The heating speed is very fast by silicon-molybdenum elements. Small and light in weight furnaces designed for easy maintenance and replacement of parts in case of shutdown. Tel. Gallery ViewSGS can use various sample sizes (15, 30 and 50 g), depending on anticipated gold contents and degree of homogeneity expected. We enable science by offering product choice, services, process excellence and our people make it happen. Learn more about Furnaces (Ashing and Muffle Ovens). Discover 13 products from Cupellation Furnace manufacturers, suppliers, distributors, and dealers across India. Cupels should be 168 x 6A, 7A, or 7AS. We enable science by offering product choice, services, process excellence and our people make it happen. The furnace is mounted on a console fabricated from 2mm zinc anneal sheet and finished in Hammerfin blue enamel. 2 cupels 0. MFD-168 OIL Cupellation Furnace Page 1 of 3 17 Montgomery Way, Malaga, Western Australia 6090 T: +61 08 9249 4400 F: +61 08 9249 4308 Email: furnace. No rights can be delivered from the illustrations. 7 Muffle 300 mm high x 600 mm wide x 580 mm deep. 50 CF 60 1200 1200 250 x 400 x 600 2230 x 1120 x 1435 (Floor-standing) 60 90 31000 R 380 – 415 200 – 240 440 3 phase + N 3 phase delta 3 phase + N 59 103 59. Energy efficiency is a big reason to consider installing a Valor fireplace in your home. 1200°C maximum operating temperature; Designed for testing using the cupellation method to ISO11426:1999 the. CODISSIA Trade Fair Complex. Accessories for 168 Place Cupellation Furnace, Furnace and Assay Supplies. Configurations of 50 place and 100 place furnaces can be supplied and configured for LPG, natural gas, diesel or electric fuel sources. . com. High Quality with Fair Price Crucible for Fire Assay, Cupellation, Laboratory, Find Details about High Temperature Resistance Crucible, High Quality Refractory Crucible from High Quality with Fair Price Crucible for Fire Assay, Cupellation, Laboratory - Changsha Jintuo Experimental Equipment Co. We enable science by offering product choice, services, process excellence and our people make it happen. Total. com and discover great prices and after-sales services. comThe fusion is made in clay (or rarely iron) crucibles in a wind furnace, similar to, but usually smaller than, that used for melting bullion. 99. China Silicon Carbide Furnace manufacturers - Select 2023 high quality Silicon Carbide Furnace products in best price from certified Chinese Wear Plate, Castable Alumina Ceramic suppliers, wholesalers and factory on Made-in-China. We enable science by offering product choice, services, process excellence and our people make it happen. The button of lead obtained by. To contact Furnace and Assay Supplies about Cupellation Furnace | 168 Place use Get a quote. We enable science by offering product choice, services, process excellence and our people make it happen. Related. Furnaces are fully assembled, ready to start, table Top model with very low maintenance. Electric 100 Place Cupellation Furnace. comMFC LPG Cupellation Furnace Thermocouple Sheath (Inner) 250 x 10mm 4 RC102CFE Thermocouple Sheath (Outer) 250 x 15mm 4 RC103CFE U. ₹ 50,000/ Piece Get Latest Price. We enable science by offering product choice, services, process excellence and our people make it happen. 168-Place Cupellation Furnace, Furnace and Assay Supplies. 2016/12/05. Our engineers work closely with our customers to select the right furnace for their needs. The standard range is low power consuming units and can melt gold up to 1kg using 220 volts single phase power supply. Height: 850, 990, 1,025 mm. Direct vent sealed combustion gas fireplaces eliminate any unwanted drafts and/or heat loss. price. Refining Precious Metals by Cupellation Ring of Ramesses IV, ca. $23,418. 6 cupels: 24, 32 or 72. Cupellation as a refining method was invented in the Early Bronze Age, probably in Mesopotamia and Anatolia, from where it spread to other parts of Eurasia. , Ltd. Our Gold cupellation furnace is precision engineered and excellent in performance. 0575324839 Email: info@fioainternational. The sample is then heated in a. Optional port viewing window, rear extraction unit and hand valve door control extras are also available. Minerals decomposed in this way include sulphides, arsenides, antimonides and tellurides. Shopping. Key Features. 