~ C_H_E_M_ I_S_T_R_Y DPTII( BASIN EVAPORATING 1200 BALANCE CHEMICAL ffl Advanced, Beam engraved with a wider scale, for use with 10mg rider, balancing screws, agate bearing and knife edges, Fitted on a wooden board in a polished wooden case with glass windows. m Cap: 200gm, sensitivity 0.5 mg. 1202 BASIN,EVAPORATING I;) Porcelain, round form, with lip, both sides glazed. Diam in mm Capacity in ml. a) 25 8 b) 40 15 c) 50 20 d) 60 40 e) 75 100 f) 85 125 g) 100 175 h) 110 275 i) 125 450 j) 140 500 k) 150 850 1204 BASIN, EVAPORATING l!i Porcelain, Flat form, with lip, both sides glazed. Dia in mm Capacity in ml. a) 60 25 b) 75 50 c) 100 100 d) 125 260 e) 150 380 f) 175 600 g) 200 1000 h) 250 1900 Micron Instrument Industries., PIN 133001. INDIA.
C_ H_E_M_I_S_T_R_Y ~ WATER BATHS OPTII( 1206 BASIN FUSED SILICA/QUARTZ r.:.1 Round bottom, with spout, translucent. Ht. mm Diam.. mm Cap. ml a) 23 55 20 b) 27 75 45 1208 BASIN FUSED SILICA/ QUARTZ Deep bottom, with spout, translucent. Ht.. mm Diam.. mm Cap. ml a) 18 40 10 b) 25 50 15 c) 30 60 45 1210 BASIN, FUSED SILICA/QUARTZ Flat bottom, with spout, translucent. Ht.. mm Diam.. mm Cap. ml a) 15 69 20 b) 15 79 25 1212 BATH, SAND Shallow form, made of thick G.I. Sheet Dia.. mm a)125 b)150 C) 200 1214 WATER BATH l;j vertical side, fitted with concentric rings. Dia in mm. a) 125 b)150 c)200
~ DPTII( CHEMISTRY I WATER BATH 1216 WATER BATH ELECTRIC m Aluminium body, plastic feet, concentric rings, with constant level device and lkw heater with automatic cut-out, Size 145 x 200mm (Ht x Diam) Complete with connector plug and lmeter of 3 core wire. 1218 WATER BATH, RECTANGULAR, ELECTRIC l;j Single wall, chamber made of stainless steel, having 75mm holes and concentric rings at top with tubules for for water level arrangement, lkw heater with cut out device, Complete with connector plug and 1 meter of 3core cable. 1220 WATER BATH, RECTANGULAR, ELECTRIC DJ Double walled, inner chamber of stainless steel, out made of stove enamled miled steel. Top has 75mm holes with concentric rings, temp range upto l00degree cent. Accuracy +/-1 degree cent. Heater fitted with automatic cut out device, thermostate, two indicator lights, mains switch. Works on 220 to 240 volts, 50 Hz. Chamber Size, mm (a) 300 x 250 x 100 (b) 425 x 325 x 100 (6 holes) (12 holes) 1222 CYLINDER, MEASURING rn Moulded in polyproplyene. Autoclavable, graduated having board base provides good stability. Capacity. ml Subdivision. ml. a) 10 0.2 b) 25 0.5 c) 50 1 d) 100 1 e) 250 2 f) 500 5 g) 1000 10 e) 2000 20
C_ H_E_M_I_S_T_R_Y ~ BURNERS OPTII( 1442 BUNSEN BURNTER WITH STOPCOCK. ffl Same as above but fitted with a stopcock in the inlet tube to control flow of gas. 1444 MAKER BURNER l;j for high temperature work, Nickel plated burner tube with perforated plate of 25mm dia, at top, which provides flame stability and ensures high and evenly distributed temperature. With rotatable air regulator around the jet. Heavy wide metal base of 80mm dia. With riffled gas inlet, overall height 150mm. 1446 FLAME SPREADER l!j For burner top, width 50mm, for flat wide flame. 1448 TECLUEBURNER Gives a very hot flame, Heavy gauge chrome plated brass tube of 12mm dia. With air regulating disc. Over all heiahg 160mm appx. a) Without Stopcock. l!l b) With Stopcock. 1;11 1450 BATSWING BURNER Cl With non adjustable jet, which gives a hot, wide, flat flame suitable for sterlising inoculating loops, Glassworking, etc. Tube dia 200 x 10mm, Base Dia 80mm height 210mm. enamel painted. Overall 1452 SPIRIT LAMP GLASS ~ With metal wick holder and glass stopper/ cap. a) 60ml. b) 125ml.
