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Verifiers
NIP correctness in Poland
Jak sprawdzić poprawność numeru NIP?
Verifier allows you to validate the tax identification number entered
Tax identification number is a code used to identify taxpayers in Poland, which consists of 10 digits.
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Verifiers
Verification ISBN preview
Jak sprawdzić numer ISBN?
Jak zweryfikować numer ISBN?
Jak zweryfikować numer ISBN?
Calculator allows you to verify the ISBN number entered.
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Verifiers
Verification of the social security number in Poland
It presents data deriving from the unique social security number, such as date of birth, sex, serial number and check its correctness.
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Verifiers
Verifier numbers EAN-13 preview
Verifier numbers EAN-13
Calculator allows you to verify the number entered EAN-13.
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GFR - glomerular filtration rate
Glomerular filtration rate (called glomerular filtration rate, GFR) - the amount of plasma filtered per unit time by the so-called glomeruli. primary urine. Is usually given in ml / min. GFR allows the assessment of renal function.
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Financial
Coverage of debt
Calculator to the data calculated debt coverage ratio. WPD - is often used as an indicator in assessing credit worthiness.
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Physical
Resistivity and conductivity
The calculator calculates the resistivity and conductivity of the material from the resistance, cross-sectional area and the length of the element at 20 ° C.
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Life
Calculator child's blood group
Calculator based on blood group made of both parents, given that they are owned by the child possible blood groups.
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Building
Compare the cost of heating oil and pumps OCHSNER
Calculator is used to compare the operating costs for heating oil and pumps OCHSNER.