vernier conductivity probe


You need to be comfortable and find the proper fit, VWR wants to help find the best pipette for you. You can load saved calibrations using any of the Vernier data-collection programs. Environmental science students use it to measure TDS, total dissolved solids. 0000002950 00000 n It. Durable, low-linting, & available in white or blue. Vernier Conductivity Probe 2022 FORTUNE Media IP Limited All rights reserved. Time: 15:05, Quick and easy calibration using our software, Alternating current at its electrodes prevents polarization and electrolysis, Epoxy-body graphite electrode eliminates worry about corrosion of metal electrodes. Description: ABS body, parallel carbon (graphite) electrodes 2022 SchoolMart. endobj Biology teachers can use this probe to demonstrate diffusion of ions through membranes. Alternatively, you can do a quick two-point calibration: the probe is left out of solution for one calibration point (0 S/cm) and is placed in a known standard (1000 S/cm solution is provided) for a second calibration point. All orders $24.99 or less (pre-tax) will be subject to an additional $7.00 handling fee. Shipping costs are estimated at the time of online order. High Range 10S/cm (5mg/L TDS) LabQuest 2 Alternating current at its electrodes preventing polarization and electrolysis, reducing contamination of solutions. This has many applications in chemistry, biology and environmental science. Temperature Range (can be placed in): 0-80C Water Depth Sampler (WDS), User Manual: https://www.vernier.com/manuals/con-bta/ Orders for chemicals and hazardous materials will only be accepted from educational and research institutions; we will not ship chemicals to individuals. TI-Nspire Lab Cradle. Available in 8.5x11, A4, pre-hole punched and multiple colors. The probe also has a fast response time, reaching 98% of full value in less than five seconds. 0000003506 00000 n Visit. Response Time: 98% of full-scale reading in 5 seconds, 100% of full-scale in 15 seconds <> determines the total concentration of ions in a sample. Fog-free, soft sided, and splash resistant. Go!Link LabQuest Mini Dimensions: 12mm OD and 150mm length As our customers needs have evolved, so have our capabilities. 90 mL bottle of 1000 S/cm NaCl standard solution. 0000000016 00000 n It has built-in temperature compensation, which allows you to do your calibrations in the lab, and then make measurements outdoors without temperature changes affecting conductivity readings. We have become experts in scientific operations, improving performance with sophisticated solutions and providing guidance on best practices. Vernier products are designed specifically for education and held to high standards. Terms are net 30 days from the date of invoice. Avantor Services provides a wide range of specialized services and digital solutions to help you solve complex challenges. Biology teachers can use this probe to demonstrate the diffusion of ions through membranes. Chemistry students can use it to investigate the difference between ionic and molecular compounds, strong and weak acids, or ionic compounds that yield different ratios of ions. The probe can, Educational flash photolysis spectrometer (40 pages), Ammonium ionselective electrode (6 pages), Manual will be automatically added to "My Manuals", Measuring Instruments Vernier COL-BTA Manual, Measuring Instruments Vernier 3D-BTA Manual, Measuring Instruments Vernier Go Direct Energy GDX-NRG Manual, Measuring Instruments vernier Go Direct SpectroVis Plus Manual, Measuring Instruments Vernier HD-BTA Owner's Manual, Measuring Instruments Vernier SLM-BTA User Manual, Measuring Instruments Vernier VSP-FP Reference Manual, Measuring Instruments Vernier Go Direct GDX-RAD Manual, Measuring Instruments Vernier DRM-BTD Quick Start Manual, Measuring Instruments Vernier BlueView Transilluminator How To Use, Measuring Instruments Vernier ANM-BTA User Manual, Measuring Instruments Vernier Go Direct GDX-NH4 User Manual. These gloves offer the perfect combination of improved elongation with outstanding protection from chemotherapy drugs, and an FDA-approved low dermatitis potential claim. 