~ DPTII( CHEMISTRY I LAMPS 1454 SPIRIT LAMP lml With metal, die pressed, with woocen wick in metal holder, screw on cap. Capacity: 100 ml. a) Aluminium b) Brass c) Stainless Steel 1456 CENTRIFUGE,ELECTRICAL m Having a heavy spun aluminum grade bowl and cover, which completely encloses the head. Motor and controls are housed below the bowl for safety. The internal and external surfaces are finished with a smooth easily cleaned stove enameled paint. Motor is supported on flexible rubber mounting. Provided with 5-speed control switch. Max speed 3500 rpm. Works on 220V50Hz. AC. Capacity R.P.M Type of Head A. 4 tubes of 15ml. 3500 Swing out B. 6 tubes of 15ml. 3500 Swing out C. 4 tubes of 15ml. 6000 Angle D. 6 tubes of 15ml. 6000 Angle 1458 CENTRIFUGE, HAND l!i Hand driven machine consisting of a die- casted parts and a steel pinion and a worm drive with removable handle. Screw clamps the machine to the bench. Finished in white color suitable for 15 mi. glass tubes. A) 2 Tubes of 15ml. B) 4 Tubes of 15ml.
C_ H_E_M_I_S_T_R_Y ~ CENTRIFUGES OPTII( 1460 CENTRIFUGE TUBE Glass, capacity 15ml. a) Conical bottom, b) Round bottom 1462 CENTRIFUGE TUBE CONICAL BOTTOM l;i Moulded in polypropylene, clear, autoclavable. With screen printed graduations. Available in sterilized and non sterilized. Capacity: a) 15ml. in pack of 100 pcs. b) 50ml. in pack of 100 pcs. 1464 CENTRIFUGE TUBE ROUND BOTTOM l!j Moulded in Polypropylene. These tubes have good clarity and are autoclavable. Capacity: a) 16ml, Pack of 50 Pcs. b) 50ml, Pack of 50 Pcs. 1466 MICRO CENTRIFUGE TUBE l!l These Micro Centrifuge Tubes, moulded in Polypropylene have built in plugs, which snap fit and make these tubes leak proof. These tubes can withstand high forces of an ultra centrifuge and can be used for transmitting sample for microanalysis. Capacity: a) 0.5ml, b) 1.5 1468 RACK FOR MICRO CENTRIFUGE TUBE ~ Moulded in Polycarbonate this autoclavable rack for both 0.5ml and 1.5 ml micro centrifuges tubes. It has 108 holes to hold the tubes. The holes are numbered & lettered for easy identification.
~ C_H_E_M_ IS_T_R_Y - -- DPTII( CLIP, MOHAR 1470 FLOAT RACK ffl This float Rack moulded in Polypropylene is quite compact, autoclavable and can hold centrifuge tubes for incubation in water baths. Easy to load, these are essential in microbiology & immunology labs. The surface of the rack has raised alpha-numeric index for easy identification and has a central rod handle for convenient lifting. 1472 CLIP, MOHR CJ Nickle plated for use with rubber tubes. a) Iron b) Brass 1474 CLIP HOFFMAN l!1 Brass, nickle plated, with projection plate. 1476 CRUCIBLE GOOCH l!l Porcelain, tall form, all glazed except outer bottom 1478 DESSICATOR, VACUUM ~ Moulded from Polypropylene and polycarbonate. The top dome, moulded in rigid and transparent, crystal clear polycarbonate. The knurled knob on the top provides easy handling of the dome. The lower part is made of polypropylene. fitted with PTFE plug in different Diam: a)150 b)200 c)250 1480 DESSICATOR PLAIN Iii Plain desiccators are same as above but with PTFE plug in different diameters in mm.. a) 150 b) 200 c) 250
C_ H_E_M_I_S_T_R_Y ~ HOFFMAN VOLTMETER OPTII( 1496 HOFFMAN VOLTAMETER m For determination of the decomposition of water, determnation of chemical composition by electrolysis and with application in the evaluations of the electrochemical equivalent of hydrogen. The glass unit has two connected limbs, each graduated 50 x 0.2 ml, with stopcocks, with a tube and a funnel shaped reservoir bulb. a)borosilicate glass, b)neutral glass with the following accessories: (a) PLANTINUM ELECTRODES CJ Platinum wire or foil fused into glass rod with internal lead, with rubber stopper and glass protection tube, per pair. (b) CARBON ELECTRODES l'1 Carbon electrodes in rubber steppes, fitted with terminals, per pair. (c) METAL STAND l!l Cast iron stove enameled base, chrome plated rod, one clamp and one support for holding Hoffman Voltameter. 1498 FILTER PAPER ~ Suitable for quantitative work, School quality. Pack of 100 circles. Diameter in cm: a) 9 b)11 c)12.5 d)15 e)18.5 f)21.5 g)24 1500 FILTER PAPER ~ General purpose paper, equivalent to WHATMAN No.1. Pack of 100 circles. Diameter in cm: a) 9 b)11 c)12.5 d)15 e)18.5 f)21.5 g)24
