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  • Agriculture - Hanna Instruments Slovenija
    nutrients like nitrogen N phosphorus P potassium K calcium Ca magnesium Mg and many others All of the above mentioned parameters are crucial for the proper growth of plants and vegetables Why would you wait for the laboratory analysis if you can do all by yourself Hanna Instruments has also developed advanced fertigation systems for all types of culture The importance of variuos parameters for the agricultural sector Below you can find some hints on the importance of various parameters for t he agricultural sector Why is it important to test the soil Plants need the right combination of soluble salts and nutrients to grow and flourish Trees and plants extract nutrients from the soil and in case those are not properly replenished then they cause soil deficiencies and this results in the stuned growth and unhealthy plants Why is it important to measure pH and EC of the soil pH and Ec are the most fundamental parameters when testing the soil because they have great influence on the ability of plants to absorb essential nutrients pH Each soil has its own pH which can be acid neutral or alkaline The value of pH extensively influences on the ability of absorbing nutrients The optimum value of pH of the soil is around the neutralization pH 7 in order to obtain the best absorption However each plant has its own interval of pH in which it grows best if it manages to properly absorb the nutrients such as nitrogen potassium phosphorus etc Therefore it is essential to measure the value of pH so that you can choose the right culture for the soil or in order to intervene on time in case the value changes EC The soil salinity is highly connected with the quantity of minerals in it and it

    Original URL path: http://www.hannaservice.si/en/agriculture (2016-04-28)
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  • Food and Dairy - Hanna Instruments Slovenija
    have a very frequent illness mastitis which causes the milk not suitable for people The normal value of sodium should be 18 20 mEQ L Meat In this phase it is very important to control three significant parameter pH temperature and humidity In order to prevent bacterial contamination it is important to follow hygienic rules during the slaughtering keep the meat at constant temperature and avoid too much time between the slaughter and consumption at the most 15 days The value of pH between 5 3 and 5 5 indicates a correct course of hanging After the slaughtering the meat should be kept at the temperature around 10 15 C for at least 12 hours to avoid meat hardness Later the meat is to be kept for several days at a temperature of refrigeration 4 C to avoid germs multiplying Flour from cereals The main problem is mould The mould is dangerous because it may cause the development of mycotoxins In order to avoid this it is important to check two parameters temperature and humidity Vegetables and fruits In this field there are several important factors pH temperature humidity but also soluble solids acidity and sugars The sugar parameter is very important to determine the ideal moment for harvesting The sugar parameter can be measured in an easy and fast manner by using the refractometer Fish The fish is similar to meat however it deteriorates easily therefore besides controlling pH it is important to monitor also the temperature during the stocking and the transportation Olives and seeds Usually the time between harvesting and pressing the olives is rather short but it can also delay a bit if we keep the olives in dry and airy places In this case it is important to monitor temperature and humidity B Production Meat The meat goes through various preparations in order to keep it well One of the principal typologies of meat preparation are salamis Their seasoning takes place in appropriate places where the preparing remains from 1 to 5 months at the temperature from 11 15 C with the relative humidity of 85 In this phase there is a decrease of the water activity and simultaneously also and increase of the concentration from 2 5 3 5 to 10 Firstly the pH reduces but then it rises up to 5 3 to 6 pH The important parameters to be tested are temperature relative humidity water content and pH Dairy products Pasteurized milk In this process it is very important to monitor carefully the temperature in order to decrease the bacteria of the milk and to make it more resistent for a longer period Yoghurt The parameters which have to be controlled are the temperature and the pH In order to obtain the yoghurt firstly we have to standardize 6 5 6 7 pH the raw milk then we have to pasteurize it 90 C for 5 minutes homogenize it and concentrate it After that we can proceed with the inoculation of bacterial

