BS ISO 6851:2001
Current
The latest, up-to-date edition.
Photography. Processing waste. Determination of total amino nitrogen (microdiffusion Kjeldahl method)
Hardcopy , PDF
English
18-01-2002
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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
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.
| Committee |
CPW/42
|
| DevelopmentNote |
Supersedes 97/704314 DC (02/2002) Reviewed and confirmed by BSI, August 2016. (07/2016)
|
| DocumentType |
Standard
|
| Pages |
20
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
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.
| Standards | Relationship |
| ISO 6851:2001 | Identical |
| 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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