Customer Support: 131 242

  • There are no items in your cart
We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
Dismiss alert

BS ISO 6851:2001

Current
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

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.

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.

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

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)

View more information
$294.12
Including GST where applicable

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.

Need help?
Call us on 131 242, then click here to start a Screen Sharing session
so we can help right away! Learn more