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Asbestos Microscopes

Brunel BMDZ Stereomicroscope and LED Lighting

Brunel BMDZ Stereomicroscope and LED Lighting

Price: 618.00 / 692.16 (Excluding VAT at 20%)

The handling of gross specimens of asbestos requires a stereomicroscope that can fit within one of the leading air flow filter cabinets available for this purpose. The BMDZ stereomicroscope is tried and tested in this function over many years. It is best on a plain stand with an independent dual goose neck LED light source all of which fits neatly within the cabinet with the eyetubes protruding for ease of use. There is also sufficient height to allow the connection of a digital or HDMI camera for training purposes. The BMDZ is a full zoom trinocular stereohead with a magnification range of x7.5 to x45 with the x10 widefield eyepieces. The range may be extended to include x3.5 to x180 with additional objectives and eyepieces. The zoom mechanism is operated by side arm control knobs. The eyetubes have full interpupillary and dioptric adjustment and eyecups are supplied as standard. The unique features of this stereohead are the fact that the trinocular tube shares the images with the binocular eyetubes which allows the microscope to be used at the same time as the image can be viewed on a monitor or PC by others. Providing the correct adapter is used the two images are parfocal which makes the BMDZ an ideal stereomicroscope for teaching and demonstration. In addition the zoom mechanism has a lock control so that a predefined magnification can be set. This is particularly useful in an industrial environment where the instrument may be used by several operators.A plain stand without lighting. Pole coarse focus with a rack and pinion finer focus and a large working area with central dissection plate and stage clips (removable). A freestanding dual gooseneck LED lighting stand is included.

Brunel SP250A Polarising Microscope (PLM) Binocular

Brunel SP250A Polarising Microscope (PLM) Binocular

Price: 1,072.50 / 1,201.20 (Excluding VAT at 20%)

The identification of asbestos fibres requires the use of a polarising microscope that has a first order red retardation plate and a specialist x10 objective with a back stop. These are known as dispersion lens objectives and were also known by the original manufacturers name as a McCrone objective. These are used to examine the dark field colours shown by fibres that are immersed in various refractive index oils. The Brunel SP250PA is supplied with both a standard x10 and also a dispersion x10 objective together with a standard x20 and x40. All objectives are plan infinity corrected. The Brunel SP250PA binocular is a full specification polarising microscope including Bertrand lens, quartz wedge and wavelength retardation plates. This microscope is very competitively priced and manufactured exclusively for Brunel Microscopes to the highest standards. The binocular head incorporates a lyot depolarising filter to ensure true colour rendition when analysing with plane polarised light. The Brunel SP250PA specification features a rotating head with x10 widefield eyepieces one of which has a graduated crosshair, a push/pull Bertrand lens beneath the head, and a push/pull analysing filter that can be rotated through a full 360 degrees with a graduated scale. It also has a filter slot to accommodate the quartz wedge, quarter wavelength and full wave length retardation plates that are all provided as standard with this microscope, a rotating graduated circular stage, with clamping mechanism and lateral adjustment which allows each objective to be positioned centrally in the optical path, and a quadruple objective turret, with an excellent and very positive indexing mechanism, housing 160mm corrected plan x4, x10, x20 and x40 strain free polarising objectives, that have lateral adjusters in three of the objective positions to allow individual lateral centring. There is an abbe condenser, with rack and pinion focusing, filter carrier and iris diaphragm. The polarising filter is housed above the field lens with a swing out mechanism so that it can be removed easily from the optical path.