90 mL bottle of 1000 S/cm NaCl standard solution, Conductivity Standard Solution High Concentration (CON-HST) Warranty: 5-year limited warranty (consumables excluded) 0000004011 00000 n Probe takes readings in units of conductivity (S/cm) or concentration (mg/L TDS as NaCl). Temperature Range (can be placed in): 0 to 80 C Temperature Compensation: automatic from 5-35C (800) 221-2120 :: Fax: (562) 988-0888 (Mail order only - no walk-in), Vernier Probes and Sensors (U.S.A. schools only). SensorDAQ Previously, these chemicals shipped freight within 7-14 days and incurred a $70.00 freight shipping charge. Colleges and universities are permitted to order pathogens and bacterial cultures through an institutional purchase order only. N$CYFbjra_K'F*L|`0:H+?Q:M*pxsaV0[Q~IuK+ 3*X[H/;'C.,?CG&-kPy5sx.j=4yrj;1EI],HaBB J5H:8s^4T)@oMD7X(ytgTL'nO;R19i%KJ]GwZc|N(we:'XEIg[iy"+Ls^ugY. 0000007152 00000 n process, or industrial testing of any kind. $5.09, $14.99, $100.89) is excluded from special offers, discounts, and promotions. High-quality chemicals and services, customized to your product or manufacturing needs VWR enables the advancement of science by providing high-quality chemicals and services, customized to your product or manufacturing needs. Mid Range: 0 to 2000 S/cm (0 to 1000 mg/L TDS) The Conductivity Probe can monitor conductivity at three different sensitivity settings: 0-100 mg/L TDS or 0-200 S/cm 0-1000 mg/L TDS or 0-2000 S/cm 0-10000 mg/L TDS or 0-20,000 S/cm Conductivity is directly proportional to concentration over the entire range. State or local authorities may require a permit before we can ship pathogens to you. 8% of full-scale reading for low range xb```f``Qd`e`ac@ > [8U0g(`$.Hb>S)h(uZHq@:&ew-:,0QPHQ,`UJ.H Easy access to products and protocols for research use only in the identification of 2019-nCoV based on Centers for Disease Control and Prevention (CDC) recommendations. We continue to set science in motion to create a better world by providing you with the right solutions to keep moving forward. Visit us online to download a form at, We accept product returns for any reason within 60 days of purchase. Your success will determine our future; we support you to be successful. 31 34 is a simple process that takes only a few minutes. Assortment of popular, everyday Nalgene labware in a convenient pack. The VWR Traceable Logger-Trac Temperature Datalogger is perfect for monitoring material during storage, handling, and transportation. Chemistry students can use it to investigate the difference between ionic and molecular compounds, strong and weak acids, or ionic compounds that yield different ratios of ions. New Avantor J.T.Baker premium conductive and non-conductive robotic tips deliver superior quality and reliable performance for results you can trust. High Range: 0 to 20,000 S/cm (0 to 10,000 mg/L TDS) Teachers' personal orders are always welcome. Biology teachers can use this probe to demonstrate diffusion of ions through membranes or to monitor changes in ion levels in aquatic systems. To compare product details, select up to 3 alternatives below and click Compare Selected. Offering innovative, high quality products for Genomics, Proteomics, Cell Biology, and Microbiology We are here to help you improve efficiencies and outcomes in your laboratory. 0000007559 00000 n Life Science Research Solutions, Products, and Resources, Thermo Scientific Chromatography Columns and Consumables, Liquid Chromatography - Sample Preparation, Biopharma production chemicals & excipients, Laboratory Personal Protection Equipment (PPE) and Workwear Products, Laboratory Facilities Maintenance, Protection, and Hygiene Supplies, Building a Safe Work Environment with VWR, Micronova - Contamination Control Made Simpler, Cleanroom Pharmaceutical, Biotechnology & Medical Device Supplies, Hospital & Healthcare Cleanroom Supplies & Products, Aerospace & Automotive Industry Cleanroom Products, Quality Products from Sheldon Manufacturing, Agilent Chemistries and Supplies Portfolio, PerkinElmer - Innovating for a Healthier World, Sartorius laboratory instruments, consumables and services (TBC), HALO Chromatography Columns and Consumables, VWR Returnable Container Advantage Program (ReCAP), Specialized Solutions for Cutting Applications, Quick and easy calibration using our software, Alternating current at its electrodes prevents polarization and electrolysis, Epoxy-body graphite electrode eliminates worry about corrosion of metal electrodes. Probe takes readings in units of conductivity (S/cm) or concentration (mg/L TDS as NaCl). 