    Original URL path: http://www.hannaservice.si/en/food-and-dairy (2016-04-28)
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  • Enology - Hanna Instruments Slovenija
    HANNA Instruments offers to winemakers a wide range of products for wine analysis Among our products you can find titration systems photometers benchtops and portable meters turbidity meters and electrodes for measuring pH copper iron tartaric acid colours and phenol in wine Hanna products for wine analysis When is the best time to harvest In order to choose the best period for harvesting it is necessary to weigh the balance between acid and sugar in the grapes During the ripening of the grapes the quantity of the acids present reduces while the amount of sugar increases The ideal time to harvest would be when these two substances are balanced Therefore the grape maturation is a crucial factor for the quality of musts and consequently the wine In case you would like to get wine with a higher amount of acid like with white wines you should start harvesting earlier In case you would like to get wine with a higher sugar content like with red wines you should start harvesting later on What is the best method to measure the amount of sugar present in wine Usually this measurement is carried out with a mechanical method or with a densimeter and transparent cylinder We propose you to use our refractometers which measure the refractive index of liquids Such a method has two advantages Only a couple of drops of juice from the berries are required for the measurement The method is very fast The m easurements can be made in a few seconds Why is it important to measure the amount of sulfur dioxide in wine Sulphur dioxide is the last line of defense against oxidation and it is therefore required to constantly monitor it Why is it important to measure the amount of ammonia present in wine The quantity

    Original URL path: http://www.hannaservice.si/en/enology (2016-04-28)
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  • Pools - Hanna Instruments Slovenija
    2015 Shampoo is a hair care product used for removal of dirt dandruff skin particles oils and other contaminated particles As the scientists behind hair care progressed manufacturers synthesized chemical additives for use in shampoo as fragrance foaming agents and colored dyes Shampoo is now created and structured towards various hair types as well as to achieve a certain end result such as the reduction of dandruff or greasy hair Both the synthetic and natural ingredients used in a shampoo dictate the pH of that particular product The pH of a shampoo will alter the natural pH of skin and hair which ideally falls between pH 3 and 5 and pH 4 and 5 respectively thereby affecting their physical and chemical makeup Read more Pools Twitter Share on Tumblr HANNA Instruments offers pool contractors CPO s and homeowners a variety of water testing equipment Hanna offers testers photometers chemical test kits controllers monitors and free and total chlorine analyzers DON T MISS Season of the swimming pool construction has been opened See our most sold products for analysis and monitoring pool water For more information about our products click HERE or contact us by phone or e mail What shoud the pH of your pool be The pH of a pool should be around 7 4 pH has a tendency to move up in a pool due to dirt sweat lotion urine etc Higher pH means less effective chlorine You can usually lower the pH by adding muriatic acid What should the TDS value of your pool be The TDS of a pool doesn t really have an official recommended value For regular chlorine pools most pool operators will try to keep the TDS around 1500 ppm 1 5 ppt For a pool that has a salt chlorine generator the

    Original URL path: http://www.hannaservice.si/en/pools (2016-04-28)
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  • Measuring pH in shampoo - Hanna Instruments Slovenija
    chemical additives for use in shampoo as fragrance foaming agents and colored dyes Shampoo is now created and structured towards various hair types as well as to achieve a certain end result such as the reduction of dandruff or greasy hair Both the synthetic and natural ingredients used in a shampoo dictate the pH of that particular product The pH of a shampoo will alter the natural pH of skin and hair which ideally falls between pH 3 and 5 and pH 4 and 5 respectively thereby affecting their physical and chemical makeup The human scalp contains sebaceous glands which secrete sebum a semiliquid substance composed of glycerides waxes and fatty acids Sebum coats cuticle which is the outer layer of hair to prevent loss of water The presence of sebum helps to maintain soft and flexible hair as well as prevent the growth of bacteria and the spread of fungal infections on the scalp However sebum also attracts dirt Shampoo is composed primarily of cleaning agents such as detergents that work to remove dirt and excess sebum leaving a light layer of sebum on the scalp A detergent molecule is composed of both nonpolar and polar portions permitting oil and grease to be stripped from the scalp and hair by the nonpolar portion and washed away with water by the polar component upon reaction with water detergent molecules tend to produce alkaline solutions Hair is composed of long parallel chains of amino acids that are connected by forces such as hydrogen and disulfide bonds and salt bridges between acid and base groups Environments that are either too alkaline or too acidic can affect and at some levels break these bonds At pH levels between pH 1 and 2 both hydrogen bonds and salt bridges are broken At slightly alkaline

