Public tenders for chemical in Exeter United Kingdom

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Forest Replanting, Protection and Maintenance in West England.

Forestry Commission | Published October 3, 2015  -  Deadline November 6, 2015
cpvs
77200000

West England Forest District (part of Forestry Commission England) are inviting tenders for planting and subsequent maintenance including beating up and chemical weed control, issued in 16 lots. All lots will include some or all of the following work: — restock planting of conifers and broadleaves with either spades or mattocks, — supply and erection of tree shelter/guards, — management and storage of on-site stocks, — beating up of conifers and broadleaves, including those in tubes, — supply and application of herbicide, — application of insecticide, — mechanical (hand or motor/manual) weeding, — Other general work relating to the establishment site, such as stake and tube maintenance, movement of materials.

Miscellaneous engineering services

Devon County Council | Published November 2, 2017  -  Deadline December 8, 2017
cpvs
71330000

This Contract involves the Geotechnical Investigation into the A361 / A39 North Devon Link Road from the Borner's Bridge Junction at South Molton to the Buckleigh Road Junction near Bideford.

This Contract involves the Geotechnical Investigation into the A361 / A39 North Devon Link Road from the Borner's Bridge Junction at South Molton to the Buckleigh Road Junction near Bideford.

The ground investigation will comprise the following works:

— The excavation of mechanically dug trial pits to a maximum depth of 4 m or refusal.

— Windowless sample borehole drilled by a dynamic sampling rig to depths as given in the Procurement Documents or refusal on rockhead. This is to include in-situ Standard Penetration Testing (SPT) and undisturbed sampling. Hand-dug starter pits shall be excavated at all exploratory borehole locations.

— Combine dynamic sample / rotary open hole / rotary cored boreholes to depths as given in the Procurement Documents. This is to include in-situ Standard Penetration Testing (SPT) and undisturbed sampling. Hand-dug starter pits shall be excavated at all exploratory borehole locations.

— Excavation of hand-dug trial pits in sides of existing cuttings and removal of vegetation to expose underlying rock mass to facilitate kinematic analysis.

— Excavation of hand dug pits at base of cutting where inaccessible to mechanical excavation/boring methods.

— Installation of groundwater monitoring standpipes in boreholes to a depth specified by the supervising engineer. Monitoring standpipes shall be 19 mm diameter or greater.

— In-situ determination of California bearing Ratio (CBR) — to be undertaken using Dynamic Cone Penetration (DCP) equipment. The number and location of DCP tests required to provide sufficient coverage will be determined on site by the Investigation Supervisor.

— Groundwater monitoring is to be conducted following the completion of site works at intervals determined by the Investigation Supervisor. All installations shall be monitored to establish the elevation of groundwater.

— Geotechnical Laboratory testing on selected samples.

— Environmental/Chemical Laboratory testing on selected samples.

— Specific borehole requirements and Borehole location plans are detailed within the Procurement Documents.

— Provide Devon County Council with a Ground Investigation Report and Interpretation Report, plus design support.

Supply of an Inductively Coupled Plasma - Optical Emission Spectrometer

UNIVERSITY OF EXETER | Published February 9, 2017  -  Deadline December 1, 2016
Winner
Agilent Technologies LDA UK Ltd
cpvs
38433000

The ICP-OES will be purchased to aid chemical analyses in conjunction with the NERC funded project JET - “Integrated Understanding of the Early Jurassic Earth System and Timescale”. Analyses will be performed on fossil shell materials and rocks to evaluate palaeoenvironmental parameters recorded in these geomaterials. Fossil materials that will be analysed in conjunction with the JET project comprise calcite. For the understanding of the preservation of these shell materials and the palaeoenvironmental information recorded in them, concentrations of Mg, Mn, Fe and Sr are of the greatest interest. The limited variabitility of Mg/Ca and Sr/Ca ratios within the fossils makes it necessary to measure these ratios at great reproducibility (~ 1 % 2sd) in order to achieve a sufficient signal to noise ratio. Mn and Fe concentrations in the shell material are critical to ascertain good fossil preservation and minor differences (in the range of a few µg/g in the calcite) can be meaningful for such interpretation. Because of contraints on material availability the instrument needs to be able to quantify Mn and Fe concentrations in solutions at levels of ca. 1 ng/g.

