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Homepage>CSN Standards>50 PAPER INDUSTRY PRODUCTS>5003 Paper, testing>CSN EN ISO 15755 - Paper and board - Estimation of contraries (ISO 15755:1999)
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FREE SHIPPINGReleased: 1999
CSN EN ISO 15755 - Paper and board - Estimation of contraries (ISO 15755:1999)

CSN EN ISO 15755

Paper and board - Estimation of contraries (ISO 15755:1999)

CURRENCY
LANGUAGE
English
Category:500323
Released:1999
Number of Standard:CSN EN ISO 15755
DESCRIPTION

EN ISO 15755


EN ISO 15755 Paper and board - Estimation of contraries (ISO 15755:1999) - This European Standard specifies the test method for the estimation by reflected light of the visible contraries in paper. Visual inspection is applicable to most kinds of paper and board. Paper and board with an apparently high content of contraries require to be inspected by instrumental means as described in Annex B, as the tedium of large counts diminishes the judges' precision. However, papers which are not flat, have a low lightness (value below 30 %) and contain holes that may cause particular problems for instrumental techniques (see Annex B).

Original English text of CSN EN Standard.
The price of the Standard included all amendments and correcturs.
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