    Original URL path: http://www.hannaservice.si/en/hanna-blog/394-ballance-out-the-coolant-and-allow-the-natural-gas-to-be-transported-2 (2016-04-28)
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  • 5 najpomembnejših nasvetov pri kalibraciji vašega pH merilnika - Hanna Instruments Slovenija
    kalibracija ali zakaj so vaši odčitki izključeni Danes vam bomo podali seznam nasvetov ki vam bodo pomagali pri kalibracji vašega merilnika ne glede na to ali opravljate kalibracijo prvič ali tridesetič 1 Vedno preberite navodila za uporabo Kalibracijski postopki se spreminjajo glede na določeno uporabo merilnika Da bi najbolje razumeli vaše posebne merilnike je pomembno da zmeraj preberete navodila ki jih prejmete skupaj s vašim pH metrom 2 Prepričajte se da imate vse potrebne pH pufre Pri izvajanju pH kalibracije je pomembna uporaba primernih pufrov Na primer če želite meriti nekaj s pH vrednostjo 9 in če kalibrirate vaš pH meter za pH vrednost 7 morda ne boste dobili natančnih meritev To je zato ker so pH meritve najbolj točne ko se kalibracijske točke skupne z vašimi meritvami Prav tako morate preveriti datum izteka pufrov in kako dolgo je bil pufer odprt Nekateri odprti pufri ki imajo PH vrednosti 10 potečejo mnogo prej 3 Pogosta kalibracija Za najbolj natančne meritve vam priporočamo kalibracijo vašega merilnik vsakič ko izvedete nov sklop meritev Kalibracija vam lahko prav tako pomaga prepoznati težave z vašo elektrodo Predlagamo vam da vaš merilnik kalibrirate Po prvi uporabi Po dolgem času skladiščenja Pri izvajanju novih sklopov meritev 4 Bodite pozorni na vaš naklon in odmik Vaš naklon in odmik imajo pomemben vpliv na stanje vaše elektrode Hanna Instruments vam priporoča da odmik ne presega 30mV in da je odstotek naklona med 85 105 Če imate slab odmik bi to lahko pomenilo da imate bodisi zamašeno stičišče ali da morate očistiti vašo sondo Če se vam to zgodi poskusite namočiti vašo sondo v čistilno raztopino in ponoviti postopek preverjanja odmika Če je vaš naklon slab bi to lahko pomenilo da uporabljate potečene ali kontaminirane pufre Zmeraj si zagotovite da uporabljate sveže pufri Veliko naših metrov vam bo ob

    Original URL path: http://www.hannaservice.si/sl/hanna-blog/391-5-najpomembnejsih-nasvetov-pri-kalibraciji-vasega-ph-merilnika (2016-04-28)
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  • Slovenski kemijski dnevi 2015 - Hanna Instruments Slovenija
    vam bomo predstavili nekaj nasvetov za uporabo in vzdrževanje vaših testerjev Več Poslovno sodelovanje Ste zainteresirani za poslovno sodelovnje s HANNA Service Za več informaciji kliknite TUKAJ ali nas kontaktirajte po telefonu ali e mailu Slovenski kemijski dnevi 2015 Twitter Share on Tumblr Objavljeno 28 September 2015 Podjetje Hanna Service d o o se je tudi letos udeležilo Slovenskih kemijskih dnevov v Ljubljani ki so se odvijali med 24 25 september 2015 na Fakulteti za kemijo in kemijsko tehnologijo Predstavili smo Hannine najbolj zanimive kemijske izdelke ki imajo posredno ali neposredno aplikacijo v več kot 100 ekonomskih sektorjih Raziskovalni metri Vse metri serije HI5000 imajo velik barvni LCD zaslon kapacitivne tipke na dotik in USB vhod za računalniško povezljivost S idealnim zornim kotom in inovativnim dizajnom so ti merilniki kot nalašč primerni za vse velikosti laboratorijev Uporabniški vmesnik serije HI5000 je zelo prilagodljiv in omogoča uporabnikom prikaz različnih načinov merjenja v realnem času grafov in GLP podatkov Dodatne funkcije vključujejo prilagojene nastavitve kalibracije in pufrov tri vrste beleženja podatkov programabilno omejitev alarma in namensko kontekstualno pomoč uporabnikom HALO pH sonda z Bluetooth pametno tehnologijo HALO je prva profesionalna pH sonda z Bluetooth pametno tehnologijo Bluetooth 4 0 Sonda je visoke kakovosti ima dvojni spoj ponovno napolnljivo pH sondino steklo z vgrajenim temperaturnim tipalom ki se lahko uporablja praktično povsod na terenu v laboratoriju ali predavalnici HALO prenaša podatke meritev neposredno v iPad ni vključen Za prenos podatkov potrebujete aplikacijo Hanna Lab edge M ultiparametrski pH m eter Edgev prelomni dizajn predstavlja Hannino vizijo sposobnosti načrtovanja integriranega proizvoda in svetovnega razreda R R Za tiste ki preferirajo zelo poenostavljeno delovanje lahko uporabljajo osnovni operacijski način s poenostavljenim meniju in ostalimi možnostmi Za tiste ki potrebujejo napredno delovanje obstaja napredni standardni način delovanja Avtomatski titracijski sistem HI902C je avtomatski titrator ki dopolnjuje