~ DPTII( CHEMISTRY I PH PAPERS 1502 PAPER TEST 111 EKI- make, cobalt chloride. Supplied in plastic case of 5 books each with 20 leaves of size 63.5 x 10 mm. Total 100 leaves. Colour: (a) Red (b) Blue 1504 ph INDICATOR PAPER i;j ph indicator paper, universal, including color scale, pack of 100 leaves.size: 68.5x10mm. (a) ph 1 to 10 (b) ph 10 TO 20 1506 COMPARATOR INDICATOR l!i Box of 10 books of 20 leaves 65x10mm. Color matching charts are printed on the cover of each book. Wide Range Full Range Specific Range 2.0 to 10.5 ph 1.0 to 14.0 ph 2.0 to 4.5 ph 3.5 to 6.0 ph 5.0 to 7.5 ph 6.5 to 9.0 ph 8.0 to 10.5 ph Multi Range contains each above of 6 Ranges. 1508 FILTER PUMP l!l Borosilicate glass, riffled inlet and outlet tubes, length 215mm. Outer dia of upper tube 18mm and lower tube dia 10mm. Outer dia of side tube 8mm.
C_ H_E_M_I_S_T_R_Y ~ FILTERS PUMPS OPTII( 1510 FILTER PUMP Im! Made of brass, Nickle plated with water inlet nozzle and vacuum nozzle. Inlet tube diameter 9mm, Outlet tube diameter 11mm, vacuum nozzle 7mm. 1512 FUNNEL FILTER l!j Polythene, uneffected by acids and alkalies etc. These long stem funnels have smooth walls, 60degree cone angle and external ribs to prevent air lock. Diameters in ems.: a) 5 d) 10 b) 6.25 e) 15 c) 7.5 f) 20 1514 FUNNEL FILTER l!i Made from Borosilicate glass, Plain, 60degree angle. in different diameters in ems: a) 5 b) 6.5 c) 7.5 d) 10 1516 FUNNEL FILTER ffl Porcelain, with fixed perforated plate. Glazed. Diameter in ems. a) 3 d)10 b) 5 e) 12.5 c) 7.5 f) 15 1518 PLATINUM WIRE 1;11 Platinum wire fused into glass handle, protected in a glass tube. Iii 1520 WIRE HOLDER/ LOOP HOLDER Iii! Nickel plated brass with screw chuck which accepts wire on handle upto 24 SWG.
C_ H_E_M_I_S_T_R_Y ~ FITTING MENTLE OPTII( 1588 GAS TUBE Graduated, neutral glass, sealed at one end. Capacity: 50 x 0.2 ml. 1590 GAS WASHING BOTTLE, DRESCH EL'S m Borosilicate glass, inlet and outlet tubes in a stopper which fits the bottle having interchangeable 19/26 ground glass joint. Capacity, ml. a) 125 b) 250 1592 GAUZE, IRON l!j With folded edges. Size in mm 125 X 125 150 X 150 Asbestos Centre A C Ceramic Centre B D 1594 HEATING MANTLE l'1 Glass yarn heating net, in one piece aluminium body, with mineral wool lagging, working on 220-240 V AC, to work upto 350 degree C. with Energy regulator and On/Off switch. Capacity Rating Ml. a. 50 80 Watt. b. 100 80 C. 250 150 d. 500 200 e. 1000 300
~ ----------------------- DPTII( 1596 HEATING MENTAL NET in different capacities in ml. a)l00 d)lo00 b) 250 e)2000 c)500 1598 MELTING POINT APPARATUS m Useful for determining melting points up to 300 degree C. Consists of an aluminum block which accepts three capillary tubes and a thermometer. The block is heated by two heating elements which are provided with a built-in energy regulator. The lamp provides uniform & shadow less illumination of samples. A lens is provided for the capillaries. Heating block & controls are enclosed in a metal box. Works on 220V, 50 Hz supply. 1600 SOXHLET EXTRACTION HEATING UNIT. Unit comprises a compact box section of mild steel housing. Heating mantles consist of coiled element supported by glass yarn net. These flexible units ensure close contact with flask surface and even distribution of heat. The housing has two vertical and two horizontal rods with clamps to fix glass apparatus. Each heating mantle is provided with an enegy regulator and indicator lamp. Without glass parts. a) Unit of three mantles, 375 watt. 1602 HOT PLATE l;j Laboratory use, round top, dia 20 ems approx. 1.5 kw, heats upto 350 degree C. Provided with indicator lamp and 3-position rotary switch working on 220-240 Volts A.C., Maximum 350 C. Fitted with continuous variable energy regulator.
