ISO 10337-1997 rus PDF

Full title and description

ISO 10337:1997 — Crude petroleum — Determination of water — Coulometric Karl Fischer titration method. This International Standard specifies a coulometric Karl Fischer titration procedure for determining the water content of crude petroleum. The official ISO publication is available in English and French (PDF and paper). Russian-language copies or translations may be available from national standards bodies or commercial resellers, but ISO's official languages for this document are English and French.

Abstract

ISO 10337:1997 defines a laboratory method using coulometric Karl Fischer titration to measure water content in crude petroleum. The method covers required apparatus and reagents, sample handling and preparation, measurement procedure (direct and with vaporization accessories where applicable), calculation and expression of results, precision/accuracy statements and test-reporting requirements. It is intended for routine quality-control and analytical laboratory use in the petroleum sector.

General information

• Status: Published (International Standard; last confirmed 27 March 2025)
• Publication date: 25 December 1997 (Edition 1)
• Publisher: International Organization for Standardization (ISO)
• ICS / categories: 75.040 — Crude petroleum
• Edition / version: Edition 1 (1997)
• Number of pages: 12

Scope

This standard specifies the coulometric Karl Fischer titration technique for the determination of water in crude petroleum samples. It applies to routine laboratory determinations where the sample matrix and expected water concentrations are compatible with coulometric KF procedures. The standard covers apparatus, reagents, sampling and sample preparation, stepwise test procedures (including vaporization/oven accessories where needed), calculation of results and requirements for reporting. It is not intended to replace other methods where specific sample types or concentration ranges require alternative techniques.

Key topics and requirements

• Principle of coulometric Karl Fischer titration for water determination in hydrocarbons.
• Required apparatus and cell configuration (coulometric generator electrode, titration cell, electrodes, vaporizer/oven accessories where applicable).
• Reagents and purity requirements for Karl Fischer reagents and solvents.
• Sampling, sample handling and preparation to avoid loss or gain of moisture.
• Test procedures: direct injection and use of vaporization/oven accessories for difficult matrices.
• Calculation and expression of water content (mass/mass or mass/volume as applicable).
• Precision, accuracy and reporting requirements; quality‑control checks and blank corrections.
• Test-report content: sample identification, method variant/procedure, sample size, reagent details, measured values and units, uncertainty where applicable.

Typical use and users

Used by analytical and quality-control laboratories in the oil and gas industry, refineries, petrochemical plants, third‑party testing laboratories and equipment manufacturers. Typical applications include routine monitoring of water in crude oil receipts and storage, laboratory testing for custody transfer checks, and troubleshooting water contamination or dehydration processes.

Related standards

Standards and methods commonly referenced alongside ISO 10337 include ISO 9029 (distillation method for water in crude petroleum), ISO 3675 (density — hydrometer method) and other petroleum water-determination standards and industry test methods (for example, ASTM D6304 for coulometric Karl Fischer water determination and various UOP methods for vaporization/extraction accessories). Users should select the method appropriate to the sample type, concentration range and contractual requirements.

Keywords

ISO 10337, crude petroleum, water determination, moisture analysis, Karl Fischer, coulometric titration, petroleum laboratory, quality control, moisture content, oil analysis.

FAQ

Q: What is this standard?

A: ISO 10337:1997 is an International Standard that specifies a coulometric Karl Fischer titration method for determining the water content of crude petroleum.

Q: What does it cover?

A: It covers principle, apparatus, reagents, sampling and sample preparation, detailed test procedures (including options for vaporization/oven accessories), calculation and expression of results, precision/accuracy statements and test-reporting requirements.

Q: Who typically uses it?

A: Analytical and QC laboratories in the petroleum and petrochemical industries, refineries, third‑party testing labs, and equipment suppliers/manufacturers performing water-in-oil analyses.

Q: Is it current or superseded?

A: The edition was published on 25 December 1997 (Edition 1). The ISO catalogue shows the publication as confirmed and still current; the document was last confirmed in 2025. Check your national standards body or ISO catalogue for any later revisions or national adoptions.

Q: Is it part of a series?

A: It is one of several ISO methods for water determination in crude petroleum and petroleum products; related methods include the distillation method (ISO 9029) and other petroleum test standards addressing density, sediment, and related laboratory analyses.

Q: What are the key keywords?

A: Crude petroleum, water determination, Karl Fischer, coulometric titration, moisture, petroleum analysis, ISO 10337.