0000022683 00000 n The Conductivity Probe determines the ionic content of an aqueous solution by measuring its conductivity. Start the appropriate data-collection software (Logger Pro, Logger Lite. We offer several ways to place your order with us. 7030 Woodbine AveSuite 500Markham, OntarioL3R 6G2, Copyright 2021 Vernier Canada | Designed by Web Sharx. | Produced by, Download a Free Vernier Conductivity Probe Manual Here, TI-SmartView CE Emulator Software for TI-84 Plus Graphing Family. Dependable -80C storage with a focus on sustainability without sacrificing sample protection. High Range: 0 to 20,000 S/cm (0 to 10,000 mg/L TDS), Typical Resolution:Low Range: 0.1 S/cm (0.05 mg/L TDS) Features: Exceptional skid resistance, both wet and dry, for dirty jobs and controlled environments. endstream endobj 43 0 obj <> endobj 44 0 obj <> endobj 45 0 obj <>stream Your email address will not be published. It has built-in temperature compensation, which allows you to do your calibrations in the lab, and then make measurements outdoors without temperature changes affecting conductivity readings. 4% of full-scale reading for high range, Accuracy using custom calibration: 2% of full-scale reading for each range If your order contains an item classified as hazardous by the D.O.T., a minimum $27.50 fee will be charged for each order. 0 Find what your controlled environment requires here. For your security, we have logged you out. Mid Range: 1 S/cm (0.5 mg/L TDS) 0000004298 00000 n It has built-in temperature compensation, which allows you to do your calibrations in the lab, and then make measurements outdoors without temperature changes affecting conductivity readings. VWR is your complete source for workplace supplies. 0000001384 00000 n You can perform all of the conductivity experiments in our Biology, Chemistry, Physical Science, Middle School Science, and Water Quality lab manuals with this sensor. A strong, vibrant research and development group is the lifeblood of all industries. User manual VERNIER CONDUCTIVITY PROBE For more information, call 1.888.793.2300 or email us at services@avantorsciences.com. Fast response time: Reaches 98% of full value in less than 5 seconds. All Rights Reserved. You can take readings in units of conductivity (S/cm) or concentration (mg/L TDS as NaCl). Mid Range: 1 S/cm (0.5 mg/L TDS) The Vernier Conductivity Probe determines the ionic content of an aqueous solution by measuring its conductivity. Freeze cells in tubes from 1 to 5mL using the Thermo Scientific Mr. Frosty Freezing Container at nearly -1C/minute. FAQ: https://www.vernier.com/til/1402/. Corrosion of metal electrodes is not a problem with this epoxy-body graphite electrode. Be the first to review Conductivity Probe sensor Vernier. 0000001774 00000 n VWR supports you in your autosampler vial selection process through on-site consultations with our Chromatography Specialists, and providing samples when needed. {"modules":["unloadOptimization","bandwidthDetection"],"unloadOptimization":{"browsers":{"Firefox":true,"Chrome":true}},"bandwidthDetection":{"url":"https://ir.ebaystatic.com/cr/v/c1/thirtysevens.jpg","maxViews":4,"imgSize":37,"expiry":300000,"timeout":250}}. Select chemicals are now available with Poison Packs to enable faster shipping. 2. VWR provides the cell culture community with access to the most reliable supply of exceptional quality Fetal Bovine Serum: VWR Life Science Seradigm. xref You can also do a quick two-point calibration: the probe is left out of solution for one calibration point (0 S/cm) and is placed in a known standard (1000 S/cm solution is provided) for a second calibration point. Built-in temperature compensation allows calibration of the probe in the lab before taking measurements outdoors without temperature changes affecting data. Now, added Poison Packs enable your chemicals to ship via UPS to arrive within 3-4 days, eliminating the $70 freight charge. Epoxy-body graphite electrode eliminates worry about corrosion of metal electrodes. Streamline your workflow storage with VWR Ultra- Low Temperature Upright Freezer. Conductivity Standard Solution Low Concentration (CON-LST) measure either solution conductivity or 2022 VWR International, LLC. View cart for details. 0000011087 00000 n Quick and easy calibration using Vernier's software. Sensor Requirements Biology teachers can use this probe to demonstrate diffusion of ions through membranes. You can also do a quick two-point calibration: the probe is left out of solution for one calibration point (0 S/cm) and is placed in a known standard (1000 S/cm solution is provided) for a second calibration point. Range: Thousands of our best-selling products always stocked and ready when you need them, so you don't have to wait for the items you use most. This has many applications in chemistry, biology, and environmental science. trailer Items are shipped within 48 hours of ordering when order is received electronically or by phone prior to 1:00 pm EST. 0000009914 00000 n The software will identify the sensor and load a default data-collection setup. 