Verifiers

Verifier ISMN numbers

Calculator allows you to verify the number entered ISMN (International Standard Serial Number Printing music).

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72140

Verifiers

Verification ISBN preview

Jak sprawdzić numer ISBN?
Jak zweryfikować numer ISBN?

Calculator allows you to verify the ISBN number entered.

59820

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.

49743

Verifiers

Verifier numbers EAN-13 preview

Verifier numbers EAN-13 Calculator allows you to verify the number entered EAN-13.

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Financial

ROCE - an indicator of the efficiency of investment

The calculator calculates ROCE on the basis of these pre-tax profits, total capital and current liabilities ROCE (called Return On Capital Employed) - an indicator of the efficiency and profitability of the investment, which is the capital of the company involved.

952530

Building

Insulation of wall

Jak policzyć izolację ścian?

Calculator allows you to calculate the amount of insulation panels needed to cover the walls of the building using the "light wet" or "dry light" methods.

1614207

Life

Rainwater tank

The calculator calculates the amount of collected rainwater from the roof of the given dimensions. Long description

15562

Chemical

Law Gay-Lussac

Calculator based on the programmed temperature and pressure values are calculated using the selected parameter Gay-Lussac law.

199927

Building

Raw materials for the construction of modular suspended ceilings - covered grill, removable plates

Calculator allows you to calculate the quantity of materials for the construction of modular ceilings.