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D4175-24 – Standard Test Method Technical Guide
ASTM D4175-24 is a comprehensive terminology standard for petroleum products, liquid fuels, and lubricants, developed by Committee D02. This article explores its scope, key terms, and structure.
📘 Scope and Structure
The standard covers terminology unique to petroleum, petroleum products, lubricants, and products from biomass and chemical synthesis. It includes definitions from various D02 standards, compiled annually. Terms are listed alphabetically with attributions to subcommittees and source standards.
| 🟦 Component | 📏 Description |
|---|---|
| Scope | Petroleum products, liquid fuels, lubricants |
| Source | Definitions from Committee D02 standards |
| Compilation | Annual program in early Fall |
🔍 Key Terminology Examples
Below are examples of terms defined in D4175-24, showing their definitions and jurisdictional attributes.
| 🟦 Term | 📏 Definition | 🎯 Subcommittee | ⚡ Standard |
|---|---|---|---|
| 1,3-butadiene | Hydrocarbon product containing more than 99% 1,3-butadiene | D02.D0 | D5274 |
| Abrasion | Wear by displacement of material caused by hard particles or hard protuberances | D02.96 | D7684, D7690 |
| Abrasive wear | Wear due to hard particles or hard protuberances forced against and moving along a solid surface | D02.B0; D02.L0 | D4998; D5182 |
Absorbance has multiple definitions based on context:
| 🟦 Context | 📏 Definition | 📐 Source |
|---|---|---|
| Radiant energy | log10(1/T) for molecular property | D02.14 D7996 |
| Radiant power | log10(1/T) for molecular property | D02.04 D2008 |
📋 Attribution and Jurisdiction
Each term includes an attribute pointing to its originating subcommittee and standard. Terms without attributes are under Subcommittee CS95. For instance, “abrasion” is attributed to D02.96 with standards D7684 and D7690.
Note: The compilation program runs annually in early Fall, gathering terms from published D02 standards. This ensures up-to-date terminology.
Tip: Always refer to the attributed standard for complete context when using a term from D4175.
❓ Frequently Asked Questions
🔍 What is the scope of D4175-24?
It covers terminology for petroleum products, liquid fuels, and lubricants, including biomass and chemical synthesis products, as developed by Committee D02.
💡 How are the terms compiled?
Terms are automatically extracted from the Definitions section of each D02 standard via an annual program, typically run in early Fall.
⚡ What do the attributes like [D02.96] signify?
They indicate the subcommittee jurisdiction and source standard. For example, [D02.96] D7684 means Subcommittee D02.96 and standard D7684.
📌 Are all D02 definitions included?
No, “Definitions Specific to This Standard” in individual D02 documents are excluded from D4175.