ASTM D3712-05 (2011) rus PDF

Full title and description

ASTM D3712 − 05 (Reapproved 2011) — Standard Test Method of Analysis of Oil‑Soluble Petroleum Sulfonates by Liquid Chromatography. The method describes chromatographic and preparative procedures used to separate and quantify oil, sodium sulfonate, inorganic salts, water, acidity/basicity and related parameters in refined and crude oil‑soluble sulfonate products. A Russian translation/version is commonly distributed by secondary standards vendors.

Abstract

This test method provides a stepwise analytical procedure using adsorption, solvent extraction and liquid chromatography to characterize oil‑soluble petroleum sulfonates (including sodium, calcium, barium, magnesium and ammonium sulfonates). It is intended for quality control, product characterization and specification verification of sulfonate surfactant products used in petroleum and lubricant applications.

General information

• Status: Designation D3712 − 05 (Reapproved 2011); listed by some sources as withdrawn or superseded — consult ASTM International for the definitive current status.
• Publication date: Reapproved 2011 (original adoption/revision 2005; reapproval effective 2011).
• Publisher: ASTM International (ASTM).
• ICS / categories: Petroleum products in general — ICS code commonly associated with this method: 75.080 (petroleum products).
• Edition / version: D3712‑05 (Reapproved 2011).
• Number of pages: Approximately 6 pages (short test method).

Scope

The method covers analysis of refined and crude natural and synthetic oil‑soluble sulfonate products. It details sample preparation and conversion steps (for example conversion of various metal sulfonates to their sodium form), adsorption and column procedures (silica gel separation), solvent extraction, and chromatographic separation to determine percent mineral oil, percent sodium sulfonate, inorganic salts content, water content, acidity/basicity, average molecular weight and relative density of sodium sulfonate fractions. The procedure includes recommended reagents, column packing and safety notes for volatile/flammable solvents used.

Key topics and requirements

• Chromatographic separation of oil and sulfonate fractions (silica gel column technique).
• Conversion procedures for calcium, barium, magnesium and ammonium sulfonates to appropriate forms for analysis.
• Solvent extraction and evaporation steps to determine mineral oil and sulfonate mass fractions.
• Determination and reporting of inorganic salts, water content, acidity/basicity and average molecular weight of sulfonate materials.
• Specification of reagents, indicator solutions and safety warnings for hazardous solvents (chloroform, ether, alcohols, etc.).
• Calculation formulas and reporting conventions for expressing results as mass percent and relative densities.

Typical use and users

Used by petrochemical and lubricant additive manufacturers, quality control laboratories, third‑party analytical/service labs, procurement/specifications engineers and R&D groups that formulate or evaluate oil‑soluble sulfonate surfactants and corrosion/inhibitor additives. Typical applications include batch release testing, troubleshooting manufacturing or blending issues, and verification of supplier material declarations.

Related standards

This method is one of many petroleum/test methods in ASTM Book of Standards Volume covering petroleum products and surfactant/additive analyses (Volume covering D3712–D6122 test methods). Related ASTM test methods and specifications govern chromatographic techniques, petroleum product properties and surfactant testing; consult the ASTM Volume for adjacent methods and any current replacements or cross‑references.

Keywords

petroleum sulfonates, oil‑soluble sulfonates, liquid chromatography, silica gel column, sodium sulfonate, mineral oil, surfactant analysis, inorganic salts, acidity/basicity, average molecular weight.

FAQ

Q: What is this standard?

A: ASTM D3712‑05 (reapproved 2011) is a test method for analysis of oil‑soluble petroleum sulfonates using adsorption, solvent extraction and liquid chromatography techniques to separate and quantify oil and sulfonate fractions.

Q: What does it cover?

A: It covers sample preparation, conversion of metal sulfonates, silica gel adsorption/column separation, solvent extraction, chromatographic separation and calculations to report mineral oil, sodium sulfonate, inorganic salts, water, acidity/basicity and average molecular weight of sulfonate products.

Q: Who typically uses it?

A: QC and analytical laboratories in the petroleum, lubricant additive and surfactant industries; manufacturers, suppliers and purchasers who need to characterize or verify oil‑soluble sulfonate products.

Q: Is it current or superseded?

A: The document is D3712‑05 (reapproved 2011). Several secondary sources note the designation as withdrawn or superseded; users should verify the definitive current status and any replacement method directly with ASTM International before use in contractual or regulatory situations.

Q: Is it part of a series?

A: It is part of the suite of ASTM petroleum and lubricant test methods (the set of standards cataloged in the ASTM Book of Standards covering petroleum products and additives); related test methods for chromatographic and surfactant analyses are grouped in the same volume.

Q: What are the key keywords?

A: Petroleum sulfonates, oil‑soluble sulfonates, liquid chromatography, silica gel, surfactant analysis, mineral oil, sodium sulfonate, inorganic salts.