Instruments Direct Flowmeter The Instruments Direct FR series variable area flowmeter measures a gas flow rate of 0.04L/min to 0.5L/min. This is a standard, precision-machined, acrylic flow specifically designed for liquids and gases, with direct reading air or water scales. You can also get a panel-mount version along with an integral valve on the inlet (FR5000-V) or no valve at all. Features and Benefits Pipe diameter range is 1/8 in<BR/>Connection type is 1/8 NPT female<BR/>Maximum operating pressure is 7bar<BR/>Maximum operating temperature is 65°C<BR/><BR/>Durable, 1-piece, clear acrylic construction <BR/>Large scales are easy-to-read<BR/>Valve with positive stop stays in place under pressure<BR/>Rod guided float for stable measurements<BR/>Fitting, valve, and O-ring options accommodate multiple applications<BR/>Multiple connection options for easier installation<BR/>Easy disassembly and assembly for maintenance<BR/>Flow meters have standard 1in FNPT PVC fittings Applications Air sampling equipment aquaculture <BR/>Desalinisation equipment<BR/>Gas analysers<BR/>Medical systems<BR/>Photo processing equipment<BR/>Water treatment and distribution systems<BR/>Purge

Water Hardness Test Strips From Instruments Direct, a pack of individual hardness test strips designed for measuring the calcium and magnesium mineral levels in the water. The water hardness test strips are made from a thin plastic material and a tip treated with a chemical that changes colour when immersed in water. These testing strips are easy to use and provide accurate results within 10 seconds. <B>What is water hardness?</B> The water in an area can be described as soft, moderately soft, slightly hard, moderately hard, hard or very hard. The hardness category you have will depend largely on the geology of the ground below you. Areas with non-porous rock (such as granite) generally have soft water. This is because rainwater cannot penetrate the rock and the water stays soft. Likewise, areas with porous rock (such as limestone or chalk) generally have hard water. This is because the water picks up particles of magnesium and calcium which remain in the water all the way through the treatment process.<BR/><BR/>Water hardness is measured by the number or of mineral deposits in your water in ppm (Parts per Million). A soft water area would have under 60 ppm while a hard water area would see readings of 180 ppm plus. The official measurement is ppm in a litre of water. <B>How to use the test strip</B> &#149; Take a single testing strip and hold the test end under in a sample or a stream of running water<BR/>&#149; Remove the strip from the sample or running water and carefully shake off any excess liquid.<BR/>&#149; Expose the indicator tip to the air and wait for a few seconds for it to change colour<BR/>&#149; Compare the test tip with the supplied colour chart.<BR/>&#149; The full range scale 0, 50, 125, 250 and 500 ppm (soft – hard- very hard) <B>Features and Benefits</B> &#149; Accurate, rapid results<BR/>&#149; Easy and simple to use<BR/>&#149; Dip and read in seconds<BR/>&#149; Supplied in a re-sealable bag<BR/>&#149; 50 disposable single-use strips <B>Applications</B> Detecting the water hardness levels in your area is extremely useful. If you happen to work or reside in a hard water area you may need to take extra care of domestic, commercial and industrial equipment and machinery. Hard water deposits known as limescale can build up on the elements, drums and moving parts, which in time can cause damage, costly repairs and eventually failure. The addition of anti-limescale cleaners can help slow down this process. Some of the more common areas to watch are &#149; Laundrettes – washing machines and steam irons and presses<BR/>&#149; Commercial kitchens – kettles and dishwashers<BR/>&#149; Aquariums - limescale on pumps, filters and tubing

pH Indicator Strips From Instruments Direct, a selection of individual pH test strips designed for measuring how acidic or alkaline a sample or solution is. The pH test strips feature a non-bleed, padded paper test tip attached to a vinyl wand. These testing strips are easy to use and provide accurate results in a few seconds. <B>What is pH?</B> The pH scale is an internationally recognisable scale that is used to indicate the acidity or alkalinity of a liquid or sample. Chemicals, liquids and samples are often classed as being acidic, basic or neutral on a scale of 0 pH to 14 pH. Low pH values are considered acidic, higher pH values are called basic and values around the 7 mark is referred to as neutral.<BR/><BR/>&#149; 0 = very acidic (hydrochloric acid)<BR/>&#149; 7 = neutral (pure water)<BR/>&#149; 14 = strong alkali (sodium hydroxide) <B>How to use the test strip</B> &#149; Take a single-use testing strip and briefly dip the end into the sample or solution to be tested for a few seconds<BR/>&#149; Remove the test strip from the solution and carefully shake off any excess liquid.<BR/>&#149; Compare the test strip with the supplied colour chart<BR/>&#149; Do not allow the strip to dry out before colour matching<BR/>&#149; Full range pH testing 0.2pH to 14pH <B>Features and Benefits</B> &#149; Accurate, rapid results<BR/>&#149; Inexpensive, easy and simple to use<BR/>&#149; Dip and read in seconds<BR/>&#149; Clear visual indication of pH levels<BR/>&#149; Ideal for testing the pH levels in water, urine and saliva<BR/>&#149; Available in different pH ranges <B>Applications</B> pH measurement is used in nearly all industries that deal with water or chemicals. Tough laws will govern how factories, plants and warehouses deal with wastewater. Completing regular pH tests are vital for the health and safety of employees, the general public and the environment. Although pH won&#146;t necessarily indicate a particular type of pollution is present, a pH indication level can help with the management of potentially high or low reading. Some typical applications include &#149; Agriculture<BR/>&#149; Chemical industries<BR/>&#149; Manufacturing<BR/>&#149; Hospitals and laboratories <BR/>&#149; Calibration testing <BR/>&#149; Aquariums <B>Testing ranges available</B> &#149; RS part number<a href="/web/p/products/3124351"> 312-4351</a> 0 to 2.5 pH<BR/>&#149; RS part number <a href="/web/p/products/3124367">312-4367</a> 3 to 6 pH <BR/>&#149; RS part number<a href="/web/p/products/3124373"> 312-4373</a> 5 to 9 pH<BR/>&#149; RS part number <a href="/web/p/products/3124389">312-4389</a> 10 to 13 pH<BR/>&#149; RS part number <a href="/web/p/products/2618603">261-8603</a> 1 to 14 pH

