Assemblies & Kits

Acid Test Kit

Acidometer

Aeration Oxidation Assembly for Free Sulphur Dioxide

with Water Aspirator

The vacuum aspiration (aeration-oxidation) method is independent of other components. It provides a more correct value for the acid-released free SO2.   An aspirator pump that attaches to a lab faucet is included as a vacuum source, but a vacuum pump may also be used.  The assembly includes all needed reagents for testing.    

Aeration Oxidation Assembly for Free Sulphur Dioxide

with Diaphragm Air Pump

The vacuum aspiration (aeration-oxidation) method is independent of other components. It provides a more correct value for the acid-released free SO2.  This assembly uses a diaphragm air pump which sends a small volume of air through the assembly.  You will no longer need a water source or expensive pump to perform the analysis for free SO2.

How Sweet It Is Kit

Makes testing for dryness in wine easy for any winemaker.  Replacement tabs are

available.

Iodine Method for SO2 Assembly

This iodine (Ripper) method is widely used for SO2 determination, but it is not

suitable for free SO2 on red wine, wines with botrytis, or whites after ML

fermentation.  The iodine method measures the acid-released free SO2 by reaction with iodine.  This assembly includes everything needed to perform tests except for a

titration apparatus.

MaloLactic Chromatography Assembly

This self contained paper chromatography kit has all the items necessary to do 10 chromatograms, each with up to 10 wines, plus some reference acid solutions.

Quick Test Kits

    Free SO2          Malic Acid                 pH              Residual Sugar     Titratable Acidity

Total Titration Assembly (Apparatus)

This assembly contains the necessary equipment for fast, accurate titrations with a 25ml Teflon rotary stopcock glass buret. 

Total Titratable Acidity Assembly (Reagents)

Reagents for use with Total Titration Assembly.  Allows the use of a pH

meter to determine the titration endpoint.

Chemicals

Clinitest Sugar Tablets

Copper Sulphate

Dilute Acid for Acidity

Dilute Base for Acidity

Hydrochloric Acid

Hydrogen Peroxide

Iodine 0.0156N Solution

ML Chromatography

 
pH Buffer Solution

Shelf Life:  Unopened bottle in cool place = 1 year. Opened bottle should be kept capped 3 - 6 months.

pH Electrode Cleaner

pH Electrode Fill Solution

pH Electrode Storage Solution

Phenolphthalein

Phosphoric Acid

SO2 Indicator Solution

Sodium Hydroxide

Sodium Thiosulfate

Starch 1% Solution

Starch, Soluble Powder

Sulphuric Acid

Supplies

Balances

Ohaus Triple Beam Balance, A+ Brand
Capacity is 2610g. x 0.1g. Stainless Steel pan.

Ohaus Digital, Scout Pro Series of Top Loading Balances

Ohaus takes the classic Scout® balance to the next level with the all-new Scout Pro! Designed for use in laboratory, industrial or education applications, and featuring easy-to-use two-button operation, a high-contrast LCD display, multiple weighing units, four application modes, and the option of either RS232 or USB connectivity, the Scout Pro is the portable balance for you!

Simple to operate, Scout digital scales allows weighing with minimal instruction, and the large, crisp display lets you view results from any angle. A sealed front panel, molded spill ring and stainless steel platform frotect from spills and make the Scout Pro digital scales easy to keep clean.

• Multiple Weighing Units – Including grams, kilograms, pounds, ounces, a combined pound:ounce display, troy ounces and pennyweights - change weighing units at the touch of a button
• Multiple Application Modes – Including enhanced parts counting, percentage weighing, totalization, and display hold
  • Enhanced parts counting with average piece weight recalculation
  • Totalization for summing sample weights - only Ohaus Scout Pro digital scales allows repeated summation to the limit of the display, not just the capacity of the balance
  • Percent weighing for comparing sample weights to a reference weight
  • Display hold for weighing large packages - only Ohaus Scout pro offers this feature in a portable balance
  • Below-balance weighing using integral weigh below hook for density determination
• Easy to Use – The high-contrast LCD display combined with two key operation makes the Scout Pro a snap to operate
• USB or RS232 Connectivity – Quickly-installed option with integral cable allows data connection to PC or printer - Only Ohaus Scout Pro offers USB capability in an economical portable balance
• Easy to Clean – Removable stainless steel weighing platform, sealed front panel and molded spill ring help keep the Scout Pro safe from spills
• Battery or AC Power – Uses 4 ´AA´ batteries with auto shut-off feature for 40 hours of operation, or the Scout Pro can be run on the included AC powerpack
• Integral Weigh-Below Hook – Critical for density or specific gravity determination
• Integral Security bracket
• Integral shipping lock to protect the weighing mechanism during transportation
• Sealed front panel and molded spill ring to protect the balance during use
• Physical lockswitch to allow the balance to be locked into a specific configuration, reducing operator error
• 2 year Ohaus warranty