4 2 FTUBES04 Parts Packaging & ISPM15. The Electric 25 Place Fusion Furnace is suitable for small labs processing between 100 to 400 samples per day, including standards. 100 or 168 Place Cupellation Furnace. Accessories for 168 Place Cupellation Furnace, Furnace and Assay Supplies. 842 gram of silver (from the metallics) must be added to its produce. Page 1 FURNACE & ASSAY Fuel Source: —— —–– S U P P L I E S 100 Place Cupellation Furnace Electrical: Operation & Maintenance Manual 220-240V Working Area 560mm Deep 480mm Wide 190mm High Combustion Chamber Volume: 0. Get Best Price. The cupellation furnaces are designed for the cupellation, or fire assay test, of precious metals, which is a standard test method used to determine their purity. High : 220mm. Key Benefits Uses a No. Order). com Key Benefits Uses a No. industries@morganplc. Twenty grams of the sifted portion, when assayed, gave 0. com. electric 5 DIMENSIONS. com Version 1 Pricing Effective 18/1/2018 Revision Date: 16/10/2018. best forest around berlin finis duo underwater mp3 player 0 Comments. 4 Muffle. Wood Stoves For Sale - Pacific Energy. Sourcing Guide for Assay Crucible Fusion Furnace: With hundreds of thousands of products to choose from and an ever growing product range, your industrial equipment needs are sureThese 168-place cupellation furnaces are available with LPG, natural gas, or diesel fuel source options. FURNACE. 1200°C, • Type “K” thermocouple • High temperature alarm output. new. IndiaMART Member Since Jan 2022. JC2013 Jaw Crusher. MFD-168 NG Cupellation Furnace Page 1 of 3 17 Montgomery Way, Malaga, Western Australia 6090 T: +61 08 9249 4400 F: +61 08 9249 4308 Email: furnace. nace is made in two smaller sizes, one of which costs $20. com tel: +61 8 9399 9299. The molten lead contacts with the oxygen in the air to become lead oxide. Cupellation Furnaces. Made from Fused Silica and Fireclay, our crucibles are the best choice for use in the fusion of gold/silver bearing ores due to their high erosion resistance allowing them to be used. Our Cupellation furnace range is available in a range of sizes, suitable for a range of cupels. Available with natural gas, liquefied petroleum gas, or oil (diesel) fuel source options -Suitable for small labs 100-400 samples per day including standards -Base construction uses high-quality 50 x 50 RHS -Furnace body construction is durable 2mm laser-cut plate -High quality refractory brick and insulation -Bolt holes in base plates of all. 84 x 55 gram. US$ 10,000-16,000 / Piece Min. 1200 Degree 50 PF Electric Cupellation Furnace for Gold Mines Fire Assay Laboratory, Find Details and Price about Furnace Cupellation Furnace from 1200 Degree 50 PF Electric Cupellation Furnace for Gold Mines Fire Assay Laboratory - Qingdao Yosion Intelligent Technology Co. Messages. , Ltd. 4 Muffle. PAIR WITH. 168-Place Cupellation Furnace, Furnace and Assay Supplies. Description: These 168-place cupellation furnaces. industries@morganplc. Model MF-C View. Description. Floor Furnace Distributor - Select 2023 high quality Floor Furnace Distributor products in best price from certified Chinese Heating Furnace manufacturers, Temperature Furnace suppliers, wholesalers and factory on Made-in-China. com tel: +61 8 9399 9299. Additional Information:Get a Fusion Furnace | Electric 25 Place price and specifications from Furnace and Assay Supplies. say. Due of its high chamber design, model N 30/13 CUP can also be used for crucible melting. Supplier: KLEN INTERNATIONAL (74) PTY LTD. To contact Furnace and Assay Supplies about Cupellation Furnace | 168 Place use Get a quote. 2 4 RF204FF3 Vent Tube No. 500°C to 1200°C ŸSilicon Carbide Muffle for Energy Efficient and better uniformity. GST 33AVJPM1325J1ZP. , Ltd. 5 & 6 Muffle) 10 LFT56022 Heating Element, Silicon Carbide 20 x 500 x 1000 12 RC112201. Also find Cupellation Furnace price list from verified suppliers with contact number | ID: 2183466591. Chamber volumes: 10 to 43 litres. Find Electric forced air furnaces at Lowe's today. If it is less, 99. 