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D4079-00 – Standard Test Method Technical Guide
ASTM D4079-00 (Reapproved 2022) is a standard specification that establishes requirements for vapor-degreasing grade methylene chloride, widely used in industrial cleaning. This standard ensures consistent quality through defined properties and test methods, with an emphasis on safety and regulatory compliance.
🔍 Standard Scope and Overview
Section 1 defines the scope as covering vapor-degreasing grade methylene chloride. Values are stated in SI units, and the standard references Guide D3844 and Practice D4276 for additional safety guidance. It also follows international standardization principles per the WTO TBT Committee Note in 1.4, with ASTM Committee D26 overseeing the document.
📊 Key Properties and Test Methods
Per Section 3, the solvent must conform to property requirements detailed in Table 1. These properties are verified using the following ASTM test methods from Section 2:
| 🟦📏 Property | 🔬 Test Method |
|---|---|
| Distillation Range | D1078 |
| Color (Platinum-Cobalt Scale) | D2108 |
| Nonvolatile Matter | D2109 |
| Specific Gravity and Density | D2111 |
| Total Acid Acceptance | D2942 |
| Acidity-Alkalinity | D2989 |
| Water Content | D3401 |
| Appearance of Admixtures | D3741 |
These methods cover purity, stability, and physical traits essential for vapor degreasing. The standard also notes additional resources like MNL22 and Practice D4276 for operational guidance.
⚙️ Packaging and Regulatory Compliance
Section 4 mandates that industrial or commercial quantities be packaged and labeled according to DOT regulations (49 CFR Parts 100-199), state/local rules, and OSHA Hazard Communication (29 CFR 1910.1200). The table below summarizes these obligations.
| 📜 Regulation | 🎯 Requirement |
|---|---|
| 49 CFR Parts 100–199 | Hazardous materials transport and packaging |
| 29 CFR 1910.1200 | Hazard communication and labeling |
⚠️ Critical: Consult Guide D3844 and Practice D4276 for safety protocols in vapor degreasing and confined space entry. Noncompliance can lead to severe hazards.
💡 Always verify referenced standard versions via ASTM’s website for the latest updates and limits.
❓ Frequently Asked Questions
🔍 What is the main purpose of ASTM D4079? It defines quality criteria for methylene chloride used in vapor degreasing, ensuring effective performance and safety.
💡 How is acidity tested in this standard? Acidity-alkalinity is measured using Test Method D2989, with total acid acceptance per D2942.
⚡ What labeling rules apply to packaging? Industrial containers must comply with OSHA Hazard Communication (29 CFR 1910.1200) and DOT labeling in 49 CFR Parts 100–199.
📌 What are the keywords for this standard? Keywords include dichloromethane, methylene chloride, and vapor-degreasing solvent as listed in Section 5.