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What quality controls are there for STAEDTLER Ink Jet products?

April 26, 2017controls ink jet products quality staedtler

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What quality controls are there for STAEDTLER Ink Jet products?

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The STAEDTLER quality controls already take effect before the products appear on the market. Special storage tests under extreme climate conditions ensure a shelf life of at least 2 years. Quality controls take place at every phase of production. In the final control, the color fidelity and the physical values of the ink are checked.