Brunel SP250A Polarising Microscope (PLM) Trinocular

Brunel SP250A Polarising Microscope (PLM) Trinocular

Price: 1,222.50 / 1,369.20 (Excluding VAT at 20%)

The identification of asbestos fibres requires the use of a polarising microscope that has a first order red retardation plate and a specialist x10 objective with a back stop. These are known as dispersion lens objectives and were also known by the original manufacturers name as a McCrone objective. These are used to examine the dark field colours shown by fibres that are immersed in various refractive index oils. The Brunel SP250PA is supplied with both a standard x10 and also a dispersion x10 objective together with a standard x20 and x40. All objectives are plan infinity corrected. The Brunel SP250PA trinocular is a full specification polarising microscope including Bertrand lens, quartz wedge and wavelength retardation plates. This microscope is very competitively priced and manufactured exclusively for Brunel Microscopes to the highest standards. The trinocular head incorporates a lyot depolarising filter to ensure true colour rendition when analysing with plane polarised light. The Brunel SP250PA specification features a rotating head with x10 widefield eyepieces one of which has a graduated crosshair, a push/pull Bertrand lens beneath the head, and a push/pull analysing filter that can be rotated through a full 360 degrees with a graduated scale. It also has a filter slot to accommodate the quartz wedge, quarter wavelength and full wave length retardation plates that are all provided as standard with this microscope, a rotating graduated circular stage, with clamping mechanism and lateral adjustment which allows each objective to be positioned centrally in the optical path, and a quadruple objective turret, with an excellent and very positive indexing mechanism, housing 160mm corrected plan x4, x10, x20 and x40 strain free polarising objectives, that have lateral adjusters in three of the objective positions to allow individual lateral centring. There is an abbe condenser, with rack and pinion focusing, filter carrier and iris diaphragm. The polarising filter is housed above the field lens with a swing out mechanism so that it can be removed easily from the optical path.

Brunel ABS320 Asbestos Fibre Counting Microscope

Brunel ABS320 Asbestos Fibre Counting Microscope

Price: 1,920.83 / 2,151.33 (Excluding VAT at 20%)

The Brunel ABS320 trinocular microscope complies with the test slide reading required by the Health and Safety Executive for asbestos fibre counting. These are robust industrial microscopes finished to a very high standard and with a very modern design. The light source is a Kohler LED unit integral to the base of the microscope. This makes the microscope an ideal instrument for phase contrast applications, and the trinocular ABS320 is, we believe, the lowest priced phase contrast microscope that meets the HSE specification for asbestos fibre counting that is currently available. A particular feature is the large rectangular mechanical stage with drop down co-axial controls. The ABS320 is specifically configured to provide the optical specifications needed for asbestos fibre counting. This consists of infinity corrected x10, x20 and x40 plan brightfield phase contrast objectives together with an easy to operate slider phase ring system in the condenser. This allows an easy change ‘toggle’ movement from x10 to x40 phase contrast presentation. For those who may want a full magnification range in phase contrast, a Zernicke phase condenser and further phase contrast objectives are available as accessories. x12.5 eyepieces, one with a focusing Walton and Beckett graticule, green interference filter and a centring phase telescope complete the specification. A complete and ready to go.

Brunel ABS320 Carrying Case

Brunel ABS320 Carrying Case

Price: 179.17 / 200.67 (Excluding VAT at 20%)

This is an excellent carrying case with suitcase style handles and wheels which makes the ABS320 truly portable

Brunel Asbestos Fibre Counting Software

Brunel Asbestos Fibre Counting Software©

Price: 296.67 / 332.27 (Excluding VAT at 20%)

Training in the recognition of fibres and structures produced by air filtration is at the core of the whole legislation covering the identification and removal of asbestos. One of the difficulties is being sure that the trainee is seeing the same particle as the trainer during the learning process. The Walton and Beckett graticule is part of the x12.5 eyepiece and cannot therefore be seen in live images captured by cameras attached to the trinocular phototube of the microscope. Our own IT team has addressed this issue and our Asbestos Fibre Counting Software overlays live images provided by a digital camera, that is capable of visualising the test slide bands, attached to the microscope (our own HDMI Digicam is ideal). The size of this overlay provides an image identical to that seen down the microscope in size and area covered. This allows the trainer to discuss with the trainee the finer points of recognition with both being confident that they are looking at the same thing. The software is customised to ensure correct positioning and size for each microscope/camera system and computer by our own IT staff, and the license price includes this commissioning