Supply of an Inductively Coupled Plasma - Optical Emission Spectrometer

UNIVERSITY OF EXETER | Published November 16, 2016  -  Deadline December 1, 2016
cpvs
38433000

The ICP-OES will be purchased to aid chemical analyses in conjunction with the NERC funded project JET - “Integrated Understanding of the Early Jurassic Earth System and Timescale”. Analyses will be performed on fossil shell materials and rocks to evaluate palaeoenvironmental parameters recorded in these geomaterials. Fossil materials that will be analysed in conjunction with the JET project comprise calcite. For the understanding of the preservation of these shell materials and the palaeoenvironmental information recorded in them, concentrations of Mg, Mn, Fe and Sr are of the greatest interest. The limited variabitility of Mg/Ca and Sr/Ca ratios within the fossils makes it necessary to measure these ratios at great reproducibility (~ 1 % 2sd) in order to achieve a sufficient signal to noise ratio. Mn and Fe concentrations in the shell material are critical to ascertain good fossil preservation and minor differences (in the range of a few µg/g in the calcite) can be meaningful for such interpretation. Because of contraints on material availability the instrument needs to be able to quantify Mn and Fe concentrations in solutions at levels of ca. 1 ng/g.

CP1494-17 A361 and A39 North Devon Link Road Geotechnical Investigation

Devon County Council | Published November 2, 2017  -  Deadline December 8, 2017
cpvs
71330000

This Contract involves the Geotechnical Investigation into the A361 / A39 North Devon Link Road from the Borner's Bridge Junction at South Molton to the Buckleigh Road Junction near Bideford. The ground investigation will comprise the following works: • The excavation of mechanically dug trial pits to a maximum depth of 4m or refusal. • Windowless sample borehole drilled by a dynamic sampling rig to depths as given in the Procurement Documents or refusal on rockhead. This is to include in-situ Standard Penetration Testing (SPT) and undisturbed sampling. Hand-dug starter pits shall be excavated at all exploratory borehole locations. • Combine dynamic sample / rotary open hole / rotary cored boreholes to depths as given in the Procurement Documents . This is to include in-situ Standard Penetration Testing (SPT) and undisturbed sampling. Hand-dug starter pits shall be excavated at all exploratory borehole locations. • Excavation of hand-dug trial pits in sides of existing cuttings and removal of vegetation to expose underlying rock mass to facilitate kinematic analysis. • Excavation of hand dug pits at base of cutting where inaccessible to mechanical excavation/boring methods. • Installation of groundwater monitoring standpipes in boreholes to a depth specified by the supervising engineer. Monitoring standpipes shall be 19mm diameter or greater. • In-situ determination of California bearing Ratio (CBR) - to be undertaken using Dynamic Cone Penetration (DCP) equipment. The number and location of DCP tests required to provide sufficient coverage will be determined on site by the Investigation Supervisor. • Groundwater monitoring is to be conducted following the completion of site works at intervals determined by the Investigation Supervisor. All installations shall be monitored to establish the elevation of groundwater. • Geotechnical Laboratory testing on selected samples. • Environmental/Chemical Laboratory testing on selected samples. • Specific borehole requirements and Borehole location plans are detailed within the Procurement Documents. • Provide Devon County Council with a Ground Investigation Report and Interpretation Report, plus design support. The procurement documents are available for unrestricted and full direct access, free of charge, at: http://www.supplyingthesouthwest.org.uk Tenders or requests to participate must be submitted electronically via: http://www.supplyingthesouthwest.org.uk
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