Punjani Scientific Industries Malka Ganj, Delhi

A galvanized wire mesh with double turned edges to eliminate sharp wire ends, for use on tripod stands to protect and support glass vessels and spread the heat evenly while heating over a flame.      Ceramic Centre            Size         100 x 100 mm         125 x 125 mm         140 x 140 mm         150 x 150 mm 

Made from sheet metal and finished in white enamel. The stand can hold 6 Wintrobe tubes. Positions are numbered for easy identification. 

A concavo-convex shaped clear glass with ground edges 2 mm thick used normally as receptacle for material under observation or to cover beakers when boiling solutions. The meniscus shape prevents the glass from sliding off the beaker land also returns the condensate. Diameter 25 mm   1" 40 mm   1½" 50 mm   2"  70 mm   2¾" 75 mm   3"80 mm   3¼" 90 mm   3½"100 mm  4"125 mm  5" \150 mm  6"200 mm  8"

Stoddart type, made from spring steel wire with formed loop on either side of handle providing finger grip. Self closing jaws to take tubes from 6 mm to 32 mm diameter. Length - 17 cm.

In flat form plastic case with zero adjuster, having a dual metal scale with dual graduations, suspension ring and load hook. Capacity: 0 to 10 kgs (22 lbs).

Translucent, glazed supplied with lid.  Diameter   Height   NominalCap.     29 mm        19 mm      5 ml.     38 mm        19 mm      10 ml.     41 mm        25 mm      15 ml.     47 mm        28 mm     25 ml.     57 mm        37 mm     50 ml.     67 mm        45 mm     80 ml     82 mm        51 mm      130 ml.

Best quality solid red rubber stoppers having a Shore Hardness between 41 to 47 which are resistant to alkali, acid, and ammonia. Recommended for all general laboratory use. Available with 1 and 2 holes. 

Made from stainless steel.

Height : 9.0 cm

Die cast, black powder coated with anodized aluminum rod and chrome-plated thumb screw. The 4 prong jaws are cork-lined and can hold 15 to 65 mm diameter objects. Overall length: 250 mm. 

Equilateral and highly polished prisms. These economy model prisms are made from moulded glass and best suited for students performing basic experiments in refraction by the pin-sighting method.    Equilateral                                                       Side (mm) x Height (mm)                                                                 25 x 25                                                                 38 x 38                                                                 50 x 50 

Made from Borosilicate glass, these equilateral prisms are optically worked with 2 faces polished and most suitable for use with a spectrometer.      Equilateral side Height (mm)        25 x 25        32 x 32        38 x 38 The above sizes are available in the following Refractive Indices.Crown Glass                       Refractive Index 1.15                                                                  approx.Dense Flint Glass                     Refractive Index 1.62 approx.Extra Dense Flint Glass             ReRefractive Index 1.65 approx.Double Extra Dense Flint Glass     Refractive Index 1.70 approx. (All Refractive Indices mentioned are approximate)

Material: Polypropylene These Troughs, made of polypropylene, are autoclavable and are available in different sizes. These can be used for a wide range of purposes including storage, sterilizing & drying labware etc.   Æ -180 x h-60 mm   Æ -200 x h-100 mm   Æ -250 x h-100 mm

Made from clear neutral glass, circular with a flat bottom used for collection of gases over water. It is especially suited for lecutre demonstrations. Diameter    Height  100      x   150 mm  100      x   200 mm  100      x   250 mm  125      x   250 mm  125      x   300 mm  150      x   150 mm

This is a stable, non-corrosive, detachable Stand which can hokd 28 pipettes with maximum dia 14 mm. The heavy base measures 225 mm in diameter and a Polypropylene coated square rod measuring 375 mm in length is screwed into the base. the top disc that can be fixed on the rod has holes for holding pipettes while the lower one has pilot holes where the pipette tips rest and liquids drain down to the base. These discs can be adjusted on the rod according to the length of the pipette. The arrows provided on the discs should be kept parallel to ensure that corresponding holes are being centered. 

Moulded in Polypropylene, this unique Stand holds a maximum of 94 pipettes and rotates on a central vertical axis for convenient selection of any particular pipette. The lower rotating disc has four concentric troughs with tapered sides and open bottoms which cradle the pipette tips protectively and permit water drops to run off. The upper disc has a grid pattern concentric with the bottom disc and keeps the pipettes vertical. Liquids draining off the pipettes are retained on the top of the stationary base by the outer ring. This stand can be easily disassembled & reassembled. 

This detachable Stand can hold 12 pipettes, 6 on each side, in a horizontal position. Moulded in Polypropylene, this autoclavable stand has two sides which are attached to each other with three metallic rods coated with Polypropylene. This stand can be easily disassembled for space saving storage. 

These pipette fillers replace the hazardous practice of sucking liquids into pipettes by mouth. It comprises of a bulb with 3 pinch valves that control the influx and efflux of pipette contents. 01        Bulb diameter 50 mm.02       Bulb diameter 60 mm.

Made from stainless steel.

Made from finest quality sheet glass having a uniform thickness and ground edges. The slides are pre-cleaned and precision measured to 75 x 25 x 2mm, having 1, 2 or 3 cavities of 16 mm diameter and 0.8 mm deep.                  Capacity      01          1 Concavity      02           2 Concavities      03           3 Concavities

Made from finest quality sheet glass having a uniform thickness and ground edges. The slides are pre-cleaned and precision measured. Size: 75 x 25 x 1.35mm (l x b x t)                            Capacity            01         Plain          02        Frosted

Made from soft wood with hinged lid, lacquer polished, to hold microslides of 75 x 25 mm The slide slots are numbered for easy reference from the index.                  Capacity01                  Holds 25 micro slides02                 Holds 50 micro slides03                 Holds 100 micro slides

A plastic box with removable lid having numbered slots to hold micro slides of 75 x 25 mm. The lid has an index for easy reference.01            Holds 25 micro slides02           Holds 50 micro slides03           Holds 100 micro slides

Mercury filled thermometers with a strong reinforced bulb in white or yellow enamelled back stem of 5 - 7 mm diameter and hanging hook. Clear, permanent, engraved, black graduations. Accuracy ± 1ºC. Individually supplied in a cardboard case. Range: -50 to +50ºC, 0.5º divisions, length 300 mm. Range: -50 to +50ºC, 1º divisions, length 300 mm. Range: -10 to +110ºC, 0.5º divisions, length 300 mm. Range: -10 to +110ºC, 1º divisions, length 300 mm. Range: 0 to +250ºC, 1º divisions, length 300 mm. Range: 0 to +250ºC, 2º divisions, length 300 mm. Range: 0 to +360ºC, 1º divisions, length 300 mm. Range: 0 to +360ºC, 2º divisions, length 300 mm. 01 Calibrated for total immersion. 02 Calibrated for 76 mm immersion 

Double convex lens fitted in a brass frame with a plastic handle.Lens Diameter    Focal Length    Magnification  50 mm                   20 cm               2..25X  50 mm                   10 cm                 3.5X  60 mm                    20 cm               2.25X  75 mm                    20 cm                2.25X  100 mm                    20 cm                2.25X