Environmental Behaviour in Lab. Tests
The phenomena of biotic and abiotic
conversion of substances like pesticides, biocides, chemicals etc. is one of
the important factors in assessing the risks of chemicals in the
environment. In addition, the translocation and discharge of such substances
into the environment also plays a crucial role in environmental risk
assessment.
To describe the behaviour of these substances in the environment, SGNCO
provides a wide range of tests in this field. With cutting edge technology,
SGNCO offers precise environment risk assessment studies to determine the
substance behaviour in the environment. In addition, we also provide
professional advises in specific cases to ensure specific regulatory
acceptance. We offer the following services:
Consulting
- Checking existing data
- Developing a test strategy
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Biotic Degradation
- Degradation in soils and water systems under aerobic and
anaerobic conditions
- Determining the degradation kinetics in the soil and water
systems
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Abiotic Degradation
- Hydrolysis in relation to pH
- Oil photolysis
- Water photolysis
- Calculation of the degradation kinetics
- Estimation of degradation due to sunlight
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Displacement
- Leaching into the soil
- Volatisation of soil and plant surfaces
- Adsorption/desorption on soils and sediments
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Exposure Estimates
- Calculation of the predicted environmental concentration (PEC) in
soils, water, sediment and air
- Determination of the degradation kinetics
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Environmental Field Studies
SGNCO offers its services for
environmental field studies that include various study types and methods.
The objective us to test the environmental behaviour of crop protection
agents and other substances. It may also include transport and propagation
behaviour of these substances. The tests evaluate the environmental risk
pertaining to soil, air and ground/surface water.
Study Types:
- Surface & ground water studies
- Air monitoring
- Field dissipation/accumulation studies
- Drainage studies
- Field leaching studies
- Run-off studies
- Drift value determination
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Services Offered:
- Study conception
- Project management
- Selecting locations & collaboration with authorities
- Installation of sampling/measuring technologies
- Data analysis & modeling for all environmental matrices
- PEC value calculation
- Report preparation
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Ecotoxicology and Biodegradability
SGNCO is adhered and certified for
numerous corresponding test procedures. We have an excellent experience of
problem substances that poorly dissolves in water, highly volatile and
colored.
Our services are:
Ecotoxicology
- Bacteria toxicity tests (acute, chronic, aerobic, anaerobic,
mono-species tests, tests on complex associations)
- Algae growth inhibition test (various species)
- Crustacean toxicity (e.g. daphnia)
- Fish toxicity, acute (static, semi-static)
- Worm toxicity, acute
- Plant growth inhibition tests
- Soil microflora test
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Biodegradability
'Rapid' Biodegradability Testing
- 'Basic' Biodegradability Testing
- Simulation tests (sewage treatment plant simulation)
- Biodegradability Testing in an anaerobic environment
- Compostability/rotting ability
- Biodegradability Testing of mineral oil products
- Primary degradability of surface-active substances
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Work at the CSIRO and elsewhere has
demonstrated that the curvature or crimp of a fibre has a second-order
effect on spinning performance. There has therefore been a resurgence of
interest in fibre crimp. Traditionally staple crimp was used as an indicator
of wool quality, or as a rough guide to diameter, but it was shown that the
relationship between crimp and diameter was fairly poor. In consequence, the
use of crimp as an indicator for "quality" fell into disrepute in
the objective measurement camp, but it was revived when work was carried out
on trying to objectively determine factors relating to style, when crimp
frequency and definition became parameters of interest.
Fibre Curvature
It is important to determine the
curvature of a Fiber, as it has a second-order effect on spinning
performance. At SGNCO, we have developed most effective and promising
methods to find mean Fiber curvature of wool and alpaca fibers.
Since, it has already been proved that various processing stages put
considerable influence on curvature measurement, we use both OFDA and
Laser-Scan instruments for the accuracy of results. This is because both
Laser-Scan and OFDA use different mechanisms to measure the curvature of
Fiber.
Fibre Diameter Distribution
Diameter distribution data is the most
important factor, which determines the spinning quality and comfort
characteristics of wool. SGNCO conducts comprehensive tests to ascertain the
Fiber diameter distribution data. We use most prominent from Based on
Laser-Scan and OFDA measurement systems, we find out Fiber diameter
distribution of both scoured wool and processed wool.
Additionally, we also offer diameter distribution measurement for tops,
sliver and yarns. We include various types of diameter distribution
parameters including SD, CVD, comfort factor etc.
