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BS EN 18168:2026 Ambient air. Biomonitoring with higher plants. Method of the standardized rye-grass exposure, 2026
- undefined
- European foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Principle of the method
- 5 Test methods [Go to Page]
- 5.1 Material [Go to Page]
- 5.1.1 Grass species and cultivar
- 5.1.2 Substrate
- 5.1.3 Fertiliser solution
- 5.1.4 Water
- 5.1.5 Exposure device
- Figure 1 — Plant pot [Go to Page]
- 5.2 Cultivation
- 5.3 Exposure
- 5.4 Exposure location
- 5.5 Exposure duration
- Figure 2 — Exposure time of the grass culture in overlapping periods; each period covers 28 days
- 6 Sampling and handling of samples [Go to Page]
- 6.1 General
- 6.2 Sampling
- 6.3 Transport
- 6.4 Preparation of the samples
- 6.5 Storage
- 7 Documentation
- 8 Data handling and data reporting [Go to Page]
- 8.1 Performance characteristics
- 8.2 Study design and data handling/reporting in dependence on the required explanatory power of the study
- 9 Quality control and quality assurance [Go to Page]
- 9.1 Control of the plant material
- 9.2 Requirements for the exposure locations
- 9.3 Requirements for the sample quantity
- 9.4 Analytical requirements
- 10 Presentation of measured data
- 11 Assessment [Go to Page]
- 11.1 General
- 11.2 Reference values for comparison
- 11.3 Threshold values
- Annex A (informative) Recommended upper limits for element concentrations in substrate
- Table A.1 Recommended upper limits for element concentrations in substrate (potting soil type 0, partly mixed with 20 % to 30 % Sphagnum peat)
- Annex B (informative) Examples of exposure devices
- Figure B.1 — Example of water reservoir for one single pot
- Figure B.2 — Sectional diagram of the grass exposure device (source: Biomonitor – France)
- Figure B.3 — Exposure device and Italian rye-grass culture at the beginning of the exposure period (source: LANUK NRW)
- Figure B.4 — Exposure device and Italian rye-grass culture at the end of the 28-day exposure period (source: Biomonitor – France)
- Annex C (informative) Plates: cultivation and sampling
- Annex D (informative) Sample preparation (before analysis)
- Annex E (informative) Examples of protocols for documentation
- Annex F (informative) Study design, data analysis and interpretation
- F.1 General
- F.2 Consideration of grass culture growth dynamics and substance accumulation over time
- F.3 Background values and overall uncertainty in long-term background monitoring studies
- Table F.1 Mean element content and content-related range in standardized grass cultures within the range of typical background values, determined from parallel exposures of two grass cultures respectively at different back-ground sites in Southern Ger...
- F.4 Study design and data handling of source-related monitoring studies
- F.4.1 General
- F.4.2 Treatment of outlier values
- F.4.3 Missing measurement values
- Annex G (informative) Reference data
- Table G.1 Pollutant contents (minimum, maximum, mean and median values) in standardized grass cultures for background exposure sites in France
- Table G.2 Background exposure sites in North Rhine-Westphalia, Germany: Pollutant contents (minimum, maximum, mean and median values) in standardized grass cultures
- Table G.3 Exposure at a typical industrial location (Duisburg Port) in North Rhine-Westphalia, Germany: Pollutant contents (minimum, maximum, mean and median values) in standardized grass cultures
- Table G.4 Traffic contamination location (Düsseldorf) exposure sites in North Rhine-Westphalia, Germany: Pollutant contents (minimum, maximum, mean and median values) in standardized grass cultures