C_ H_E_M_I_S_T_R_Y ~ OPTII( 1604 HOT PLATE, RECTANGULAR ffl For temperatures upto 400 degree C, With energy regulator for continuous variation of temperature. The maximum surface temperature is 300 C. With two indicating lamps one for indication of mains supply and other for indication of the working of the hot plate. In different hot plate sizes in ems. a) 30 X 25 C) 45 X 30 b)40x25 d) 40 X 45 1605 INCUBATOR UNIVERSAL l;i Double walled, inner chamber made of thick anodized aluminum or stainless steel and outer of mild steel. The gap of 75 mm between two walls is filled with glass wool for heat insulation. The door has double viewing to permit observation without opening. Heating elements are placed in ribs at the bottom and at sides. Built-in L-shape horizontal thermometer Oto 110 degree C. Temperature is controlled by a precision thermostat from 5 degree C above room temperature to 70 degree C. with sensitivity of +/- 1 degree C. Complete with 2 indicator lamps, adjustable perforated shelves. Works on 220-240 V, 50 Hz. Supplied complete with 1.5 meter of 3-core cable. Size, inner No. of Aluminum Stainless Chaber (mm) Shelves Steel. a)300x300x300 2 A B b)275x400x275 2 C D c)350x350x350 2 E F d)400x400x400 2 G H e)600x450x450 2 I J f)600x600x600 3 K L g)900x600x600 3 M N h)900x900x900 3 0 p Optional features can be provided: a) Air Circulating fan. b) Digital temp. Indicator c) Timer 0-24 hours. d) Digital temp indicator cum controler.
~ ----------------------- DPTII( 1606 UNIVERSAL OVEN lml For heating up to 250 degree C. Inside chamber made of thick aluminum or stainless steel. Outside made of mild steel. The gap between the walls being filled with glass wool. Heating elements are placed in ribs at the bottom and sides of chamber for uniform heating. Thermostatic control is provided which gives a temperature fluctuation of not more than +/- 1 degree C read by an L-shape thermometer. The insulated door closes firmly against heat resistant gasket and is provided with handle with spring latch. Front panel has ON/OFF switch, 2 neon indicators and dial for temperature setting. Unit provided with 1.5 m of 3- core cable. Works on 220-240 Volts A.C. Size, inside No. of Aluminum Stainless Chamber (mm) Shelves Steel 300x300x300 2 A B 350x350x350 2 C D 450x450x450 2 E F 450x600x450 2 G H 600x600x600 2 I J 600x900x450 3 K L 600x900x600 3 M N OPTIONAL ACCESSORIES FOR ABOVE a) Timer b) Air Circulating fan c) Digital temperature indicator d) Digital temperature controller-cum-indicator.