3 0 obj Low Range: 0-200S/cm (0-100mg/L TDS) Copyright 2021 Ward's Science. The Conductivity Probe is compatible with these interfaces: No matter what methods or technology you use, Avantor offers a comprehensive catalog of the equipment, reagents, chemicals, consumables, tools, and other products you need every day. Interface and software sold separately. We use operational excellence to deliver solutions that enable research, testing, production, and commercialization across the globe. Your session has expired. For more information email, Sales tax (state and local) is based on shipping destination and will be included on your invoice. Biology teachers can use this probe to demonstrate diffusion of ions through membranes. Temperature Compensation: automatic from 5 to 35 C Corrosion of metal electrodes is not a problem with this epoxy-body graphite electrode. LabPro Availability subject to change in the event of natural disaster or forces of nature affecting sourcing, shipping, transportation, or availability of living material required for producing saleable goods. 0000001303 00000 n Our products are not, designed nor are they recommended for any industrial, medical, or commercial, process such as life support, patient diagnosis, control of a manufacturing. You can load saved calibrations using any of the Vernier data-collection programs. Mid Range: 1S/cm (0.5mg/L TDS) You, If you are collecting data using a Chromebook, mobile device such as iPad, Android tablet, or a Vernier wireless sensor or interface, please see the following. Save my name, email, and website in this browser for the next time I comment. The conductivity probe can also monitor concentration or conductivity at three different sensitivity settings. Your email address will not be published. Used under license. <> Exemption must be for the state of your shipping address. Chemistry students can use it to investigate the difference between ionic and molecular compounds, strong and weak acids, or ionic compounds that yield different ratios of ions. The Conductivity Probe requires a compatible interface and software to collect data. endobj Explore your options. Temperature Compensation: automatic from 5 to 35 C 0000001565 00000 n 0000009666 00000 n The Conductivity Probe uses alternating current at its electrodes; this prevents polarization and electrolysis, so that solutions being tested are not fouled. 0000022889 00000 n multiply the savings per unit (in parenthesis) times the %%EOF Specifications As your trusted, collaborative partner, Avantor Services helps you increase efficiency, maximize productivity, and accelerate innovation. 1 0 obj %PDF-1.5 Copyright 1995-2022 eBay Inc. All Rights Reserved. For your security, we have logged you out. The Conductivity Probe has three ranges, providing optimal precision in any given range. 0000004520 00000 n Orders required to ship by motor freight may incur an additional shipping charge. 0000008989 00000 n Accuracy: +/-1% of full-scale reading for each range Alternating current is used at its electrodes to prevent polarization and electrolysis, so that solutions being tested are not fouled. Low Range: 0.1S/cm (0.05mg/L TDS) Accuracy using factory calibration: Corrosion of metal electrodes is not a problem with this epoxy-body graphite electrode. 90mL bottle of 1000S/cm NaCl standard solution, Educational use only: Vernier and Kidwind products are designed for educational use. Catalog pricing and product availability is subject to change. 0000018674 00000 n 0000000976 00000 n Please check our website for the most recent updates to product images, descriptions, availability, and pricing. This probe has applications in both biology and chemistry classrooms. Update to Avantors response to the coronavirus (COVID-19) pandemic. Find creative lab ideas using Vernier sensors. They are not appropriate for industrial, medical or commercial applications. :: SHIPPING & TERMS :: WARRANTY :: PRIVACY POLICY :: 2019 School Savers :: 3809 Pine Avenue :: Long Beach, CA 90807 Additional Features High Range 10 S/cm (5 mg/L TDS) Cell Constant: 1.0cm-1 total ion concentration of aqueous samples, total ion concentration of aqueous samples, being investigated in the field or in the, laboratory. Dimensions: 12 mm OD and 150 mm length 0000003081 00000 n Connect the sensor following the steps in the Getting Started section of this, 4. Avantor is a vertically integrated, global supplier of discovery-to-delivery solutions for We found alternative products that can save you up to per item-unit. hTP=O0+`|-O1>=ww'-'OpM{WM$;4y$f-7vk?8#%Ppbd%tOvpDc MROQ8y{taWl^bQ+!