Resistance In Series & Paralle Apparatus

1.Sharp stereo erect image over a wide field of view. 2.45 inclined and 360 rotational binocular head with locked-in eyepiece.The left ocular-tube with diopter adjustment +5dp,The interpupillary distance is between 55-75mm 3.Zoom objective 1x-4x 4.ZTX-E series supplied with pillar style stand, ZTX-E-W series supplied with arm curved style stand.ZTX-3E series trinocular head. 5.Electric apparatus has CE approval 6.Power supply 110V/60Hz or 220V/50Hz 7.Each set packed in styorfoam and in an inner box.Three sets in one carton 8.A wide range of optional accessories. Optional accessories: 1.Eyepiece WH5x(+22mm),WF10x(+23mm)WF15x(+13mm),WF20x(+10mm) 2.Auxiliary objective 0.5x,0.75x,1.5x,2x 3.Figure eyepiece:VD-TV,VD-PC 4.Darkfield stage,+95mm 5.White/black working plate,+95mm 6.Fluorescent bulb 5W 7.Halogen bulb 12V/10W/LED 8.Ring fluorescent lighting 8W & 10W 9.Wooden cabinet with lock and key /Aluminium case Each set packed in styorfoam and in an inner box.Three sets in one carton

Conforms to is: 10050-1981, & astm d 4644 This apparatus is used to assess the resistance offered by a rock sample to weakening and disintegration when Subjected to drying and wetting in a slaking fluid, usually water. The equipment meets the essential Requirements of is:10050 -1981 & astm d 4644 and comprises the following: A motor drive with reduction gear mounted on a base board and capable of rotating four drum assemblies at a Constant speed of 20 rev/min approximately. The motor drive is totally enclosed in a hinged cover for quick Accessibility. An operating switch is provided in the cover. Two / four test drums made of brass wire mesh, with one end closed and having a removable cover on the other End. They have suitable couplings for mounting in the perplex water troughs. The drums are 140 mm in diameter And have an unobstructed length of 100 mm. Two / four perplex water troughs, accommodate one test drum each. These drums carry quick couplings on either End which are in turn coupled with couplings of the motor drive. The troughs allow 40 mm unobstructed clearance Below the test drum. A water level mark is provided in each water trough 20 mm below the axis of rotation of the Drum. Suitable for operation on 220 volts, 50 hz, single phase ac supply. Order code Lisc-557a Lisc-557b No. Of test drums 2 4

Supplier: Instrument product description nucleic acid packing, (tests/kit), me-0001rna isolation kit50, kit series of hepatitis virus, hr-0001-01hav real time rt-pcr kit, rna25, hr-0001-02, hd-0002-01hbv quantitative real time pcr kit, dna25, hd-0002-02, hd-0003-01hbv quantitative & ymdd mutation real time pcr kit, dna25, hd-0003-02, hd-0003-03, hd-0003-04, hd-0004-01hbv adefovir-resistant mutants real time pcr kit, dna25, hd-0004-02, hd-0004-03, hd-0004-04, hd-0005-01mutation in site 1896 of hbv precore real time pcr kit, dna25, hd-0005-02, hd-0005-03, hd-0005-04, hd-0006-01hbv genotype b&c real time pcr kit, dna25, hd-0006-02, hd-0006-03, hd-0006-04, hd-0007-01hbv cccdna real time pcr kit, dna25, hd-0007-02, hr-0008-01hcv real time rt-pcr kit, rna25, hr-0008-02, hr-0009-01hcv genotype real time rt-pcr kit

All types of laboratory measuring & control instruments: - pocket ph meter, water proof ph meter, conductivity meter - 3 in 1-tds meter, tds/conductivity meter, 4 in1- ph/tds/conductivity/ 0c Meter, table top ph meter, handheld - ph, conductivity - Do meters, mini panel resistively controller, ph electrodes - Thermo hygrometer, ir thermometer, pocket ir thermometer, handheld thermometer, pt100 thermometer, temperature data logger, temp./humidity data logger, - Dew point/wet bulb temp/%rh meter, thermo anemometer, moiture meter - Light intensity meter, sound level meter, refractometer, pressure switch, pressure transmitter, vacuum transmitter - Process controller, universal process indicator, pid controller, portable mv/vdc/ma calibrator - Multi meter, insulation tester, clamp meter, stroboscope, sound level calibrator, alcohol breath tester, online non-contact temp transmitter. Optical instruments: ò Medical microscope, inclined microscope, binocular microscope ò Digital video microscope, metallurgical microscope ò Trinocular research microscope, multipurpose stereo microscope ò Student dissection microscope, profile projector All types of laboratory glass wares: - Adapters such as û reduction, expansion, multiple adapters - Assemblies such as û reflux, reaction, distillation, preparation, fractionation, steam distillation, vacuum sublimation, solvent recovery - Apparatus such as - arsenic determination, particle determination, alkoxyl group determination, acetyl determination, bas analysis, bag burettes - Beakers such as û low form, graduated, tall form. - Bottles such as û b.O.D., reagent, dropping, washing, gas washing. - Burettes such as û single/double bore screwcock, center filling glass - Condensers such as û liebig, jacketed coil vertical, combined double coil, - Cylinders such as - measuring, nessler, crow receiver, desiccators with cover

