TP114 - Uredba o emisiji snovi in toplote pri odvajanju odpadnih voda v vode in javno kanalizacijo

Describes the tracers used (iodide, lithium, chloride, chromium), the tracer measurement (principle, field measurement and laboratory measurements), environmental factors affecting tracers, techniques for tracer injection, sampling techniques, analysis and sources of error.

Describes the tracers used (fluorescein, rhodamine B, acid yellow 7, sulfo rhodamine B, pyranine, and rhodamine WT), the tracer measurement (principle, field measurement and laboratory measurements), environmental factors affecting tracers, techniques for tracer injection, sampling techniques, analysis and computation.

Concerns principles of the constant rate injection method and the sudden injection method (integration method), and the principles of injection, sampling and analysis which apply for all types of tracer. The tracers used and their concentrations should be compatible with the legislation of each country regarding the occasional and short-durations discharges of foreign substances into natural waters.

ISO 1088:2007 provides a standard basis for the collection and processing of data for the determination of the uncertainties in measurements of discharge in open channels by velocity-area methods using current meters. To determine the discharge in open channels by the velocity-area method, components of the flow (velocity, depth and breadth) need to be measured. The component measurements are combined to compute the total discharge. The total uncertainty in the computed discharge is a combination of the uncertainties in the measured components.
ISO 1088:2007 is intended to be applied to velocity-area methods that involve measurement of point velocities at a relatively small number of discrete depths and transverse positions in the flow cross-section, as described in ISO 748. It is not intended to be applied to measurements made by Acoustic Doppler Velocity Profilers (ADVP) or other instruments that produce essentially continuous velocity profiles of the flow field.

TC - Replace Equation A.2 (E+F)

This standard deals with installations for the separation of light liquids (e.g. oil and petrol), i.e. those with a density up to 0.95 g/cm3 from waste water by means of gravity and/or coalescence. The standard is not primarily intended to apply to installations that are required to treat large quantities of trade effluent (e.g., oil refinery effluent). The standard may, however, still be appropriate for this purpose depending on local requirements.

This standard specifies definitions, nominal sizes, principles of design, performance requirements, marking, testing and quality control for grease separators.
This standard applies to separators for the separation of greases and oils of vegetable and animal origin from wastewater by means of gravity and without any external energy.
This standard does not cover grease separators intended to treat domestic wastewater from kitchen areas of single family dwellings, where the separator has a nominal size less than 1.
The standard is not applicable for the separation of light liquids, e.g. petrol, fuel and heating oil, and does not cover the treatment of wastewater exclusively containing stable emulsions of greases and oils.
The standard does not cover the use of biological means (bacteria and enzymes).

This standard specifies definitions, principles of sizing, installation, operation and maintenance of separator systems for light liquids in accordance with prEN 858-1:1997 as well as requirements and test methods for cleansing agents discharged with the waste water into the separator system. When pollution control requires the treatment of pollutants other than light liquids, additional measures shall be necessary.

This standard specifies requirements on selection of nominal sizes, installation, operation and maintenance of grease separators in accordance with prEN 1825-1:1998. This standard does not apply to waste water containing light liquids, e.g. grease or oils of mineral origin, and does not include treating stable emulsions of grease or oil in water. The standard does not cover the use of biological means (bacteria, enzymes for so-called "self-cleaning").

This standard deals with installations for the separation of light liquides (e.g. oil and petrol), i.e. those with a density up to 0.95 g/cm3 from waste water by means of gravity and/or coalescence. The standard is not primarily intended to apply to installations that are required to treat large quantities of trade effluent (e.g., oil refinery effluent). The standard may, however, still be appropriate for this purpose depending on local requirements.

ISO/TS 25377:2007 provides an understanding of the nature of measurement uncertainty and its significance in estimating the quality of a measurement or a determination in hydrometry. It is applicable to flow measurements in natural and man-made channels. Rainfall measurements are not covered.

ISO 748:2007 specifies methods for determining the velocity and cross‑sectional area of water flowing in open channels without ice cover, and for computing the discharge therefrom.
ISO 748:2007 covers methods of employing current‑meters or floats to measure the velocities. It deals only with single measurements of the discharge; the continuous recording of discharges over a period of time is covered in ISO 1100-1 and ISO 1100-2.

ISO 3455:2007 specifies the procedure of calibration of current-meters of rotating-element type as well as stationary-sensor type (electromagnetic type) in straight open tanks. It also specifies the types of tank, rating carriage and equipment to be used and the method of presenting the results.
The procedure does not take into account any possible difference existing between the behaviour of a current-meter moving in motionless water and that of a fixed current-meter in turbulent flow.

Investigates cross-channel mixing characteristics of solutes injected in streams. Specifically, it relates to the use of tracers for the measurement of discharge. The purpose of the report is as follows: to compare methods of defining the degree of mixing; to compare methods of estimating the mixing length and to recommend a particular method; to investigate the errors in dilution measurements associated with incomplete mixing; to discuss methods of reducing errors in dilution-discharge measurements when mixing is incomplete.