- Table G.5 Background exposure sites in Austria: Pollutant contents (minimum, maximum, mean and median values) in standardized grass cultures
- Table G.6 Background exposure sites and an urban site in Bavaria, Germany: Pollutant contents (minimum, maximum, mean and median values) in standardized grass cultures
- Bibliography
- BACK COVER WITH LINKS.pdf [Go to Page]
- Foreword
- Section 1 General [Go to Page]
- 1 Scope
- 2 Normative references
- 3 Terms, definitions, symbols and abbreviated terms [Go to Page]
- 3.1 Terms and definitions
- 3.2 Symbols
- 3.3 Abbreviated terms
- Section 2 Fendering [Go to Page]
- 4 General principles [Go to Page]
- 4.1 Provision and overall design of fendering systems
- Table 1 — Berth features to be taken into account in the design of the fendering system
- Table 2 — Vessel features to be taken into account in the design of the fendering system
- 4.2 Selection and design of fenders
- 4.3 Vessel characteristics [Go to Page]
- 4.3.1 General
- 4.3.2 Vessels with bulbous bows
- Figure 1 — Geometry of vessel with bulbous bow impacting the quay structure
- 4.3.3 Belting
- 4.4 Fender layout for berths and other locations [Go to Page]
- 4.4.1 General
- Figure 2 — Hull and cope geometry at initial contact
- Figure 3 — Approximation of bow radius
- 4.4.2 Continuous quays
- 4.4.3 Island berths
- Figure 4 — Fender layout for three island berth
- Figure 5 — Fender layout for five island berth
- 4.4.4 Lead-in jetties and lock entrances
- 4.5 Berthing procedure [Go to Page]
- 4.5.1 Alongside berthing
- Figure 6 — Geometry of vessel approach to berth
- 4.5.2 Ferry and Ro-Ro berths
- Figure 7 — Ferry and Ro‑Ro vessel berthing
- 4.6 Berthing reactions and load distribution [Go to Page]
- 4.6.1 General
- 4.6.2 Hull pressures
- Table 3 — Guidance on hull pressure
- 4.6.3 Fender energy absorption and reaction due to parallel and angular berthing
- Figure 8 — Hull and fender geometry at contact
- 4.7 Moored reactions
- 4.8 Moored vessels subject to wave action
- 5 Calculation of berthing energies [Go to Page]
- 5.1 Characteristic and design berthing energy
- 5.2 Calculation of characteristic berthing energies for alongside berthing [Go to Page]
- 5.2.1 General
- 5.2.2 Berthing velocities
- 5.2.3 Displacement
- 5.2.4 Hydrodynamic mass coefficient
- 5.2.5 Eccentricity coefficient
- 5.2.6 Softness coefficient
- 5.2.7 Berth configuration coefficient
- 5.3 Calculation of berthing energies for ferry and Ro-Ro berths [Go to Page]
- 5.3.1 Characteristic berthing velocities
- 5.3.2 Side fenders
- 5.3.3 End fenders
- 6 Selection of fenders and fender types [Go to Page]
- 6.1 General
- 6.2 Materials and workmanship
- 6.3 Fenders using moulded/wrapped/extruded elastomeric units [Go to Page]
- 6.3.1 Fender selection
- 6.3.2 Fender reactions for the design of fender support structures, fender panels and fender ancillary items
- 6.4 Torsion arm fenders
- Figure 9 — Torsion arm fender
- 6.5 Pneumatic and foam-filled fenders [Go to Page]
- 6.5.1 Pneumatic fenders
- 6.5.2 Foam-filled fenders
- 6.6 Shear forces on fenders
- Table 8 — Typical coefficients of friction of fender-facing materials in dry conditions
- 6.7 Mounting and suspension [Go to Page]
- 6.7.1 General
- 6.7.2 Fixings
- 6.7.3 Restraint chains
- 6.7.4 Suspension systems for fenders
- 6.8 Fender panels [Go to Page]
- 6.8.1 Geometry
- 6.8.2 Design
- 6.8.3 Fabrication
- 6.8.4 Maintenance
- 6.9 Fender spools [Go to Page]
- 6.9.1 Design
- 6.9.2 Fixings
- 6.9.3 Corrosion mitigation
- 6.9.4 Fabrication
- 6.9.5 Maintenance
- 6.10 Flexible dolphins [Go to Page]
- 6.10.1 Loadings
- 6.10.2 Design of flexible dolphin
- 6.10.3 Design deflections
- 6.10.4 Decks and berthing frames
- 6.10.5 Flexible dolphins with fenders
- Figure 11 — Flexible dolphins