1.Part no. Smd 3.2*2.5mm 4pad 2.Nominal frequency 16.000 mhz 3.Frequency tolerance at 25¨¬c ¡¾ 30 ppm 4.Frequency stability ¡¾ 30 ppm (-20¨¬c ~ +70¨¬c) 5.Mode of oscillation fund. 6.Operating temperature range -20¨¬c ~ +70¨¬c 7.Storage temperature range -40¨¬c ~ +85¨¬c 8.Load capacitance (cl) 20 pf 9.Shunt capacitance (co) 5 pf max. 10.Equivalent series resistance (esr) 40 ¥ø max. 11.Drive level 500 ¥ìw 12.Aging (at 25¨¬c) ¡¾ 3 ppm / year max. 13.Insulation resistance 500 m¥ø min. At dc 100 ¡¾ 10 v 3000pcs/reel & tape

Originated in the Nordic Countries Nord Test is a trademark of conformity assessment. The emphasis of Nord Test is to develop, promote and innovate Nordic test methods and pre-normative activity. SCOPE: This procedure is for determination of the chloride migration coefficient in concrete, mortar or cement-based repair materials from non-steady-state migration experiments. FIELD OF APPLICATION: The method is applicable to hardened specimens cast in the laboratory or drilled from field structures. The chloride migration coefficient determined by the method is a measure of the resistance of the tested material to chloride penetration. This non-steady-state migration coefficient cannot be directly compared with chloride diffusion coefficients obtained from the other test methods, such as the non-steady-state immersion test or the steady-state migration test. DEFINATONS Migration: The movement of ions under the action of an external electrical field. Diffusion: The movement of molecules or ions under a concentration gradient or, more strictly, chemical potential, from a high concentration zone to a low concentration zone. SAMPLING: The method requires cylindrical specimens with a diameter of 100 mm and a thickness of 50 mm, sliced from cast cylinders or drilled cores with a minimum length of 100 mm. Three specimens should be used in the test. TEST METHOD: Principles: An external electrical potential is applied axially across the specimen and forces the chloride ions outside to migrate into the specimen. After a certain test duration, the specimen is axially split and a silver nitrate solution is sprayed on to one of the freshly split sections. The chloride penetration depth can then be measured from the visible white silver chloride precipitation, after which the chloride migration coefficient can be calculated from this penetration depth. Apparatus: • Vacuum container: capable of containing at least three specimens. • Vacuum pump: capable of maintaining a pressure of less than 50 mbar (5 kPa) in the container. • Migration set-up: includes the following parts: – Silicone rubber sleeve: inner/outer diameter 100/ 115 mm, about 150 mm long. – Clamp: diameter range 105 - 115, 20 mm wide, stainless steel. – Catholyte reservoir: plastic box, 370 × 270 × 280 mm (length × width × height). – Plastic support. – Cathode: stainless steel plate about 0.5 mm thick. – Anode: stainless steel mesh or plate with holes about 0.5 mm thick. • Power supply: capable of supplying 0 - 60 V DC regulated voltage with an accuracy of ±0.1 V. • Ammeter: capable of displaying current to ±1 mA. • Thermometer or thermocouple with readout device capable of reading to ±1 °C. • Any suitable device for splitting the specimen. • Spray bottle. • Slide caliper with a precision of ±0.1 mm. • Ruler with a minimum scale of 1 mm. • Equipment for chloride analysis as required by the test method employed.

Fireplace glass Features: Our flat borosilicate 3.3 float glass sheet is equivalent with schott's borofloat series. Mechanical performance Density 2.23+/-0.02g/cm3 Thermodynamic performance Thermal expansion coefficient (0-300) 3.3+/-0.1x10-6k-1 Softening point 820+/-10 Strain point 516+/-10 Caloricity (20-100) 0.82kj x (kgxk)-1 Thermal coefficient 1.2wxmxk-1 Thermal shock resistance 180k Strengthening type 300k Identical temperature difference 100k Strengthening type 300 k Maximum working temperature short time(10h): 450 Chemical performance Water resistance iso719/din12111 hgb1/iso720 hga1 Acid resistance iso1776/din12116 1 Alkali resistance iso695/din52322 a2 Optical property Refractive index nd: 1.47384 Transmittance spectrum curve Electrical property Specific resistance lg 8.0+xcm at 250 Dielectric dissipation fraction tan = (1 megacycle at 20): 38x10-4 Dielectric constant s=4.7 Available thickness (mm): 1.50+/-0.20 4.00 +/-0.15 2.00+/-0.20 5.00+/-0.15 2.25+/-0.20 5.50+/-0.15 2.75+/-0.20 6.00 +/-0.15 3.0+/-0.20 6.50+/-0.20 3.30+/-0.20 7.50+/-0.30 3.80+/-0.15 8.00+/-0.30 We also do the follows to customers' requirements: Cutting Round corner Round edge Surface fine polishing Hole drilling Coating Surface printing and sand blasting Thermal bending Wooden crate package