    Original URL path: http://www.hannaservice.si/sl/hanna-blog/389-slovenski-kemijski-dnevi-2015 (2016-04-28)
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  • Zakisljevanje oceanov: Absorpcija ogljikovega dioksida - Hanna Instruments Slovenija
    tvori koncentracijo ogljikove kisline nakar se vodikovi ioni vežejo s karbonatom ter tvorijo bikarbonat Ko se prične ta proces se zmanjšaja koncentracije karbonata kar posledično predstavlja težavnost za kalcificirane vrste kot so školjke ki izpostavijo svoje lupine kalcijevemu karbonatu Školjke pridobijo bikarbonatne ione iz morske vode in uporabljajo beljakovine v svojih telesih za tvorbo kristalov kalcijevega karbonata ter za oblikovanje svoje dvoslojne lupine V bolj kisli vodi je za školjke na voljo manj bikarbonatih ionov Uporaba pH metra za merjenje pH vrednosti vode Čeprav se lahko to morda zdi skromen problem lahko le ta ovira na rast razvoj in reprodukcijo manjših morskih organizmov kot so lupinarji krili in plankton kar lahko povzroča okvare morskih prehranjevalnih spletov Ne samo da lahko slednje prizadene večje morske organizme ampak lahko tudi v končni fazi vpliva na komercialno ribiško industrijo in njihovo preživetje Eden od načinov v katerem lahko zaznamo povečanje ogljikovega dioksida je merjenje pH vrednosti vode z uporabo pH metrov Merjenje pH vrednosti lahko pomaga uporabnikom boljše razumevanje kemijskega vidika naših oceanov Hanna Instruments ponuja različne pH metre ki so primerni za merjenje pH vrednosti v laboratorijih in na terenu Prenosni merilniki HI9829 multiparametrski prenosni merilnik Robusten vodotesen in enostaven za uporabo HI 9829 je idealen merilnik za terenske meritve jezer rek in morja Obe merilnika prikazujeta 1 do 12 parametrov skupaj s 15 nastavljivimi parametri HI2020 edge multiparametrski merilnik Vrhunsko oblikovan edge merilnik ima sposobnost načrtovanja integracije proizvodnega in svetovnega razreda R R Edge je merilnik s katerim lahko izmerimo pH prevodnost in vrednost raztopljenega kisika ter je izjemno enostaven za uporabo Namizni merilniki HI2212 Namizni merilnik s tritočkovno kalibracijo HI 2212 je pH in temperaturni namizni merilnik Kalibracija se lahko izvede do treh točk ki uporabljajo pet standardnih in dva prilagojena odbojnika Ta merilnik ima ročno ali avtomatsko temperaturno kompenzacijo

    Original URL path: http://www.hannaservice.si/sl/hanna-blog/387-zakisljevanje-oceanov-absorpcija-ogljikovega-dioksida (2016-04-28)
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