Please call us if you do not see your capacity or readability offered.

Beakers

Bottle, Wash Bottle

Brushes

Burets

Glass Rotoflow    

Capillary Tubes

Clamps

Buret clamp, Double     Clamp, V-Jaw

Cylinders

      Polypro               Glass            

Dispenser

Plastic dispenser, measuring, variable volume.  Top chamber has ml & ounces.

Drain Stands

Drain Stand, 90 places

Flasks

Erlenmeyer Flask     Volumetric Flask

French Squares

Funnel, Thistle

ML Chromatography Paper #20

Parafilm

Pipets & Accessories

          Pipets              Pipet pumps          Pipet rack

Stirrers & Accessories

Hot Plate/Stirrer       Magnetic Stirrer         Stir Bar           Stir Bar Retriever

Support Stands

   Support Stand

Test Jars

 
Test Jars

Use to take hydrometer measurements.

Test Tubes & Accessories

Watch Glass

Weigh Boats

Wipes & Dispenser

General Purpose, lint-free wipe for the lab.

Kimwipes Pop Up Box

Kimwipes pop up to the very last tissue. 

Ensures the top tissue never falls back into the box. 

• No more digging for a tissue and coming up with a bunch, minimizing waste.
• Accessible and portable.  No fixed wall installation required.  Put a Push-Up Box     wherever ergonomically desirable.        
• Protects tissues from spills and moisture in the work area.      
• Single-piece construction.  Injection molded high-impact polystyrene.  No glued      joints, no assembly required.

Testers

Ebulliometer

Developed around 1870, continuously improved and recognized throughout the world, the Dujardin - Salleron Ebulliometer is the simplest instrument for directly and accurately testing the alcoholic content of dry wines with normal composition.

Hydrometers      

Mini Titrators - Hanna

Hanna HI 84100 Free & Total Sulfur Dioxide Mini-Titrator for Wine Analysis

The HANNA HI 84100 offers the possibility to test free or total SO2 in all the wines including the red ones that are difficult to test with manual methods because the color changes are hardly seen.

· Performs simple titrations in minutes.
· Easy to operate.
· Pre-programmed with analysis method.

All-In-One Unit:
Built in magnetic stirrer with electrode, beaker and reagent holder in one compact unit.

Free and Total Sulfur Dioxide:

An important reason for adding SO2 is to avoid oxidation. When there is oxygen around, SO2 itself becomes oxidized before phenol compounds in the wine, and so acts as an oxygen scavenger. Also, SO2 suppresses the activity of enzymes that cause browning and other problems.

Molecular SO2 is what really is protecting your wine. When you add SO2, depending of circumstances, some of it immediately becomes bound. The relationship between the amount of SO2 and amount of SO2 remaining free is complex. It is clear, however, that is largely governed by the total SO2 content of the wine. The rate of binding decreases as the free SO2 concentration increases. The exact relationship between free and bound (total-free) SO2 will vary from wine to wine.

Below 30-60 ppm, 33% to 50% of SO2 addition becomes bounded. What remains is called “free” and it is divided in two parts. The larger, and relatively ineffective free part is “bisulphite” (HSO ). The smaller part of the free is the active molecular. The amount of molecular SO2 in your wine depends both on the level of free SO2 present as well as pH. For instance, at pH 3.2, the amount of the free SO2 for 0.8 ppm molecular SO2 is 22 ppm. At pH 3.5, you will need 43 ppm free - essentially double. In most situations, 0.8 ppm, molecular SO2 during bulk storage and at bottling will provide you with adequate protection from oxidation and bacterial action. This includes prevention of malolactic bacteria as well.