1607 THERMOMETERS, MERCURY m Mercury in Glass, with white enamelled back, with reinforced bulbs. Packed in cardboard case. Range Range Length (a) O to 50 C 10 300mm (b) -10 to 110 c 10 300mm. (c) -10 to 110 C 112 300mm (d) 0 to 150 C 10 300mm. (e) 0 to 200 C 10 300mm (f) 0 to 250 C 10 300mm. (g) o to 300 c 10 300mm (h) Oto 360 C 20 300mm. (i) 0 to 400 C 20 300mm (j) 0 to 120 C 10 300mm. (k) o to 220 c 10 300mm (I) o to 400 c 20 300mm. 1608 THERMOMETERS, RED SPIRIT FILLED l;j Range Range Length (a) 0 to 50 C 10 300mm (b) O to 50 C 112 300mm (c) -10 to 110 C 112 300mm (d) 0 to 120 C 10 300mm (e) 0 to 150 C 10 300mm (f) o to 400 c 10 300mm 1609 THERMOMETER BI-METAL DIAL TYPE. l!1 Stem length 30cm, Stem made of brass, Dia of Dial (i) 65mm (ii) 100mm. a) o-110 c b) 0-150 C d) 0-250 C e) 0-300 C c) 0-200 C f) 0-350 C
~ ----------------------- DPTII( 1610 MUFFLE FURNACE lml Made of thick mild steel sheet reinforced with iron angles. Heating chamber consisting of rectangular horizontal shape totally enclosed muffle baked at 1000 deg. C. Heating elements made of Kanthal wire special high temperature alloy are used for uniform heating. The furnace is equipped with a pyrometer of 1200 degree C range with mounting bracket. Furnace can be operated continuously upto 900 deg. C. Temperature is controlled by sunvic simmerstat energy regulator fitted in front of furnace with two indicating lights. Front panel at lower portion of furnace is fitted with neon lights which glows while furnace is ON. Supplied with fuse, two meter long main lead. Operates on 220Volts A.C. Muffle size: a. 9" X 4" X 4" b. 10" X 5" X 5" C. 12"x5"x5" d. 12"x6"x6" d. 12"x8"x8" e. 14"x7"x5" f. 19"x7"x5" g. 18"x9"x9" 1612 MAGNETIC STIRRER l;j Housed in robust sheet metal casing ad suitable for stirring upto 2 It. Stepless speed control is fitted on front panel. 1614 MAGNETIC STIRRER WITH HOT PLATE Same as above but fitted with an aluminium hot plate with a heating capacity 300watt controlled by an regulator. 1616 WATER STILL ~ Wall mounting, Manesty type, designed for continous automatic and efficient production of high quality distilled water. The boiling chamber, condenser pipe, tube, weir assembly and inner baffles are made of Stainless Steel. The outer lid and inner baffles cup are made of borosilicate heat resistant glass. Electric elements are fitted with protective cutouts. Supplied with
C_ H_E_M_I_S_T_R_Y ~ OPTII( brackets for wall mounting and operating manual. Operates on 220-230 V A.C. Output :3.25-4.25 liters per hours Full contents of boiling chamber: 6.5 Liters Optional Accessorey: Spare set of Heating elements. 1618 REFRACTOMETER, HAND m Convenient to use. These are Erma type built-in ocular scale gives direct reading for percentage of sugar density. Accuracy: 2% Range: a) Oto 32%, b) 28 to 62%,c) 58 to 92% 1620 REFRACTROMETER, ABBE for quick examination of efractive indices & mean dispersion of liquids, solids and powders. Comprising Abbe double prisms, with thermostat, compensator, telescope mirror and radial arm with vernier. Range nd 1.3000 to Nd 1. 7000 in steps of 0.001, sugar percentage Oto 95% in step of 1 division. 1622 AIR PUMP l;j Single action, metal pump barrel, with piston and wooden handle, attached to metal plate with stopcock, air inlet screw and connection for tubing 11 on wooden base. Dia of Plates in mm : a) 125 b)150 c)250 1624 VACUUM PUMP, ROTARY, OIL-SEALTED DJ General purpose, single stage with low level of vapour emission. Can be used as a pressure device also. Direct drive, compact construction, displacement 32 liters/minute, ultimate vacuum without gas ballast 0.1 mm of mercury, motor rating 0.25 HP, rpm 1425, supplied with 1 meter 3-core mains cable and 1.5 liter oil. For use on 220-240 V, 50 Hz.
~ ----------------------- DPTII( 1626 VACUUM PUMP m Oil free vacuum pump, Oil less construction of piston. Most versatile, compact vacuum pump, permanently lubricated ball bearings, maintenance free. Portable light weight. Built in micro air filter, fitted with metal plate. Having max. pressure 40 PSI, vacuum23" of Hg. Free air 40 Ltrs per min, Delivery 1.4 CFM, Motor H.P. 1/3, watts 250, weight 7.5kg. 1628 MAGDEBURG HEMISPHERES ra To demonstrate pressure of atmosphere, fitted with stopcock and handles. Made of Cast iron, hammertone coloured. In two sizes in Dia A) 62mm B) 75mm 1630 MAGDEBURG HEMISPHERES l!i To demonstrate pressure of atmosphere, fitted with stopcock and handles. Made of Brass nickle plated. In two sizes in Dia A) 62mm B) 75mm 1632 GLOVES DJ Asbestos, cotton lined with individual fingers & thumb, length 300 mm, per pair. 1634 GLOVES,LEATHER To provide protection for hands and forearms against exposure to heat, per pair. 1636 GLOVES,POLYTHENE Disposable, medium size, pack of 100 pair.
