37.040.30 – Photographic chemicals – PDF Standards Store ?u= Wed, 06 Nov 2024 00:00:40 +0000 en-US hourly 1 https://wordpress.org/?v=6.7.1 ?u=/wp-content/uploads/2024/11/cropped-icon-150x150.png 37.040.30 – Photographic chemicals – PDF Standards Store ?u= 32 32 ISO 7766:2003 ?u=/product/publishers/iso/iso-77662003/ Wed, 06 Nov 2024 00:00:40 +0000 Processing photographic wastes — Analysis of cyanides — Determination of hexacyanoferrate (II) and hexacyanoferrate (III) by spectrometry
Published By Publication Date Number of Pages
ISO 2003-06 14
]]> ISO 7766:2003 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.

]]> ISO 7766-1:1993 ?u=/product/publishers/iso/iso-7766-11993/ Wed, 06 Nov 2024 00:00:40 +0000 Photography — Processing wastes — Analysis of cyanides — Part 1: Determination of hexacyanoferrate(II) and hexacyanoferrate(III) by spectrometry
Published By Publication Date Number of Pages
ISO 1993-01 9
]]> The principle of the test method specified is treating a sample of effluent, or diluted effluent, with a mixture of iron(II) and iron(III) ions. If Fe(CN)6 is present, a blue suspension will form. In the range of 1,0 mg/l to 10,0 mg/l, this suspension is stable and its absorbance is linear with its concentration. The absorbance is measured with a spectrometer, and the concentration determined from a previously established calibration.

]]> ISO 7760:2001 ?u=/product/publishers/iso/iso-77602001/ Wed, 06 Nov 2024 00:00:36 +0000 Photography — Processing waste — Determination of hydroquinone
Published By Publication Date Number of Pages
ISO 2001-12 16
]]> 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.

]]> ISO 6853:2001 ?u=/product/publishers/iso/iso-68532001/ Tue, 05 Nov 2024 23:48:27 +0000 Photography — Processing waste — Determination of ammoniacal nitrogen (microdiffusion method)
Published By Publication Date Number of Pages
ISO 2001-12 16
]]> 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.

]]> ISO 6851:2001 ?u=/product/publishers/iso/iso-68512001/ Tue, 05 Nov 2024 23:48:26 +0000 Photography — Processing waste — Determination of total amino nitrogen (microdiffusion Kjeldahl method)
Published By Publication Date Number of Pages
ISO 2001-12 18
]]> 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.

]]> ISO 6850:1994 ?u=/product/publishers/iso/iso-68501994/ Tue, 05 Nov 2024 23:48:26 +0000 Photography — Processing wastes — Determination of nitrate by a spectrometric method using brucine
Published By Publication Date Number of Pages
ISO 1994-12 10
]]> Photography — Processing wastes — Determination of nitrate by a spectrometric method using brucine
Published By Publication Date Number of Pages
ISO 1994-12 10
]]> ISO 6849:1996 ?u=/product/publishers/iso/iso-68491996/ Tue, 05 Nov 2024 23:48:25 +0000 Photography — Processing wastes — Determination of boron
Published By Publication Date Number of Pages
ISO 1996-11 13
]]> Gives two methods for the determination of boron in photographic processing wastes. The first method is the estimation of borates by titration of the boric acid-mannitol complex. Suitable for boron concentrations of 0,1 mg/l and higher. The second alternative method is a spectrophotometric technique using methylene blue which can be used in the concentration range of 0,1 mg/l to 1,0 mg/l.

]]> ISO 5990:2000 ?u=/product/publishers/iso/iso-59902000/ Tue, 05 Nov 2024 23:36:32 +0000 Photography — Processing chemicals — Specifications for potassium sulfite, 650 g/l solution
Published By Publication Date Number of Pages
ISO 2000-12 14
]]> This International Standard establishes criteria for the purity of photographic-grade potassium sulfite, 650 g/I

aqueous solution, and specifies the tests to be used to determine the purity.

]]> ISO 5989:1995 ?u=/product/publishers/iso/iso-59891995/ Tue, 05 Nov 2024 23:36:31 +0000 Photographie — Produits chimiques préemballés pour le traitement des produits photographiques à base d'halogénures d'argent — Vocabulaire
Published By Publication Date Number of Pages
ISO 1995-08 12
]]> Gives terms and definitions of pre-packaged chemicals used in the processing of silver halide based photographic materials. No restriction for the manufacturer to add additional information, but this information shall not be in conflict with the information of this standard. Cancels and replaces the first edition, which has been technically revised.

]]> ISO 424:1994 ?u=/product/publishers/iso/iso-4241994/ Tue, 05 Nov 2024 23:17:11 +0000 Photography — Processing chemicals — Specifications for anhydrous sodium carbonate and sodium carbonate monohydrate
Published By Publication Date Number of Pages
ISO 1994-10 12
]]> Cancels and replaces the first edition (1976). Establishes criteria for the purity of photographic-grade anhydrous sodium carbonate and sodium carbonate monohydrate and specifies the test methods to be used to determine the purity.

]]>