ISO 18611-1:2014 PDF
Ships and marine technology — Marine NOx reduction agent AUS 40 — Part 1: Quality requirements
Ships and marine technology — Marine NOx reduction agent AUS 40 — Part 1: Quality requirements
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 6
- Дата публикации:
- 23 сентября 2014 г.
- Издание:
- ISO IS 18611 edition 1 version 1
- ICS:
- 13.020.99
ISO 18611-1:2014 specifies the quality characteristics of the marine NOx reduction agent, aqueous urea solution at 40 % concentration (AUS 40), which is needed to operate so-called SCR (selective catalytic reduction) converters. In marine applications, for example, for engine exhaust gas treatment, SCR converters are particularly suitable for selectively reducing the nitrogen oxide (NOx) emissions of internal combustion engines and boilers. This International Standard is covering quality requirements and guidelines for AUS 40 for marine applications, irrespective of manufacturing method or technique. In the remaining parts of ISO 18611, the term "NOx reduction agent" will be abbreviated to "AUS 40".
Abstract
Overview
ISO 18611-1:2014 specifies the quality requirements for AUS 40, the aqueous urea solution (40 % m/m) used as a marine NOx reduction agent in Selective Catalytic Reduction (SCR) systems. The standard defines required chemical and physical characteristics, testing and monitoring obligations for manufacturers, and marking requirements to ensure reliable and stable operation of SCR converters on ships and marine installations.
Key topics and technical requirements
- Designation: Product shall be designated AUS 40 ISO 18611.
- Urea content: 39–41 % (m/m), target value 40 %.
- Physical properties:
- Density at 20 °C: 1105–1177 kg/m³ (target ~1110 kg/m³).
- Refractive index at 20 °C: 1.3947–1.3982 (target ~1.3965).
- Appearance: colourless clear liquid; incipient crystallization at 0 °C; pH
Технические детали
- Технический комитет
- ISO/TC 8/SC 2 - Marine environment protection
- SKU
- ISO 18611-1:2014
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