It is important to remember that the amount of free SO2 in the wine depends on three things: how much is added, how much was present before the addition and how much of your addition promptly becomes bound.

The level at which molecular SO2 can be detected by the human senses is about 2.0 ppm. This is also the level which is needed for maximum protection of your wine. This is particularly true in the case of sweet, and most notably, botrytised wines.

Hanna HI 84102 Total Acidity Mini-Titrator for Wine Analysis

Titratable Total Acidity:
Acids occur naturally during the growing of grapes as as part of the fermentation process wines show lower levels of acid when there are hot growing seasons or when the grapes come from hotter regions. In the proper proportion, acids are a desirable trait and give the wine character.

The three predominant acids in wine are tartaric, malic, and citric, all of which are intrinsic to the grape. Tartaric acid is the principal acid in grapes and is a component that promotes a crisp flavor and graceful again in wine. A moderate amount of a wine’s acid comes from malic acid, which contributes to fruitiness, and a small amount comes from citric acid. Wine also contains trace amounts of other acids. The least desirable acid in wine is acetic acid, which, when preset in more than a nominal amount, give swine a sour vinegary aspect.

Total acidity, also called titratable acidity, is the sum of the fixed and volatile acids. In the United States the total acidity is usually expressed in terms of tartaric acid, even though the other acids are measured.

Total acidity directly effects the color and flavor of wine and depending on the style of the wine, is sought in a perfect balance with the sweet and bitter sensations of other components. Too much acidity makes wine tart and sharp; too little makes wines flat, flabby and uninteresting. Proper acidity in wine is what makes it refreshing and an ideal
accompaniment to food.

The proper acid level of a wine varies. Sweeter wines generally require somewhat higher levels to retain the proper balance. For dry table wine the acceptable range is usually 0.60 to 0.75%; for sweet wine it’s 0.70 to 0.85%.

pH Meters - Desktop

Hanna Desktop pH Meter    Oakton Benchtop pH Meter

pH Meters - Handheld

Hanna pHep 5 Meter

Waterproof Pocket pH Meter with 0.01 Resolution

The waterproof pHep® 5 pH tester has a dual-level LCD that displays pH and °C or °F. At startup, pHep® performs a self check then displays the remaining battery level to assure proper working condition. This tester also feature a stability indicator and hold feature to prompt the user when to take the reading & freeze the display for easy and accurate recording.

OAKTON ® Waterproof pHTestr TM  (20 and 30)

Versatile, compact design works in a field or laboratory setting. A complete meter

with key features at an economical price. Replaceable, double-junction electrode sensors saves time and money.pH Testr 20 does not have temperature display.  pHTestr 30 features ±0.01 pH accuracy along with dual display pH and selectable °C or °F temperature display.

Specifications
Range pH -1.00 to 15.00
Resolution pH 0.01
Accuracy pH ±0.01
Calibration pH Up to 3
Buffer recognition 4.01, 7.00, 10.01 USA
4.01, 6.86, 9.18 NIST
Temp compensation 32 to 122°F
(0 to 50°C)
Display Four-digit LCD
Power Four 1.5 V button cell batteries (included)
Battery life More than 100 hours
Low battery indicator three-segment
Operating temperature 32 to 122°F
(0 to 50°C)
Dimensions 6-1/2"L x 1-1/2"dia
Manufacturer number PHTEST20

Photometer

HI 83746 is an invaluable instrument for monitoring the presence of residual sugar in wine.

Refractometer

Refractometer - Used to measure soluble sugars, 0-32° brix. Automatic Temperature Compensation will adjust automatically within the 10-30 degree C range. Handheld with case.

Thermometer, Floating 8"

Floating glass thermometer, 8", 0-110 degrees C, 20-220 degrees F.

Thermometer, Handheld Digital

Pocket sized Hanna digital thermometer, waterproof, with range of

-58 to 338F and a resolution of 1F.

Titrets

Titrets - for the determination of Sulfite in wine. Range 10-100mg/L. Kit contains 10 tests.

Titrettor

Titrettor - Reusable tool for titret SO2 testing.

Vinometer