- 6.11 Traceability
- Section 3 Mooring [Go to Page]
- 7 Principles of effective mooring [Go to Page]
- 7.1 General
- 7.2 Snap back
- 7.3 Mooring lines [Go to Page]
- 7.3.1 Breast lines
- 7.3.2 Spring lines
- 7.3.3 Head and stern lines and additional mooring lines
- 7.4 Mooring layouts [Go to Page]
- 7.4.1 General
- 7.4.2 Continuous quays
- Figure 12 — Typical mooring pattern for continuous quay
- 7.4.3 Island or similar berths
- Figure 13 — Optimum angles of mooring lines for island tanker berth
- 8 Actions acting on the moored vessel [Go to Page]
- 8.1 General
- 8.2 Wind and currents
- 8.3 Hydrodynamic forces [Go to Page]
- 8.3.1 Off‑quay hydrodynamic forces
- Figure 14 — Vessel under influence of stand off force
- 8.3.2 Passing vessel effects
- 8.3.3 Long period and infragravity waves
- 8.4 Tidal rise and fall and change in draught or trim due to cargo operations
- 8.5 Ice
- Figure 15 — Effect of rise and fall of tide and change in draught or trim
- 9 Loads on mooring points [Go to Page]
- 9.1 General
- 9.2 Calculation methods [Go to Page]
- 9.2.1 General
- 9.2.2 Method 1: Elastic analysis
- 9.2.3 Method 2: Simple shared loads
- 9.2.4 Method 3: Working line loads
- 9.2.5 Method 4: Computer simulation or physical modelling
- 9.2.6 Method 5: Notional bollard load capacity
- Table 9 — Nominal bollard capacity for preliminary design of continuous berths accommodating vessels up to 20 000 t displacement
- 9.3 Design of mooring point supporting structures
- 10 Berth mooring equipment [Go to Page]
- 10.1 Materials and testing
- 10.2 Mounting and fixing
- 10.3 Traceability
- 10.4 Bollards
- Table 10 — Mooring bollards
- Table 11 — Partial factors associated with the uncertainty of the resistance model applicable to the design of bollards
- 10.5 Quick release mooring hooks
- 10.6 Capstans
- 10.7 Alternative mooring systems [Go to Page]
- 10.7.1 Hydraulic piston mooring systems
- 10.7.2 Vacuum mooring systems
- 10.7.3 Magnetic mooring systems
- Annex A (normative)Performance testing of elastomeric fender units
- A.1 Test pieces
- A.2 Number of test pieces
- A.3 Test laboratory and apparatus
- A.4 Independent verification
- A.5 Thermal stabilization
- Table A.1 — Calculation of Δ for determining the duration of thermal stabilization
- A.6 Compression velocity
- A.7 Angular compression
- A.8 Extent of compression
- A.9 Calculation of energy absorption
- A.10 Stability of test piece
- A.11 Test procedure
- A.12 Pass criteria
- A.13 Test report
- A.14 Establishment of fender performance factors
- A.15 Performance testing for type approval
- Annex B (informative)Berthing velocities
- B.1 Historic approach
- B.2 WG211 approach
- B.3 Alternative approach
- Figure B.1 — Suggested minimum berthing velocities
- Table B.1 — Minimum characteristic berthing velocities
- Annex C (normative)Durability testing of elastomeric fender units
- C.1 Test pieces
- C.2 Number of test pieces
- C.3 Number and extent of compressions
- C.4 Test laboratory and apparatus
- C.5 Test procedure
- C.6 Pass criteria
- C.7 Test report
- C.8 Durability testing for type approval
- Annex D (informative)Further background to moored ship dynamic response
- Annex E (normative)Numerical modelling
- Figure E.1 — The six degrees of freedom of vessel motion
- Annex F (normative)Physical modelling
- Annex G (normative)Testing of mooring equipment
- G.1 General
- G.2 Laboratory testing [Go to Page]
- G.2.1 General
- G.2.2 Testing pass criteria
- G.2.3 Minimum breaking load (MBL)
- G.2.4 Verification of working load limit at project stage
- G.3 Reporting of laboratory testing
- G.4 Conformity
- G.5 Verification of WLL of installed mooring equipment
- G.6 Reporting of in situ testing
- Bibliography [Go to Page]