4 muffle. Find a trusted Furnace supplier in Perth & Brisbane and compare products for sale in Australia. , Ltd. Configurations of 50 place and 100 place furnaces can be supplied and configured for LPG, natural gas, diesel or electric fuel sources. Description: These 168-place cupellation furnaces are available with LPG, natural gas, or diesel fuel source options. China Silicon Carbide Furnace manufacturers - Select 2023 high quality Silicon Carbide Furnace products in best price from certified Chinese Wear Plate, Castable Alumina Ceramic suppliers, wholesalers and factory on Made-in-China. JC17 Jaw Crusher Fact Sheet. 7 Muffle 300 mm high x 600 mm wide x 580 mm deep. Get Electric Fix Gold Cupellation Furnace Hallmarking at best price in Bengaluru, Karnataka by Cera-therm International and more manufacturers | ID: 24262459930. Cupellation Furnace with Silicon Carbide Heating Elements, Find Details about Furnace, Cupellation Furnace from Cupellation Furnace with Silicon Carbide Heating Elements - Qingdao Yosion Intelligent Technology Co. Electric Fire Assay Cupellation Muffle Furnaces up to 1200 ° C 50-Place, Find Details and Price about Furnace Cupellation. This 25 place fusion (assay) furnace is electrically powers by a 24000 Watt heating element allowing it to reach and hold a temperature of 1200 degrees C (2200 F). I think 10k is way too high. IndiaMART. Historically, the art, science and application of Fire Assay extends back to the use of the lead oxide. Central hole of 20mm at both ends for air circulation with chimney fitting for removing fumes. The design of the cupellation furnace range ensures protection from the corrosive environment which would damage a conventional furnace. heating the molten steel. Quick view. It is a procedure where ores or alloyed metals are treated at high temperatures with the. List Price: 18,50 € MORE INFO Availability: 9 In Stock. electric 5 DIMENSIONS. Description: The DFC Model 802 Electric Cupellation Furnace is the workhorse of the fire assay laboratory. Furnace body construction is durable 5mm laser-cut plate. Magnesite cupels that can be supplied packaged for use with either 25 plc or 50 plc. Manufactured from supreme quality raw materials, these are made in compliance with industry quality standards. 99. Cupels. Shopping Sell. If you are looking to a buy a Furnace for sale, suppliers on MedicalSearch include IVOCLAR VIVADENT, Labec, Dental Dynamics Australia, AVT Services Gas Cupellation Furnace. Cell, (Flame Detector) QRA. It is a largest B2B market place for all manufacturer and traders. (NOTE: Voltage is customised to destination country of the furnace). Internal Dimensions: 200 mm high x 260 mm wide x 460 mm deep. 2 M3 Air Supply for door operation: Minimum 3 cfm @ 350 Kpa Electrical: 220-240 volt 50. We enable science by offering product choice, services, process excellence and our people make it happen. 50 Lakh. 99 $ 23,418 . Wide : 1220mm. Sourcing Guide for Assay Lab Fusion Furnace: Find more online shopping business in less effort by choosing the right China instruments & meters suppliers on our website. Cupellation Furnace Model EMF-C Phone: +61 (0)8 9249 4400 Website: Email: furnace. MLS can supply cupellation furnaces manufactured by the world leaders in furnace technology. Sourcing Guide for Crucible Fusion Furnace: With hundreds of thousands of products to choose from and an ever growing product range, your industrial equipment needs are sure to beOnce every few months or when the furnace is shut down and cool, vacuum out the furnace and the element grooves. Qty of Cupels at Size. Door Operation. 50. Learn more about Furnaces (Ashing and Muffle Ovens). Related. Therefore, the amount of silver should be sufficient. , Ltd. They form a firm basis on which future operations will develop. 95 and 96. No. 5in Furnace Tray SC 23X19X4. 60. Also find Cupellation Furnace price list from verified companies | ID: 10552919155. 842 gram of silver. Available with natural gas, liquefied petroleum gas, or oil (diesel) fuel source options -Suitable for small labs 100-400 samples per day including. industries@morganplc. Learn more about Furnaces (Ashing and Muffle Ovens). Cupels. Get Cupellation Furnace in Marol, Mumbai, Maharashtra at best price by K V Exports. 00 / Piece | 1 Piece/Pieces (MOQ)After 15 minutes, decant the tray and put in the second acid, in a separate beaker, when the temp reached 105 degree for the second parting and boil gently. On the lifting. Electrical Requirements. These 168-place cupellation furnaces are available with LPG, natural gas or diesel fuel source options. Complete set of left and right electric connections for singlephase assay furnace FIOA 5. Decorative Electric fire place. 