Thermogravimetric analysis or thermal gravimetric analysis (TGA) is a type of testing performed on samples that determines changes in weight in relation to change in temperature. Such analysis relies on a high degree of precision in three measurements: weight, temperature, and temperature change. As many weight loss curves look similar, the weight loss curve may require transformation before results may be interpreted. A derivative weight loss curve can identify the point where weight loss is most apparent. Again, interpretation is limited without further modifications of the overlapping peaks. TGA is commonly employed in research and testing to determine characteristics of materials such as polymers, to determine degradation temperatures, absorbed moisture content of materials, the level of inorganic and organic components in materials, decomposition points of explosives, and solvent residues. It is also often used to estimate the corrosion kinetics in high temperature oxidation.

An air powered drill for use underwater. Training /Assessment required for operators or CMR operator required

A battery powered underwater drill for use up to 50m. Training /Assessment required for operators or CMR operator required

A flag or diver down flag or surface marker to indicate diving activities to other marine users.

Diving lift bag in various sizes to lift 25 kg- 500kg. Require assessment/ diver training can be etrememely dangerous and hazardous to diver and others if not trained in use especially of larger bags.

Surface marker buoy and reel. For marking diver ascent to surface.

Trilogy TD Fluorometer is a powerful yet easy to use instrument that offers many benefits for benchtop analysis of samples. Trilogy can be used for fluorescence, absorbance, or turbidity measurements by simply snapping in the appropriate module. Standard modules are pre-configured for select applications.
The module currently in use is Ammonium Module. Accurate determination of ammonium concentration is fundamental to understanding nitrogen biogeochemistry in aquatic ecosystems. The TD Fluorometer gives precise measurements of ammonium over a wide range of concentrations and salinities.
Minimum sample amount is 20 mL.

Diving knives for clearing snagging/entanglement hazards

Measurement of surface tension, interface tension, density, contact angle�and critical micelles concentration (CMC ).
Sample - liquids (surface tension, interface tension, density, CMC) with a minimum quantity of 50mL; solids (flat surface substrate).

Measurement of specific surface area, pore volume and pore size distribution using nitrogen gas, argon or krypton at liquid nitrogen or argon temperature. There are two different samples that can be measured based on pore size: a) mesopores with pore size from 2nm to 50nm; b) micropores with pore size from 2 nm down to 0.55 nm. The relative pressure data start in the range of 10^-06 p/p0 where micropores start filling. The machine can run 6 samples simultaneously.
Sample - solids, powders or polymers. Quantity to be discussed with lab scientists.

Measuring water vapor uptake capacity and kinetics in precisely defined environmental conditions are used to characterize and understand hygroscopic materials. The water vapor analyzer allows gravimetric measurement of sample mass changes upon exposure to up to 98% humid flow conditions at temperatures ranging from 5 degC up to 350 degC (HT). This system allows isotherm and kinetics analysis, cyclic/lifetime studies, moisture content determination, hydrate analysis, amorphous phase detection, and others.
Sample - a minimum quantity of 50mg is required.

Measurement of UV-VIS-NIR spectra by transmission and reflection mode with spectral range from 175 nm to 3300 nm. The instrument is equipped with 2 additional capabilities a) Integrating Sphere module, for diffuse and specular transmission and reflectance measurements; a) Total Absolute Measurement System (TAMS), which provides angular scattering measurement capabilities.
Sample - powders, solids, liquidsor thin films. Quantity to be discussed with lab scientists.

Measurement of specific surface area, pore volume, and pore size distribution of mesopore samples (2nm to 50nm pore size) using nitrogen gas at liquid nitrogen temperature. The machine can measure 3 samples simultaneously. The relative pressure data start in the range of 10^-04 p/p0.
Sample - solids, powders and polymers. Quantity to be discussed with lab scientists.

Rubotherm IsoSORP is an advanced gravimetric instrument featuring a Magnetic Suspension Balance that enables sorption measurements under high pressure (up to 150 bar) or vacuum environments. Samples can be measured in the presence of pure gas and binary gas mixtures over a wide temperature range covering 20ºC to 400ºC. Sample - solids, powders, oils (heavy oil, viscous) or sediments. Quantity and experimental details to be discussed with lab scientists.

Measurement of specific surface area, pore volume and pore size distribution using nitrogen gas, argon or krypton at liquid nitrogen or argon temperature. There are two different samples that can be measured based on pore size: a) mesopores with pore size from 2nm to 50nm; b) micropores with pore size from 2 nm down to 0.55 nm. The relative pressure data start in the range of 10^-06 p/p0 where micropores start filling. The machine can run 6 samples simultaneously.
Sample - solids, powders or polymers. Quantity to be discussed with lab scientists.

Measures specific surface area (BET), pore volume, and pore size distribution, of ultamicroporous (<0.7 nm, with low precision and low resolution), (microporous (0.7nm-2nm), mesoporous (2nm-50nm) and low surface area material by probing the activated surface of the sample with gases such as Nitrogen, Argon, CO2 or others and measuring the adsorbed gas volume at fixed bath temperature (i.e. liquid nitrogen, liquid argon, ice bath, circulating bath) and increasing static pressure ranging from 0.1 umHg up to 950 mmHg. The relative pressure data start in the range of 10^-07 p/p0 where micropores start filling.
The chemisorption option (2020C) permits obtaining valuable information properties of a catalyst like active metal surface area, metal dispersion, active metal particle size and others by probing its activated surface with active gases (H2, O2, CO, CO2, NH3) and measuring the adsorbed gas volume at constant furnace temperature (up to 1100 degC) and increasing static pressures.
Vapor adsorption option is also available for saturated hydrocarbons ONLY.
Sample - solids, powders or polymers. Quantity to be discussed with lab scientists.

Measurement of activity and selectivity of catalysts. The instrument runs catalytical and temperature programmed reactions; and pulse chemisorption.
Sample - solids or powders . Quantity to be discussed with lab scientist.

Fluorescence spectroscopy measurement for solid, thin film, and solution samples.
Sample - liquids with a minimum quantity of 3mL; solids or powders 10mg; thin films 1cm2.

Autochem II 2920 Dynamic Chemisorption Analyzer is an automated catalyst characterization system that is capable of preparing and analyzing samples at atmospheric and at temperatures from -100 to 1100 degC. The instrument enables obtaining valuable information about the physical properties of catalysts, catalyst support, and a variety of other materials. Researchers can investigate active metal surface area, surface acidity, distribution and strength of active sites, BET surface area, and more. The AutoChem II performs pulse chemisorption, temperature programmed reduction (TPR), desorption (TPD), oxidation (TPO), and reaction analyses.
Mass spectrometer port and software integration allows virtually simultaneous detection on both the thermal conductivity detector and mass spectrometer.
Vapor Generator permits analysis using vaporized liquids in an inert carrier stream.
Sample - solids, powders or polymers. Quantity to be discussed with lab scientists.

Fourier transform infrared spectroscopy -FTIR - to measure MID infrared spectrum by trasmission and reflection (iTR, grazing angle and ATR).
Sample - powders, solids, thin films, gas, liquids. Quantity to be discussed with lab scientist.