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D5854-19 – Standard Test Method Technical Guide
📐 Scope and Applicability
ASTM D5854-19a (MPMS Chapter 8.3) specifies procedures for mixing and handling liquid samples of petroleum and petroleum products to ensure representative sampling for analysis. This practice covers the conditioning of samples from the primary sample container to the analytical apparatus or intermediate containers. It applies to various petroleum products, including crude oils and volatile liquids.
The standard references key sampling practices such as D4057 (API MPMS Chapter 8.1) for manual sampling and D4177 (API MPMS Chapter 8.2) for automatic sampling. Users are advised to perform tests in D4177 before applying this practice. Safety concerns are addressed, and users must establish appropriate health and environmental practices.
💡 Tip: Always review the appendices in D5854-19a for detailed guidance on specific applications, such as water in crude oil acceptance testing (Appendix X2) and mixing procedures (Appendix X4).
⚙️ Mixing and Handling Procedures
The standard outlines critical mixing and handling procedures to ensure sample homogeneity. Proper mixing is essential for accurate determination of properties such as water content and sediment. The appendices provide detailed background and procedures:
| 🟦 Appendix | 📏 Description |
|---|---|
| X1 | Background on development of Table 1 for performance testing |
| X2 | Guidance on acceptance testing for water in crude oil |
| X3 | Guide for materials of sample containers |
| X4 | Summary of recommended mixing procedures |
| X5 | Flow chart for sample container/mixing system acceptance test |
For aviation fuels, Practice D4306 provides additional container requirements. The standard emphasizes adherence to safety protocols from API publications such as API 2003 for static ignition prevention.
⚠️ Warning: Inadequate mixing can lead to significant errors in water content measurement. Follow the recommended procedures in Appendix X4 for optimal results.
📊 Key Requirements and References
D5854-19a is part of the API Manual of Petroleum Measurement Standards (MPMS). It integrates with other MPMS chapters for comprehensive sample management. The key referenced standards include:
| 📐 Standard | 🎯 Application |
|---|---|
| D3700 | Obtaining LPG Samples Using a Floating Piston Cylinder |
| D4057 | Manual Sampling of Petroleum Products |
| D4177 | Automatic Sampling of Petroleum Products |
| D4306 | Aviation Fuel Sample Containers for Trace Contamination |
| D5842 | Sampling and Handling of Fuels for Volatility Measurement |
| D8009 | Manual Piston Cylinder Sampling for Volatile Crude Oils |
This standard was approved in 2019 and is in accordance with WTO TBT principles. It is the responsibility of the user to comply with all safety regulations, including OSHA standards for toxic and hazardous substances.
❓ Frequently Asked Questions
🔍 What is the scope of ASTM D5854-19a?
The standard covers mixing and handling procedures for liquid petroleum samples to ensure representative delivery from primary containers to analytical apparatus or intermediate containers.
💡 How does this practice relate to other API MPMS standards?
It is Chapter 8.3 of the API MPMS, complementing Chapters 8.1 (manual sampling) and 8.2 (automatic sampling). It also references Chapter 10 for sediment and water.
⚡ What are the key considerations for mixing samples?
Proper mixing is critical for homogeneity. Appendix X4 provides recommended procedures, and Appendix X2 offers guidance for water in crude oil testing.
📌 Where can I find guidance on sample container materials?
Appendix X3 provides a guide for materials of sample containers to prevent contamination and ensure compatibility with petroleum products.