Reference number
ISO 7760:2001
ISO 7760:2001
© ISO 2024
International Standard
ISO 7760:2001
Photography — Processing waste — Determination of hydroquinone
Edition 2
2001-12
2001-12
ISO 7760:2001
32495
Publicado
(Edición 2, 2001)
Esta publicación se revisó y confirmó por última vez en 2021.
Por lo tanto, esta versión es la actual.
Resumen
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.
Ciclo de vida
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Anteriormente
RetiradaISO 7760:1986
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Ahora