SIST ISO 6703-2:1996 PDF
Water quality -- Determination of cyanide -- Part 2: Determination of easily liberatable cyanide
Water quality -- Determination of cyanide -- Part 2: Determination of easily liberatable cyanide
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 11
- Дата публикации:
- 1 июня 1996 г.
- ICS:
- 13.060.50
- Технический комитет:
- KAV - Water quality
The three methods specified are applicable to water containing less than 50 mg per litre and less than 100 mg of total cyanide per litre, but higher concentrations may be determined by suitable dilution of the sample. The methods suitable and corresponding ranges are as follows: photometric method with pyridine/barbituric acid: 0,002 to 0,025 mg; titrimetric method using the tyndall effect: > 0,005 mg; titrimetric method using an indicator: > 0,05 mg. Ions and compounds interfering with the determination are listed in table 1.
Abstract
Overview - ISO 6703-2:1984 (Water quality - Easily liberatable cyanide)
ISO 6703-2:1984 specifies procedures for the determination of easily liberatable cyanide in water. The part covers liberation of hydrogen cyanide (HCN) from a sample by acidification and metal-assisted reduction, entrainment by a carrier gas, and absorption into alkaline solution, followed by one of three quantitative analytical methods. It is applicable to natural waters, municipal sewage and industrial effluents and is intended for routine monitoring and process control in water and wastewater treatment.
Key topics and technical requirements
- Scope and limits
- Applicable to samples with
Технические детали
- SKU
- SIST ISO 6703-2:1996
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