RD 24.032.01-91 PDF

Full title and description

РД 24.032.01-91 — Методические указания. Нормы качества питательной воды и пара, организация водно‑химического режима и химического контроля паровых стационарных котлов‑утилизаторов и энерготехнологических котлов. English (informal) title: Guidance on feedwater and steam quality, water‑chemical regime organization and chemical control for stationary steam waste‑heat and process boilers.

Abstract

These methodological guidelines establish recommended quality limits for boiler feedwater and steam, define requirements and recommendations for organising the water‑chemical regime and the chemical monitoring (sampling and analytical methods) for stationary steam waste‑heat boilers and process (energy‑technology) boilers up to specified pressure classes. The document contains limit tables, recommended control procedures and laboratory analysis methods for key indicators (hardness, dissolved oxygen, silica, alkalinity, phosphates, iron, pH, etc.).

General information

• Status: In force (document introduced and used as a recommended guidance for manufacturers, designers and operators; listed as действующий in technical registries).
• Publication date: Introduced 01 July 1991 (date of entry into force). Printed edition issued in Moscow in 1993.
• Publisher: Approved by the Ministry of Heavy Machinery (Минтяжмаш СССР); developed and published by NPO TsKTI (ЦКТИ) / NPO TsKTI im. I.I. Polzunova (printed edition).
• ICS / categories: Boiler and steam engineering; industrial water treatment and chemical control for power/thermal equipment (sectoral classification: РД series 24 — documents for heavy, power and transport engineering). (OKSTU reference: ОКСТУ 3102 as recorded in document metadata).
• Edition / version: Original document designation 1991 (РД 24.032.01‑91); commonly cited printed edition 1993.
• Number of pages: Approximately 63 pages (printed edition).

Scope

Applies to stationary steam waste‑heat (утилизатор) and energy‑technology boilers with working steam pressure up to 4 MPa (for existing boilers up to 5 MPa) and includes reference values for boilers with higher rated pressures in separate clauses. The guidance is intended for boiler designers, manufacturers, plant operators and organisations performing chemical control and laboratory analysis of boiler feedwater and steam. It replaces several earlier OST/RTM documents and provides recommended (not mandatory) norms and procedures for water‑chemical regimes and monitoring.

Key topics and requirements

• Normative quality limits for feedwater and steam by pressure class (limits for conductivity/salt content, sodium, silica, dissolved oxygen, iron, pH, residuals and other indicators).
• Organisation of the water‑chemical regime: recommended chemical conditioning programs (deaeration, alkalisation, phosphate treatment, oxygen scavengers, etc.) and control of blowdown.
• Chemical control: sampling rules, frequency of measurements, responsibilities and record keeping for routine and upset conditions.
• Analytical methods: titrimetric and instrumental methods for hardness, phosphate, silica, dissolved oxygen, iron, alkalinity and pH with procedural notes and reagent recommendations (includes laboratory method descriptions and sensitivity ranges).
• Recommendations for troubleshooting: corrective actions for scale formation, corrosion, foaming and carryover; acceptance criteria for steam purity for industrial uses.
• Annexes / appendices with example tables, charts and sample preparation/handling procedures used by operating organisations and laboratories.

Typical use and users

Used by boiler manufacturers, design institutes, chemical water‑treatment specialists, power plant and industrial boilerhouse operators, maintenance engineers, and testing laboratories responsible for routine chemical control and preventive maintenance. Also referenced by regulatory and inspection bodies when assessing water‑chemical regimes for safety and reliability.

Related standards

Commonly paired with other sectoral RDs and OSTs, for example: РД 24.031.120‑91 (network and make‑up water for hot‑water boilers), РД 24.031.121‑91 (sampling devices for steam and water), and later technical rules and safety regulations for boilers and steam systems. The document was issued in replacement of several older OST/RTM references and is frequently cited in technical specifications and boiler operation manuals.

Keywords

boiler feedwater, steam quality, water‑chemical regime, chemical control, phosphate treatment, silica, dissolved oxygen, hardness, alkalinity, boiler sampling, steam carryover, boiler corrosion, RD 24.032.01-91.

FAQ

Q: What is this standard?

A: It is a sectoral methodological guidance (РД) titled РД 24.032.01‑91 that sets recommended norms for feedwater and steam quality and prescribes organisation and methods for water‑chemical control of stationary steam waste‑heat and process boilers.

Q: What does it cover?

A: It covers quality limits by pressure class, chemical treatment programmes, sampling and laboratory analysis methods, recommended monitoring frequencies, and corrective actions for common boiler water problems (scale, corrosion, foaming and carryover).

Q: Who typically uses it?

A: Boiler manufacturers, designers, plant operators, water‑treatment engineers, laboratory personnel and regulatory/inspection organisations involved with stationary steam boilers and their safe, efficient operation.

Q: Is it current or superseded?

A: The document was introduced 01 July 1991 and is recorded in technical registries as действующий (in force) as a recommended guidance; however, users should verify whether newer sectoral norms, regulatory requirements or corporate standards have since supplemented or replaced specific provisions for their jurisdiction or equipment. Always check the latest regulatory register or the issuing organisation for updates.

Q: Is it part of a series?

A: Yes — it belongs to the RD 24 series of sectoral guidance documents for heavy, energy and transport engineering; it is used alongside related RDs (for example, РД 24.031.120‑91 and РД 24.031.121‑91) and other OST/RTM documents replaced or supplemented by these RDs.

Q: What are the key keywords?

A: Boiler feedwater, steam purity, water‑chemical regime, chemical control, sampling, phosphate treatment, silica control, dissolved oxygen, hardness, pH.