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  • BS ISO 6851:2001

    Current The latest, up-to-date edition.

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

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  18-01-2002

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Principle
    4 Reactions
    5 Safety and operational precautions
    6 Materials and reagents
    7 Apparatus
    8 Sampling and sample preparation
    9 Procedure
    10 Expression of results
    11 Test report
    Bibliography

    Abstract - (Show below) - (Hide below)

    Refers to 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.

    Scope - (Show below) - (Hide below)

    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.

    General Product Information - (Show below) - (Hide below)

    Committee CPW/42
    Development Note Supersedes 97/704314 DC (02/2002) Reviewed and confirmed by BSI, August 2016. (07/2016)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO 385-2:1984 Laboratory glassware Burettes Part 2: Burettes for which no waiting time is specified
    ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
    ISO 835-4:1981 Laboratory glassware Graduated pipettes Part 4: Blow-out pipettes
    ISO 6353-1:1982 Reagents for chemical analysis — Part 1: General test methods
    ISO 1042:1998 Laboratory glassware One-mark volumetric flasks
    ISO 648:2008 Laboratory glassware — Single-volume pipettes
    ISO 4788:2005 Laboratory glassware Graduated measuring cylinders
    ISO 835-2:1981 Laboratory glassware Graduated pipettes Part 2: Pipettes for which no waiting time is specified
    ISO 10349-1:2002 Photography Photographic-grade chemicals Test methods Part 1: General
    ISO 5667-2:1991 Water quality Sampling Part 2: Guidance on sampling techniques
    ISO 5667-3:2012 Water quality Sampling Part 3: Preservation and handling of water samples
    ISO 385-1:1984 Laboratory glassware — Burettes — Part 1: General requirements
    ISO 835-3:1981 Laboratory glassware Graduated pipettes Part 3: Pipettes for which a waiting time of 15 s is specified
    ISO 5667-1:2006 Water quality Sampling Part 1: Guidance on the design of sampling programmes and sampling techniques
    ISO 6353-3:1987 Reagents for chemical analysis — Part 3: Specifications — Second series
    ISO 835-1:1981 Laboratory glassware Graduated pipettes Part 1: General requirements
    ISO 385-3:1984 Laboratory glassware — Burettes — Part 3: Burettes for which a waiting time of 30 s is specified
    ISO 6853:2001 Photography Processing waste Determination of ammoniacal nitrogen (microdiffusion method)
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