Total Nitrogen in Soils

SOP: 2340

High temperature combustion of the sample in oxygen using an elemental analyser.  The resultant nitrogen gas is measured by thermal conductivity detection.

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    A number of different publications and standards cite sulphate methods. BR279 (1995) has largely been superseded by analytical procedures as detailed in TRL 447 and BRE Special Digest:1 2005 3rd Edition. In addition further reference may be made to BS EN 144-1:2009 + A1:2012 for the testing of aggregates and BS 1377:2018 for soils for civil engineering purposes.

    Testing to meet the requirements of UKWIR Report Ref. No. 10/WM/03/21 Guidance for the selection of water supply pipes to be used in brownfield sites.

    Testing & reporting is undertaken in accordance with BS 3882:2015 Specification for topsoil and BS 8601:2013 Specification for subsoil and requirements for use

    All Asbestos Methods

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    Speciated Polynuclear Aromatic Hydrocarbons (PAHs) in Soils by GC-MS

    UKAS & MCERTS accredited: acenaphthene; anthracene; benzo[a]anthracene; benzo[a]pyrene; benzo[b]fluoranthene; benzo[ghi]perylene; chrysene; fluoranthene; fluorene; indeno...

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    UKAS accredited: antimony; arsenic; barium; beryllium; boron; cadmium; chromium; cobalt; copper; lead; manganese; mercury; molybdenum; nickel; selenium; tin; vanadium; zi...

    Speciated Polynuclear Aromatic Hydrocarbons (PAH) in Waters by GC-FID

    Acenaphthene; acenaphthylene; anthracene; benzo[a]anthracene; benzo[a]pyrene; benzo[b]fluoranthene; benzo[ghi]perylene; benzo[k]fluoranthene; chrysene; dibenz[ah]anthrace...

    Speciated Polynuclear Aromatic Hydrocarbons (PAHs) in Waters by GC-MS

    Acenaphthene; acenaphthylene; anthracene; benzo[a]anthracene; benzo[a]pyrene; benzo[b]fluoranthene; benzo[ghi]perylene; benzo[k]fluoranthene; chrysene; dibenz[ah]anthrace...

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    The method includes parathion, malathion, chlorpyrifos, diazinon  plus any organophosphorus pesticides specified by the client. Methodology – Liquid/liquid solvent extrac...

    Phenols in Waters by HPLC

    The method includes resorcinol, phenol, methylphenols, dimethylphenols, 1-naphthol and trimethylphenols. Chlorophenols are not detected by this method. Methodology – Dete...

    Determination of Trace Elements

    Including arsenic, barium, beryllium, cadmium, cobalt, chromium, copper, mercury, molybdenum, manganese, nickel, lead, antimony, selenium, thallium, vanadium, zinc In-hou...