-lab-1830013534.jpg "BABY VICE (SWIVEL BASE)")
Made out of Cast Iron with Guide Rods.
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Made out of Cast Iron with Guide Rods
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Compact Dry E. coli/Coliform Count (EC) is a Direct Culture based ready-to-use test method for Rapid Enumeration of Escherichia coli and coliform bacteria.
Compact Dry E. coli/Coliform Count (EC) plates for bacteriological testing of drinking water.
The medium should be rehydrated with 1mL diluted sample inoculated onto the center of the self-diffusible medium, allowing the solution to diffuse by capillary action. The plate can be incubated at 35[degrees]C for 20-24h and the colonies counted without any further working steps.
The plates are pre-sterilized, contain culture medium and a cold water-soluble gelling agent
Medium contains 2 kinds of chromogenic enzyme substrates that develop red/pink color for Coliform and white/blue color for E.coli.
Storage: Keep at room temperature (1-30 degrees C). Refrigerated storage is not required.
Bacterial Growth Incubator 5oC to 80 oC
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The kit comprises a simple sterilized plastic or glass bottle that contains dry powder medium. The powder is completely soluble in water and a dark amber colour solution is formed on the addition of water.
This is a simple bacteriological testing kit that could be used to indicate the presence of pathogens. It does not attempt to identify the pathogens.
The kit can be used with any water irrespective of its source, including chlorinated water.
The solution will change colour to black in the presence of H2S producing organisms in ambient temperatures between 25ºC and 44ºC, preferably to be kept at 35-37ºC, for an observation time of 24 to 48 hours. No incubator is needed for this range of temperatures.
Biodegradable carrier bag, printed with 4 colors, pack of 20.
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100% recycled LDPE Plastic carrier bag, self sealing with interlock seal type closure on 1 short side, securely sealed along the 2 long sides with a cleanly punched handle.
Material: 100% recycled LDPE
Color: white
Dimensions: active length (length below the base of the seal) of 350mm, length above the top of the seal of 80mm, width of 282mm and thickness of 0.15mm (150 microns).
Shell fabrics: 100% Polyester, 1200 x 600 denier, tightly woven and spun to resist puncturing, triple PVC/rubber blend coating material must measure 340 GSM when coated.
Lateral fixations and length adjuster: Cyan blue PE plastic.
Lining fabrics: Cyan taffeta: 100% polyester, 190denier.
Mesh lining: Black 100% polyester. 410x150mm
with elastic top and stitched to the base of the bag.
Cyan piping tape for seams: 100% polyester. Back and front seams of bag reinforced with piping.
Shoulder strap: Cyan blue: 100% polyester. 1200 mm x 40 mm shoulder strap with rubber pad reinforced with X stitching. Shoulder pad, Cyan blue 4mm rubber.
Zips: Zinc alloy. Zip pull 30mm.
Padding: 100% polyester, molitan/sponge rubber. The bag is padded on all 4 sides except the top.
Carrying Handle: 100% polyester. 30mm wide at the top of the bag. Handle reinforced with X stitching and padded Velcro closure.
Capacity of Bag: Suitable to carrying a weight of 10kg.
The product is not permeated by water in the following situations: prolonged water exposure, heavy top-down watering, forceful water pressure applications, or submersion. Shell fabrics: 100% polyester, 1200 x 600 denier, tightly woven and spun to resist puncturing, triple PVC/rubber blend coating material.
Lateral fixations and Length adjuster
Carrying handle
Cyan piping tape for seams
Shoulder strap
Zips: Zinc alloy
Capacity of Bag: Suitable to carrying a weight of 15kg.
Base reinforcement: Supplied with a loose bottom plate of 1 mm PVC board, dimensions 600 x 230mm (tolerance of +/- 50mm).
Compartment 1:
Inside Pockets:
Two inner pockets; mesh sides with elastic tops, located on the back side of the main compartment.
Large compartment zip closure around three sides of the compartment with a 2 way zip pull. Mesh lining stitched to the base of the bag and a 1mm PVC board reinforcement secured on the base.
Size: H400 x Depth100 x W270 mm.
