13.030.30;37.040.30 标准查询与下载

BS ISO 7766:2003 摄影冲洗废液.氰化物分析.用光谱法测定六氰基高铁酸盐(Ⅱ)和六氰基高铁酸盐(Ⅲ)

This International Standard establishes a test method for the determination of hexacyanoferrate (II) (ferrocyanide) and hexacyanoferrate (III) (ferricyanide), referred to hereafter as Fe (CN)6, in photographic processing effluents. Results are reported as hexacyanoferrate, Fe (CN)6. note: 1) Significant levels of thiosulfate (hypo) can result in interference. Significant levels of thiosulfate in processing-machine effluents result in oxidation of the thiosulfate by iron (III). Sulfur will form, increasing the spectrophotometric absorbance which is measured. Also, thiosulfate may deplete the added iron (III) leaving nothing for the colour reaction. The method is applicable to effluents from buildings where the thiosulfate would be diluted by the rest of the building wastes and this would eliminate the interference.

Processing photographic wastes - Analysis of cyanides - Determination of hexacyanoferrate(II) and hexacyanoferrate(III) by spectrometry

ISO 7766:2003 摄影冲洗废液.氰化物分析.用光谱法测定六氰基高铁酸盐(Ⅱ)和六氰基高铁酸盐(Ⅲ)

This International Standard establishes a test method for the determination of hexacyanoferrate (II) (ferrocyanide) and hexacyanoferrate (III) (ferricyanide), referred to hereafter as Fe (CN)6, in photographic processing effluents. Results are reported as hexacyanoferrate, Fe (CN)6. note: 1) Significant levels of thiosulfate (hypo) can result in interference. Significant levels of thiosulfate in processing-machine effluents result in oxidation of the thiosulfate by iron (III). Sulfur will form, increasing the spectrophotometric absorbance which is measured. Also, thiosulfate may deplete the added iron (III) leaving nothing for the colour reaction. The method is applicable to effluents from buildings where the thiosulfate would be diluted by the rest of the building wastes and this would eliminate the interference.

Processing photographic wastes - Analysis of cyanides - Determination of hexacyanoferrate(II) and hexacyanoferrate(III) by spectrometry

KS M ISO 6849:2002 摄影.加工摄影废弃物.硼的测定

이 규격은 사진용 현상 폐액 내 붕소를 측정하기 위한 2가지 방법에 대하여 규정한다.

Photography－Processing wastes－Determination of boron

BS ISO 7760:2002 摄影.冲洗废液.对苯二酚含量的测定

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.

Photography - Processing waste - Determination of hydroquinone

BS ISO 6853:2002 摄影.冲洗废液.氨态氮含量的测定(微扩散法)

This International Standard specifies a method for the determination of ammonia and other volatile amines that can be-liberated from photographic processing wastes by strong alkali, the results being expressed in terms of nitrogen. The method is applicable for the determination of the ammonia concentration of typical photoprocessing wastes in the range of 10 mg/l to 200 mg/l of ammonia or 8 mg/l to 160 mg/l of nitrogen. Other volatile amines are determined as ammonia, but their concentrations in photoprocessing wastes are usually very low.

Photography - Processing waste - Determination of ammoniacal nitrogen (microdiffusion method)

BS ISO 6851:2002 摄影.冲洗废液.氨态氮总含量的测定(基耶达微扩散法)

This International Standard specifies a method for the determination of the total organic nitrogen, as well as any ammoniacal nitrogen, present in photographic processing wastes by the Kjeldahl method. Total Kjeldahl nitrogen can be determined in photographic processing wastes in the range of 10 mg/l to 200 mg/l as ammonia, or in the range of 8 mg/l to 160 mg/l in terms of nitrogen. If ammoniacal nitrogen (see ISO 6853) is determined separately and subtracted, the concentration of organic amino nitrogen can be established.

Photography - Processing waste - Determination of total amino nitrogen (microdiffusion Kjeldahl method)

ISO 7760:2001 摄影 冲洗废液 对苯二酚含量的测定 分光光度法

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.

Photography - Processing waste - Determination of hydroquinone

ISO 6851:2001 摄影 冲洗废液 氨态氮总含量的测定 克氏烧瓶扩散法

This International Standard specifies a method for the determination of the total organic nitrogen, as well as any ammoniacal nitrogen, present in photographic processing wastes by the Kjeldahl method. Total Kjeldahl nitrogen can be determined in photographic processing wastes in the range of 10 mg/l to 200 mg/l as ammonia, or in the range of 8 mg/l to 160 mg/l in terms of nitrogen. If ammoniacal nitrogen (see ISO 6853) is determined separately and subtracted, the concentration of organic amino nitrogen can be established.

Photography - Processing waste - Determination of total amino nitrogen (microdiffusion Kjeldahl method)

ISO 6853:2001 摄影 冲洗废液 氨态氮的测定(微扩散法)

This International Standard specifies a method for the determination of ammonia and other volatile amines that can be-liberated from photographic processing wastes by strong alkali, the results being expressed in terms of nitrogen. The method is applicable for the determination of the ammonia concentration of typical photoprocessing wastes in the range of 10 mg/l to 200 mg/l of ammonia or 8 mg/l to 160 mg/l of nitrogen. Other volatile amines are determined as ammonia, but their concentrations in photoprocessing wastes are usually very low.

Photography - Processing waste - Determination of ammoniacal nitrogen (microdiffusion method)