4 (Small Slotted) Suit Muffle No. Standard features 1200°C maximum operating temperature Designed for testing using the cupellation method to ISO11426:1999 theLearn more about Furnaces (Ashing and Muffle Ovens). We enable science by offering product choice, services, process excellence and our people make it happen. Fair labor for the entire job depends on your area in California where a one bed apartment rents for $2000/month, it would be fair to pay $1800 for labor. FAS-160-NG2-50 Place Cupellation Muffle Furnace, Natural Gas - 50-Place Cupellation Muffle Furnace, Furnace and Assay Supplies - Each Brand: KLEN INTERNATIONAL (74) PTY LTD. JC2013 Jaw Crusher. Length: 1410mm Width: 1490mm. Furnace Interior: 444 mm Wide x 560 mm Deep x 285 mm High. SF-8-SD. The price of each item is reported to 1 kg of product. Get a Fusion Furnace | 25 Place price and specifications from Furnace and Assay Supplies. Vibration damping table for gold assay, Electric muffle furnace for precious metals assays by cupellation, special motorized working bench for rolling and annealing the assay sample, assay hoods for the separation , ashes assay. Mohan. A qualitative spectrographic analysis to determine the general elemental composition costs about $15 to $30 per sample. Cupellation Furnaces for sale online. The design of the cupellation furnace range ensures protection from the corrosive environment which would damage a conventional furnace. Maximum temperature: 1,400 °C. Fact Sheet. hp p3015 toner replacement. The Cupellation Furnace with SiC Muffle is a high-performance furnace designed for use in the assaying of precious metals, particularly gold and silver. Yosion. 548370) Muffles for cupellation furnaces for fire assay; Ceramic muffle for cupellation furnace 182x235x110mm; Holder for initial assay sampling (cod. Get a Furnace Industries Fire Assay Cupellation Furnaces price and specifications from MARC Technologies Pty Ltd. GST 27ADRPK2400N1ZB. Bucking Room Equipment. The fire is lighted, a little bone-ash is sprinkled on the floor of the muffle to prevent its corrosion by litharge in case of the upsetting of a cupel, and the cupels introduced as soon as a bright red heat is attained. com. Decent aims to provide full range of fire assay cupels in premium quality and competitive costs. The cupellation furnace removes all non-precious metals from samples of precious alloys. When used within a suitable fume management system, the cupellation Modular Furnace The MAS-3 assay modular furnace (formerly known as “William & Wilson”) is well known in the mining industry across North America, as well as in other locations worldwide. 50 x 6a, 7a or 7as Cupels Heating Elements: 12 x. Discover Efficiency, Reliability & Unparalleled Performance Today!. Pneumatic rising. IndiaMART > Industrial Furnaces & Ovens > Heating Furnace > Cupellation Furnace. ILS can supply cupellation furnaces manufactured by the world leaders in furnace technology. The test method produces hazardous vapours. List Price: 18,50 € MORE INFO Availability: 9 In Stock. 713010 + 780540) Manual rolling mill with column for assay. SGS can use various sample sizes (15, 30 and 50 g), depending on anticipated gold contents and degree of homogeneity expected. Product List ; Supplier List; View: List View. Bolt holes in base plates of all 4 legs for individual adjustment on uneven surfaces. Voltage is customised to destination country of the furnace. Place of Origin: China: Brand Name: SP: Certification: ISO: Model Number. Easy to maintain and operate. 2 electric PRODUCT SUMMARY The Electric 100 Place Cupellation . Internal Dimension: Deep : 650mm. 5 Kpa Combustion Chamber Volume: 0. Also find Cupellation Furnace price list from verified suppliers with contact number | ID: 25511745533Takes 50 x 6a, 7a, 7as Cupels or 36 x Built to Industry Standards 8s Cupels at one time. Free C$50. Get Cupellation Furnace in Vca Ground, Nagpur, Maharashtra at best price by Shree Sai Shakti Enterprises. Cupels should be 168 x 6A, 7A, or 7AS. Get a Cupellation Furnace | Electric 100 Place price and specifications from Furnace and Assay Supplies. 