Compartment 2:
Small pocket H230 x Depth 40 x W280 mm with side gussets, zip closure around top of pocket with one zip pull.
Compartment 1:
Inside Pockets:
Two inner pockets; mesh sides with elastic tops, located on the back side of the main compartment.
Large compartment YKK zip closure around three sides of the compartment with a 2 way YKK zip pull. Mesh lining stitched to the base of the bag and a 1mm PVC board reinforcement secured on the base.
Size: H400 x Depth100 x W270 mm.
Compartment 2:
Small pocket H230 x Depth 40 x W280 mm with side gussets, zip closure around top of pocket with one zip pull.
Urine collection bag.
With reinforced eyelets for hanging;
Kink resistant and transparent plastic inlet tube, length 85-95 cm, with universal connector and protective cap.
Medical grade plastic bag;
Capacity 2000 ml;
With graduations, every 100 ml to allow proper reading of the liquid contained in the bag.
Water sampling bag, polyethylene, sterile, self-stand-up bag type. The bag has a leak-proof closure with folding tap closing, 100ml and 4oz. Fill lines and a write-on strip.
Water Sampling bags, 100ml capacity, Sterile, Stand-up, easy and safe closing, without Thiosulphate tablets.
A robust support pillar fixes to a suitable table or bench(not supplied) with a low natural frequency. The pillar holds a cantilever that holds a model four-cylinder engine.
A bench- mounting model four-cylinder engine that shows primary and secondary forces and moments in reciprocating masses and how to balance them. The model engine has a crankshaft, connecting rods, bushes , pistons and a cylinder block. A separate Control and Instrumentation Unit (included) controls a motor that turns the engine crankshaft. This product is an excellent follow-on from the Static and Dynamic Balancing equipment.
Experiments:
Primary and secondary forces and moments for different crank settings.
Comparing calculated forces and moments with actual results.
The effect of adding additional mass to one or more pistons for any chosen crank setting.
Primary and secondary forces and moments in popular engine configurations - one, two and four cylinder.
This process is called balancing. The machine component is then balanced and runs without vibration. During imbalance, the principal axis of inertia or centre of gravity of the rotating machine component is outside its axis of rotation. Imbalances on rotating machines are often the cause of disruptive vibrations and noise. By adding or removing masses, the centre of gravity or the principal axis of inertia can be shifted so that both coincide with the axis of rotation.
Learning Objectives And Experiments:
Comparison of static, dynamic or general imbalance
Demonstration of imbalance vibrations at different speeds
Perform a balancing operation
Determine an imbalance.
Features:
Static and dynamic imbalance.
Representation of the fundamental processes involved in balancing.
Demonstration of a dynamic unbalance: wheels flutter. This can be adjusted by changing weights to the correct side. Demonstration of a static unbalance: wheels hop. The wheel axle, which hangs on two chains, is pulled down by springs. This can be adjusted by putting on a counter weight.
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Experiments:
The flexible design of the equipment allows the user to develop many other analysis and control exercises to suit their needs. It is good for extended or advanced control experiments, and is ideal for student project work.
Design of state re-constructors to obtain estimates of ball velocity and position
Design of analogue phase-advance compensators
Measurement of system dynamics by transient and closed-loop methods
Essential Services.
Bench space needed: 1.5 m x 750 mm
Electrical supply: 90 VAC to 250 VAC, 0.4 A, 50/60 Hz, with earth.
Ball And Hoop Apparatus
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The Ball and Plate Apparatus shows the problems of the of an unstable system. The apparatus consists of a plate pivoted at its centre so the plate can tilt in two directions.
The basic control task is to control the ball position. The ball is free to roll on the plate.
Stepper motors tilt the plate. A servo system with a stepper motor control card controls the motors. A camera with an intelligent vision system measures the ball position.
The equipment includes:
A data acquisition board for your computer
Camera with USB connection
Ball and plate model
Power supply
The data acquisition board fits into a suitable computer (not included) to link with the Ball and Plate Apparatus and control its motors.
Software (included)
Interface library for programming at the system level
Demonstration program with PID controllers