Sulphite Test Strips From Instruments Direct, a pack of individual Sulphite test strips designed for measuring the levels of sulphite present in water-based solutions. The sulphite test strips are made from a plastic section with a sealed test paper in the tip. These testing strips are easy to use and provide accurate results within 15 seconds. <B>What is sulphite used for?</B> Sulphites are substances that occur naturally in some foods. It is also a chemical that can be used as an additive to prolong the shelf life of foodstuffs, maintain food colour and enhance the flavour. Sulphites can also help prevent the growth of bacteria and fungi. <B>How to use the test strip</B> &#149; Take a single testing strip and immerse the tip into the solution or sample to be tested<BR/>&#149; Swirl the strip in the solution three times<BR/>&#149; Remove the strip from the solution and carefully shake off any excess liquid.<BR/>&#149; Expose the indicator tip to the air and wait for 15 seconds<BR/>&#149; Compare the test strip with the indicator colour chart on the on the label<BR/>&#149; The concentration range of 10, 501 100, 250 and 500 ppm <B>Features and Benefits</B> &#149; Accurate, rapid results<BR/>&#149; Easy and simple to use<BR/>&#149; Dip and read results in seconds<BR/>&#149; Supplied in a compact vial<BR/>&#149; 50 single-use strips<BR/>&#149; Full range indicator scale on the tube <B>Applications</B> Testing strips are generally used to check the concentration levels of sulphites in a solution. The higher the concentration the darker brown the tip of the strip will turn. Some of the most common applications and environments for single use test strips are &#149; Food processing plants and factories<BR/>&#149; Vineyards and distilleries<BR/>&#149; Hospitals <BR/>&#149; Calibration laboratories

Nitrate Test Strips Applications for nitrate testing are commonly in fertiliser and soil analysis, and these strips are also ideal for environmental testing of effluent in rivers, soils etc. Range; 0, 10, 25, 100, 250 and 500ppm

Peroxide Test Strips From Instruments Direct, a pack of individual peroxide test strips designed for measuring the levels of peroxide present in water or a solution. The peroxide strips are made from a plastic section with a sealed test paper in the tip. These testing strips are easy to use and provide accurate results within 10 seconds. <B>What is Peroxide used for?</B> Due to its excellent disinfectant and sanitizing properties, peroxide is used in a wide range of industries as an efficient cleaner. It is used to disinfect machinery and clean hard surfaces, peroxide also an effective stain remover. <B>How to use the Test Strip</B> • Take a single testing strip and briefly dip the end into the solution or sample of water to be tested.<BR/>• Remove strip from solution and carefully shake off any excess liquid<BR/>• Expose the indicator tip to the air and wait for ten seconds<BR/>• Compare the test strip with the supplied colour chart<BR/>• Full range from 0, 1, 3, 10, 50 and 100 ppm. The colour chart goes from white to blue dependant on levels detected. <B>Features and Benefits</B> • Accurate, rapid results <BR/>• Easy and simple to use<BR/>• Dip and read in seconds<BR/>• Supplied in a compact airtight container<BR/>• 50 single-use strips <B>Applications</B> Test strips are generally used to test for any remaining residues after the cleaning process. If the test strips remain white production can continue. If the strips display any indication of blue more cleaning is required. Some of the most common applications and environments for single use test strips are • Food and Beverage<BR/>• Hospitals and laboratories<BR/>• The printed circuit board and Semi-conductor manufacturing - etching<BR/>• Paper manufacturing - whitens the paper pulp

Nitrite Test Strips Common applications can be found as diverse as testing in Aquariums to soil analysis. Fast and simple analysis - after 2-3 seconds the colour is compared to chart for reading<BR/>Range; 0, 1, 5, 10, 25 and 50ppm

Refractometers Sugar Brix Refractometer 0 - 32%; Designed for use in applications such as quality control, determining sugar contents of fruit, fruit juices, wine, milk, soft drinks and brewing. Can also be used for industrial cutting, lubricating, soluble tempering oils and emulsification solutions. Range 0 - 32% brix<BR/>Resolution 0.2%<BR/>Accuracy ±0.2% Sugar Brix Refractometer 0 - 80% Designed to measure jams, marmalade and syrups. Also useful for testing unknown sugar levels<BR/>Range 0 - 80% brix<BR/>Resolution 1%<BR/>Accuracy ±1% Salt Refractometer Designed to measure salt content in sea water, aquarium, breeding ponds etc. The scale is calibrated for sodium chloride but it can be used for magnesium, caesium, potassium, cupric sulphate, potassium iodide, citric acid and acetic acid<BR/>Range 0 - 28%<BR/>Resolution 0.2%<BR/>Accuracy ±0.2%