2 electric PRODUCT SUMMARY The Electric 100 Place Cupellation . Subtotal. com Key Benefits Uses a No. (cod. Magnesite cupels that can be supplied packaged for use with either 25 plc or 50 plc cupel forks. Magnesite cupels that can be supplied packaged for use with either 25 plc or 50 plc. Furnace Tile, 560 x 470 x 22mm (Suit No. Learn more about Furnaces (Ashing and Muffle Ovens). Muffle complete with refractory heating elements for MSC FIOA test furnace. A method of recovering non-ferrous metals, especially silver from slags from cupelation furnaces consisting in the fact that the silver slag from the cupelation furnace is mixed with fluxes and reducers, including the coke breeze, the mixture prepared in this way is loaded into the arc-resistance electric furnace and the melting and reduction process is carried. 566160) Carborundum muffle for assays furnace complete with refractory plate. MORE INFO Availability: 5 In Stock. The equipment is used for the thousands gold, 18K gold sample analysis with high analysis accuracy results. Model MF-D View. Configurations of 50 place and 100 place furnaces can be supplied and configured for LPG, natural gas, diesel or electric fuel sources. 00 or of furnace, burner, 7½- gallon gasoline tank and pump, is $48. The cupels are cleaned by gentle rubbing or blowing before being charged-in, and are again cleaned. The listed price of a Furnace for sale ranges from $2,875 to $19,995, averaging $11,435. VWR offers a wide assortment of products and brands in this category. With a working area of 56 cm deep X 59 cm wide X 19. Learn more about Furnaces (Ashing and Muffle Ovens). 00 (ex GST) More. ILS can supply cupellation furnaces manufactured by the world leaders in furnace technology. A good clean separation is difficult to achieve, as gold protects silver from attack. 62-63. Lead is added as a collector. A furnace cleaning costs $70 to $100 for basic cleaning or $150 to $300 for deep cleaning. 168 x 7A or 7AS. Cupellation Furnace with Silicon Carbide Heating Elements . Do not place the furnace on anelectronic analytical scale – 4 decimals (cod. Browse industrial furnace at Alibaba. 168-Place Cupellation Furnace, Furnace and Assay Supplies. 566160) Carborundum muffle for assays furnace complete with refractory plate. Our Cupellation furnace range is available in a range of sizes, suitable for a range of cupels. High quality 50KW 50KG Induction Melting Furnace Electric For Copper Cans High Performance from China, China's leading induction heating furnace product, with strict quality control metal casting furnace factories, producing high quality metal casting furnace products. 548370) Muffles for cupellation furnaces for fire assay; Ceramic muffle for cupellation furnace 182x235x110mm; Holder for initial assay sampling (cod. 75. 100 PLACE CUPELLATION. Browse he We offer a wide range of sample drying ovens, cupellation, ashing, calcining and roasting furnaces as well as fused silica and fireclay crucibles, for your foundry. Internal Dimension: Deep : 650mm. Electrical Requirements. 1 Piece (MOQ)The cupellation furnace price are temperature resistant, improvised modernized melting procedures to perform precise quality work and are widely popular among gold merchants too. Takes 50 x 6a, 7a, 7as Cupels or 36 x 8s Cupels at one time. 200 mm high x 260 mm wide x 460 mm deep. This time proven, industry standard method has several steps: Fusion. Exceptions will be noted later. C. Spare Parts In the traditional cupellation process for gold and silver, the amount of silver in the gold obtained is very important. It's a diesel furnace (two fan-forced burners at the back) but the burners are mounted quite high up the back of the furnace and i dont think they are powerful enough to cause what you're talking about. 280MJ/HR NOMINAL 200MJ/HR Operating Pressure: 140Kpa Max inlet: 140Kpa Min Inlet: 2. QINGDAO DECENT GROUP consists of Decent Group Limited, Qingdao Decent Electromechanical Tech Co. View Complete Details. Our engineers work closely with our customers to select the right furnace for their needs. It is heated by 9 U-shaped silicon carbide heaters installed on the furnace wall. 00. 