BS ISO 7760:2001
Photography. Processing waste. Determination of hydroquinone
Photography. Processing waste. Determination of hydroquinone
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Дата публикации:
- 27 марта 2002 г.
- ICS:
- 13.030.30
- SKU:
- BS ISO 7760:2001
Abstract
1 Scope This International Standard specifies a spectrophotometric method for the determination of hydroquinone in photographic processing waste. This method can be applied to samples containing hydroquinone in the concentration range of 200 μg/l to 4 000 μg/l; aminophenols and phenylenediamines should also be determined by this method. However, sulfonated hydroquinones or products from the further oxidation of benzoquinone will not be determined.
Похожие стандарты
Другие стандарты BS
BS ISO 10835:2007
ДействующийDirect reduced iron and hot briquetted iron. Sampling and sample preparation.
1 Scope This International Standard gives a) the underlying theory, b) the basic principles for sampling and preparation of samples , and c) the basic requirements for the design, installation and op…