scale) |
| D5194 / D5808 / D7536 | Trace chloride analysis in aromatics |
| D7183 | Total sulfur determination by UV fluorescence |
| D7359 | Total F, Cl, S by Combustion Ion Chromatography (CIC) |
| E2680 | Visual inspection procedure (appearance) |
| D3437 | Standard practice for sampling and handling |
Ensure all measurement values used to determine conformance are properly rounded to the nearest unit in the last right-hand digit as defined by the specification limit (Practice E29).
❓ Frequently Asked Questions
🔍 What is the minimum purity standard for ethylbenzene per D3193-24? The specification mandates a minimum purity of 99.00 weight percent.
💡 What test methods are specified for verifying purity and impurity levels? Purity, benzene, toluene, and xylene content are determined using ASTM D5060 or D7504, both of which employ Gas Chromatography.
⚡ How should specification results be evaluated for conformance? The standard stipulates that all observed or calculated values must be rounded “to the nearest unit” in the last right-hand digit used in the specification limit, as per Practice E29.
📌 What safety regulations are cited in the standard? Users must comply with current OSHA regulations (29 CFR 1910.1000 and 1910.1200) and review the supplier’s Safety Data Sheet and local regulations.