Due to supply demand for plastic, the incubator may be grey in colour instead of black. Correctly check your metal cutting / metalworking fluids for bacteria and pH levels to comply with HSE guidelines. This metal cutting test kit includes an easy to follow instruction manual and log book allowing you to keep a record for your next inspection. This metal cutting test kit is for testing the bacteria, yeasts, moulds (fungi) and pH levels of metal cutting fluids to comply with HSE MW5 ('Managing sumps and bacterial contamination') Control of Substances Hazardous to Health Regulations: (http://www.hse.gov.uk/pubns/guidance/mw5.pdf). The Metal Cutting fluid test kit includes: 1 x Full colour, 18 page dip-slides.com instruction manual with step by step instructions (including photos) and record sheets. 1 x dip-slides.com MX2 Dipslide Incubator (1 -2 dipslide capacity) 2 x boxes of Metal Cutting Fluid dipslides - MCBTM2 (bacteria, yeasts and moulds test), 20 dipslides in total. 1 x box of Johnson Universal pH indicator strips (pH 6.5 - 10.0) 1 x Refractometer 0–32% Brix. This is an optional item (as you may already have one of these). A refractometer can be used to test the concentration of industrial / metal cutting fluids. Testing the concentration is important as having a high or low concentration can contribute to adverse health effects, ineffective lubrication, machine breakages and bacterial contamination. Please choose from the dropdown if you wish to include this item. 1 x Temperature Sensor - In accordance with HSE MW5 regulation, you are now required to monitor the temperature of your MWF weekly. Please choose from the dropdown if you wish to include this item. How to use the metal cutting fluid test kit. Dip slide into fluid Fully submerse the dipslide (so all the agar is covered) into your cutting fluid sample for 10 seconds. After which, remove the slide and allow the fluid to drain off before returning it to the tube. Place dipslide into the incubator Place the dipslide into your incubator and inbucate for 24-120 hours (see instruction sheet for exact times). Review Results Remove the dip slide from the incubator and compare the results with the comparison chart provided. Testing the pH of metal cutting fluid can indicate whether levels are corrosive. Low pH levels can be caused by the presence of bacteria. This is why using dipslides and pH strips together gives a fuller indication of the 'health' and quality of your cutting fluid. Ideally, you do not want your cutting fluid to have a lower pH than approx 8.5 as any fluid that is too acidic will corrode metals. However, you don't want a pH level that is too high as it can pose a risk to health (skin irritation etc). When you carefully dip the indicator strip into fluid, the strip will change colour in accordance with its pH level. These indicator strips are colour fixed and non-bleeding so results should be clear and accurate. Each box of pH indicator strips contain 100 strips. A colour indicator chart is also included. The Metal Cutting Fluid dipslides (MCBTM2) dipslides test the cutting fluid for bacteria and yeasts / moulds. Regular microbiological testing of metal cutting fluids is very important. High levels of bacterial contamination will degrade the quality of the fluid and will become a health risk. Contamination can also cause the pH level to lower to acidic levels. There are 2 boxes of dipslides in this kit (20 dipslides) . To test your metal cutting fluid using these dipslides, carefully dip the slide within the fluid and immerse fully then replace the slide within its tube. You will then need to incubate the slides and once incubated, compare results with the comparison chart provided to evaluate if contamination is present. The GNAT incubator will incubate 1 - 2 dipslides. It is ready to use after an initial 15-20 minute stabilisation period. The incubator is pre-set at 30 degrees Celcius. This kit will provide everything you need to effectively test the microbiology and pH of your metal cutting fluids. Reading the results Nutrient Side Level of infection in liquids (CFU/ml) 102 103 104 105 106 107 Approx colonies per agar 2 12 60 200 500 600+ HSE.gov.uk advice Good control. Bacteria are being maintained at low levels. Regular checks and actions to maintain the fluid quality should continue. Reasonable control. Review and take action to check the quality of the metalworking fluid and adjust fluid parameters to those recommended by the supplier. If bacterial growth continues despite these adjustments, add biocide at the dose recommended by your supplier. Poor control. Immediate action should be taken in line with the risk assessment. Normally draining and cleaning should take place Example Image Level of infection on surfaces (CFU/cm2) 0.4 2.5 12 40 100 250 Malt Extract Side Level of
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