60 cupel cupellation furnace (220 - 240 V -SR-three phase n1 N) CF60-400TN CF 60 1200°C, 60 cupel cupellation furnace (380 - 415 V -SR-three phase + N). VWR offers a wide assortment of products and brands in this category. This 25 place fusion (assay) furnace is electrically powers by a 24000 Watt heating element allowing it to reach and hold a temperature of 1200 degrees C (2200 F). Print This Page. Cupels should be 168 x 6A, 7A, or 7AS. / FOB Price:Get Latest Price. Brand: Zhermack. Internal Dimensions: 200 mm high x 260 mm wide x 460 mm deep. Burner Equipment and Ratings. 19M3 Swept Volume: 0. We enable science by offering product choice, services, process excellence and our people make it happen. MFD-168 OIL Cupellation Furnace Page 1 of 3 17 Montgomery Way, Malaga, Western Australia 6090 T: +61 08 9249 4400 F: +61 08 9249 4308 Email: furnace. Contact us today to find out more. The high-temperature cupellation furnace used for assaying is generally called the muffle furnace. Large scale cupellation experiments are entirely based on Agricola’s book, from the construction of the furnace to the conduct of the process. It includes primary chemistries, fusion, reduction, cupellation, oxidation, and parting. • The 10 0 place cupellation furnace can be connected with a 50 place laboratory crucible fusion furnace • Safety goggles, aluminized heat-insulating protective clothing, and aluminized protective gloves must be worn during the whole process of the cupellation • Fire assay cupellation furnace can be customized according to customer needsLearn more about Furnaces (Ashing and Muffle Ovens). Unit: Each. Learn more about Furnaces (Ashing and Muffle Ovens). However, electric and gas models tend to be the most common with the latter being considered the most efficient according to EnergyStar. 00. Description. Furnace Tray 23X16X4. Just lift carton cover, open both carton sides and straddle a complete assay batch. comCupellation Furnace Model MF-C Phone: +61 (0)8 9249 4400 Website: Email: furnace. The cupellation furnace is designed with. 99% pure silver should be added which is called quartation. IndiaMART. Lead Diskettes. Spare PartsIn the traditional cupellation process for gold and silver, the amount of silver in the gold obtained is very important. High quality refractory brick and insulation. Our engineers work closely with our customers to select the right furnace for their requirements, so contact us today to find out more. Place the furnace in a well ventilated room, away from other sources of heat, and on a floor or surface which is resistant to accidental spillage of hot materials. The. 065 grams per 255 grams of mercury. Cupellation Muffle Furnace, 50-Place , Furnace and Assay Supplies. Laboratory Supplies, Sample Preparation and Mining Supplies. Key Benefits Uses a No. 18 Tel: +61 8 9399 9299. Find a trusted Furnace supplier in Perth & Sydney and compare products for sale in Australia. Prima Satria. FAS-160-NG2-50 Place Cupellation Muffle Furnace, Natural Gas - 50-Place Cupellation Muffle Furnace, Furnace and Assay Supplies - Each Brand: KLEN. The furnace features a durable silicon carbide (SiC) muffle, which provides excellent thermal stability, resistance to chemical attack, and efficient heat transfer. Hi-temperature Muffle Furnaces Manufacturers and Factory. 356210)Product Price : Get Latest Price. Cupellation Furnace with Silicon Carbide Heating Elements, Find Details and Price about Furnace Cupellation Furnace from Cupellation Furnace with Silicon Carbide Heating Elements - Qingdao Yosion Intelligent Technology Co. Sell. Product Details Supply a variety of cupellation furnaces for fire assay laboratories Qingdao Decent Group cupellation furnace is a kind of fire assay equipment used to detect the. In addition, if you need to find the right one. Our newest model modular midsize kiln has a chamfered chamber, to accommodate a #12 Mabor Cupel, with which you will cupel the lead from a lead prill, after first performing a fire assay, thus ending up with whatever precious metal is in your ore. 2kg gold melting furnace. Manufacturer of Muffle Furnace for 900 degree, 1200 degree, 1400 degree and 1800 degree. Cupellation Furnaces types CF 15 - CF 60 This manual is for the guidance of operators of the above Carbolite products. 50 Hz: We have developed a. , Ltd. Enhanced ventilation & precision horizontal airflow controls, using exhaust damper and air inlets position on door front. 25 Place Electric Fire Assay Fusion Furnace to Mineral Lab in Africa 24 Sep 2020 . +39. Learn more about filter+units.