This International Standard describes the specification and preparation of standard tap water, of conductivity between 40 mS/m and 150 mS/m, for drainability measurements. This International Standard is applicable to all kinds of pulps. NOTE ISO 14487[1] describes the specification and preparation of standard distilled/deionized water.
GSO ISO 14436:2013 history
2013GSO ISO 14436:2013 Pulps - Standard tap water for drainability measurements - Conductivity 40 mS/m to 150 mS/m