~ j 0000022453 00000 n 0000002329 00000 n If a typographical error in pricing should occur, we are not obligated to honor the misprinted price. 0000004597 00000 n When you are finished making measurements, rinse the electrode with distilled, For many experiments, calibrating the Conductivity Probe is not required. You can select and customize services for peak efficiency, quality, and accelerated innovation. Shipping charges may vary based on the nature of the product, total weight, destination, delivery date, and delivery method. endstream endobj 32 0 obj <> endobj 33 0 obj <> endobj 34 0 obj <>/ColorSpace<>/Font<>/ProcSet[/PDF/Text/ImageC]/ExtGState<>>> endobj 35 0 obj <> endobj 36 0 obj <> endobj 37 0 obj <> endobj 38 0 obj <> endobj 39 0 obj [/ICCBased 58 0 R] endobj 40 0 obj <> endobj 41 0 obj <> endobj 42 0 obj <>stream Our solutions, developed with you as our focus, are crafted by our team and network of professionals with advanced degrees in science, quality control, engineering, manufacturing and industry experience. Note: Vernier products are designed for educational use. The Conductivity Probe has three ranges, providing optimal precision in any given range. Alternating current is used at its electrodes to prevent polarization and electrolysis, so that solutions being tested are not fouled. I00:iy VN ?Y;qwe3U+a|\`H3-109_ B Our portfolio is used in virtually every stage of the most important research, development and production activities in the industries we serve. Chemistry students are able to quickly investigate the difference between ionic and molecular compounds, strong and weak acids, or ionic compounds that yield different ratios of ions. Accuracy using custom calibration: 2% of full-scale reading for each range Unless otherwise specified, any item with a price ending in '9' (i.e. All rights reserved. Required fields are marked *. Chemistry students are able to quickly investigate the difference between ionic and molecular compounds, strong and weak acids, or ionic compounds that yield different ratios of ions. 0000025113 00000 n total units of the original product. ABS-body graphite electrode eliminates worry about corrosion of metal electrodes. A, calibration equation is stored on each probe before they are shipped, which is used, For the most accurate measurements with this sensor, we recommend calibration. %PDF-1.4 % Low Range: 0 to 200 S/cm (0 to 100 mg/L TDS) So much has changed during this unprecedented time, except your ability to count on Avantor. 1Gt|y CIUuVm%Asw Something went wrong. 2 0 obj Temperature Range (can be placed in): 0 to 80 C Weve built our reputation on consistent, comprehensive mastery of day-to-day operations, allowing lab, clinical, and production environments to focus their high-value resources on core scientific priorities. Cell Constant: 1.0 cm-1 The products you use, the products you need, the suppliers you trust for chromatography. 3% of full-scale reading for mid range Cell Constant: 1.0 cm-1 CBL 2 Biology teachers can use this probe to demonstrate diffusion of ions through membranes or to monitor changes in ion levels in aquatic systems. startxref Built-in temperature compensation allows you to calibrate the probe in the lab, and then make measurements outdoors without temperature changes affecting data. LabQuest 0000015981 00000 n VWR's cell culture portfolio provides all the essential instruments, tailored to the needs of your cell biology processes. Environmental science students use it to measureTDS, total dissolved solids. The conductivity probe can also monitor concentration or conductivity at three different sensitivity settings. :: Current stock and availability for all products available online on every product page. VWR/Anachemia continues to be the undisputed leader when it comes to supplying laboratories conducting mineral analyses around the world VWR is proud of our years of experience providing choice and excellent service to the Industrial market from Food & Beverage, Petrochemical, Environmental Testing, Waste Water, Cosmetics, Consumer Goods, Agriculture and more See how the unique Nalgene Rapid-Flow membrane support system provides the last line of defense against contamination. Conductivity is one of the most common environmental tests of aquatic, samples. Response Time: 98% of full-scale reading in 5 seconds, 100% of full-scale in 15 seconds Avantor, a Fortune 500 company, is a leading global provider of mission-critical products and