ISO 13900-1997 PDF

Full title and description

ISO 13900:1997 — Steel — Determination of boron content — Curcumin spectrophotometric method after distillation. This International Standard specifies a laboratory procedure for the determination of low levels of boron in steel by distillation followed by a curcumin-based spectrophotometric measurement.

Abstract

ISO 13900:1997 defines a chemical-analytical method for measuring boron in steel. The procedure uses acid digestion and distillation to isolate boron, reaction with curcumin to form a colored complex, and spectrophotometric measurement to quantify boron at trace concentrations. The method is intended for low-level boron determinations in steels and gives guidance on sample preparation, calibration, precision and applicable concentration range.

General information

• Status: Published (International Standard; confirmed in systematic review cycles).
• Publication date: 21 August 1997 (published edition 1, 1997).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 77.080.20 — Steels.
• Edition / version: Edition 1 (1997).
• Number of pages: 10.

Key bibliographic and lifecycle details (status, date, ICS and page count) are recorded in ISO metadata and commercial standards catalogues. The ISO record shows the standard as confirmed in recent systematic reviews, leaving the 1997 edition current.

Scope

This standard specifies a curcumin spectrophotometric method, performed after distillation, for the determination of boron in steel. It applies to the determination of boron at trace levels (the method range covers very low mass fractions of boron) and is intended for routine laboratory use where distillation and colorimetric/spectrophotometric techniques are appropriate. Limitations, interferences and recommended quality controls are given in the standard text.

Key topics and requirements

• Sample preparation: acid digestion and conversion of sample to a form suitable for distillation.
• Distillation step to separate boron from matrix interferences before color development.
• Reaction with curcumin to form a colored boron–curcumin complex suitable for photometric measurement.
• Spectrophotometric measurement and calibration to determine boron concentration in the specified low range.
• Precision, detection limits, blank controls and recommended procedures to minimize contamination and interferences.
• Reporting requirements and example calculation methods for expressing results as mass fraction (m/m).

Typical use and users

Primary users are metallurgical and chemical testing laboratories, steel producers, quality-control laboratories, and standardization bodies concerned with trace analysis of alloying and impurity elements in steels. The method is used where trace boron levels must be quantified for production control, specification compliance or materials characterization.

Related standards

Related documents include other ISO standards and national methods covering chemical analysis of steels and alternative analytical techniques for boron determination. The technical committee responsible is ISO/TC 17/SC 1 (methods of determination of chemical composition of steels), which maintains related analytical standards and guidance. Users may also consult national laboratory methods and other ISO chemical-analysis standards for complementary procedures.

Keywords

boron; steel; curcumin; spectrophotometry; distillation; trace analysis; chemical analysis; ISO 13900.

FAQ

Q: What is this standard?

A: ISO 13900:1997 is an International Standard that specifies a curcumin spectrophotometric method, after distillation, for the determination of boron content in steel.

Q: What does it cover?

A: It covers sample preparation, distillation to isolate boron, formation of the boron–curcumin complex and spectrophotometric measurement, including calibration, precision and reporting for low-level boron determinations in steel.

Q: Who typically uses it?

A: Metallurgical laboratories, steel manufacturers, third-party testing houses and quality assurance personnel who need to measure trace boron in steel samples.

Q: Is it current or superseded?

A: The 1997 edition is recorded as the published International Standard and has been confirmed in ISO's review process (most recently confirmed in systematic review cycles). As of the latest ISO metadata, the 1997 edition remains the current published version. Users should check national and ISO records for any later amendments or replacements before use.

Q: Is it part of a series?

A: It is one of a set of ISO documents produced under ISO/TC 17/SC 1 that address methods for chemical analysis of steel; it is not itself numbered as a multi‑part series but sits among related ISO methods for elemental determination in metals.

Q: What are the key keywords?

A: Boron, steel, curcumin, spectrophotometry, distillation, trace analysis, chemical analysis, ISO 13900.