1638 GLOVES lf.:.1 PVC, medium duty, flexible with cotton lining, length 270 mm, per pair. 1640 GLOVES,RUBBER General purpose, with raised surface pattern for wet grip supplied in pairs. a)medium b)large 1642 GLOVES,ELECTRICAL Seamless, shock proof, rubber hand gloves for electrical purposes. Test voltage 5,000 V, size 355 mm, per pair. 1644 EYE SHIELD l;j Simple, with adjustable head band. 1646 GOGGLES l;j Wide view, with PVC frame, can be worn over spectacles. 1648 SHAKER,FLASK Wrist action, robust, with AC/DC universal motor, to hold 4, 6 or 8 flasks from 100 ml to 500 ml capacity. a) Without Timer b) with a timer, 0-60 minutes. 1650 SHAKING MACHINE, RECIPROCATING, KAHN TYPE Complete with carrier for flasks, test tube racks, bottles etc. Speed is unaffected by normal line voltage fluctuations or loading within specified limits. 0.25 HP motor, speed 275 strokes per minute. Carrier size 500 x 325 x 100 mm.
~ ----------------------- DPTII( 1652 SHAKING MACHINE As above but speed variable by mechanical speed controller, 150-250 strokes per minute. 1654 SIEVES IE:.1 200mm diameter, polished seamless brass frame. Each sieve is marked with nominal aperture. Stainless steel mesh Mesh size in mm: a) 4.75 b) 3.55 c) 3.35 d) 3.00 e) 2.80 f) 2.50 g) 2.36 h) 2.00 and various others up to 0.040mm 1656 SIEVE SHAKER HAND OPERATED Accommodates up to 6 sieves of 200 mm diameter, with lid and receiver. Operated by a heavy flywheel hand wheel. 1658 SIEVE SHAKER, MOTORIZED With mechanical action that imparts a circular motion to material and at the same time an offset cam produces a vertical movement that assists in continuous clearing of the apertures. Can accept 6 sieves with lid and receiver of 200 mm diameter. Works on 220 V, 50 Hz supply. a) Without timer. b) As above, but with 0-60 minutes timer. 1660 SOIL TESTING KIT ffl With reagents, for estimation of ph, phosphorous, potassium, nitrogen and organic carbon, with a handbook containing simple instructions for use and also giving useful information on major requirements of any soil. Ready for use kit.
C_ H_E_M_I_S_T_R_Y ~ OPTII( 1662 SPATULA Plastic, spoon form on one side and the other end is flat, (a) 150mm Lt. (b) 200 mm in Lt. 1664 SPATULA l;j Steel made, Flat blades on both ends. lengths in mm in. a. 125 b. 150 c. 200 1666 SPATULA l'1 Stainless steel, one end flat other end spoon form. Length in mm. a) 125 b) 150 c) 200 1668 SPATULA (CHATTAWAY'S) DJ Stainless steel, raised center section, one end flat and bent up, other end formed into a scoop, Stainless steel, length 200 mm. 1670 SPATULA WITH HANDLE ~ Stainless steel blade with polished wooden handle. Blade length in mm: a) 100 b) 150 c)200 1672 SPHERES,GLASS For use in crystal models & organic chemistry Approx diameter in mm. a) 5 b) 8 c) 10 d) 12
~ ----------------------- DPTII( 1714 RETORT RING ffl Made of steel with stem. Diameter, mm: a) 50 b)75 c) 100 1716 RETORT RING l;j Iron ring with boss to accept rods up to 12 mm. Boss is fitted with a plated thumbscrew. Distance between centre of ring and supporting rod is 12 ems. Ring Dia in mm: a) 50 b) 75 c) 100 1718 CRUCIBLE TONGS 1!J Nickel or black plated steel wire, rolled flat at joint, jaws corrugated on inside, with bow. Two types of crucible tongs are available. Jaws corrugated inside. A) Straight B) With bow Metal Length mm. Length mm. a) Iron 150 b) Brass 150 c) Stainless steel 150 200 200 200 1720 TONG BEAKER For the safe handling of beaker containing hot solutions. The jaws are asbestos/ silicon covered to ensure firm grip. Overall length of tong 30cms. Made of stainless steel. a) Jaws with asbestos m b) jaws with silicon cover. ~ 1722 FLASK TONGS Cl Stainless steel, cork lined, rectangular jaws. Length in mm. a) 250 b) 300