services to customers in the biopharma, healthcare, education & government, and advanced technologies & applied materials industries. The probe has a fast response time, reaching 98% of full value in less than 5 seconds. In addition to vwr.com, VWR, part of Avantor offers a state-of-the-art technology solutions portfolio. % All rights reserved. link for up-to-date connection information: 2. Biology teachers can use this probe to demonstrate diffusion of ions through membranes or to monitor changes in ion levels in aquatic systems. Accuracy using custom calibration: 2% of full-scale reading for each range, Response Time: 98% of full-scale reading in 5 seconds, 100% of full-scale in 15 seconds, Temperature Compensation: automatic from 5 to 35 C, Description: ABS body, parallel carbon (graphite) electrodes. Whats Included <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Promotional discounts may not be combined with any other offers, discounts or promotions. Specifications: endobj Contact VWR Custom Manufacturing Services at 1.800.932.5000 or VWRCustom@vwr.com. Environmental science students use it to measure TDS, total dissolved solids. Our global footprint enables us to serve more than 225,000 customer locations and gives us extensive access to research laboratories and scientists in more than 180 countries. 3% of full-scale reading for mid range Seller assumes all responsibility for this listing. Connect the sensor to the interface (LabQuest Mini, LabQuest 2, etc.). VWR will support you from the latest life science products to the guaranteed purity of organic building blocks VWR is ready to support your production facility with reliable access to raw materials and essential supplies. 64 0 obj <>stream Content 2003-2022 Scientrific Pty Ltd. All rights reserved. 0000009423 00000 n Get free experiments, innovative lab ideas, product announcements, software updates, upcoming events, and grant resources. stream Your session has expired. Latest products, exclusive offers, and more. For information visit, www.avantorsciences.com and find us on LinkedIn, Twitter and Facebook. Can be used to The probe also has a fast response time, reaching 98% of full value in less than five seconds. Range:Low Range: 0 to 200 S/cm (0 to 100 mg/L TDS) [c9CR3bx.b/~_6O4mU%}, 16o57M@`+"LHJRk~ (*iec;k'kFITI3KYB.d=U7INn>/?_qzM_8=.R`:|'bO3qm}EIvY\3%[; /*NV4{sse*3}P\z3\Tk`*l']u2Z$"jwtA^"f)i"LRgi.U2v=tCxfMilp_j{^Q=_-kvl?pr4C@CYBGT:1{V(M| High Range: 0-20,000S/cm (0-10,000mg/L TDS) High Range 10 S/cm (5 mg/L TDS), Accuracy using factory calibration:8% of full-scale reading for low range Quick and easy calibration using our software. DIRECTORY :: NEW RELEASES :: SEARCH :: SPECIALS :: HOME :: E-MAIL US :: <<553F23EFFFAE9841AFFB364F51E3A926>]>> Even though it does not tell you specific ions that are present, it quickly. 5 year bumper to bumper warranty! For instructions for Conductivity Probe calibration using Logger Pro computer, For instructions for Conductivity Probe calibration using LabQuest App, see, For instructions for Conductivity Probe calibration using Graphical Analysis, In order to calibrate a Conductivity Probe, or to confirm that a saved calibration is, accurate, you should have a supply of conductivity standard solutions that cover, the range of the conductivity values you will be measuring. In-stock promise and 48-hour shipping time excludes hazardous chemicals and exceptional order quantities which will be made available at lead time. Fast response time: Reaches 98% of full value in less than 5 seconds. <>>> If you are exempt form sales tax, please provide the proper exemption documentation when placing your order. Binders, calendars, pens, cleaning and sanitation supplies, and office equipment are just some of the essential products we offer Science education supplies, specimens, activities, and equipment for all grade levels kindergarten to college. Don't miss out, order yours today! 0000014818 00000 n Materials classified as hazardous by the D.O.T. We assure the items you receive will satisfy all product specifications and requirements. xXnH}GZCQ{[Q$BH+L3Q?xC,soK"\9r p S@iN$49? Low Range: 0.1 S/cm (0.05 mg/L TDS) 31 0 obj <> endobj Details. Dimensions: 12 mm OD and 150 mm length, Vernier Conductivity Probe Included: Our products compliment your teaching and help your students engage with key STEM concepts. To add items to your cart, enter a quantity and click Add to Cart. These goggles are comfortable and have good peripheral vision. 0000003769 00000 n HtVF+"88Axs! Conductivity Standard Solution Middle Concentration (CON-MST)