Indicator
It shows the state of a substance e.g. pH-value or peroxide content. Indicator papers contain substances which react by changing of their colours on the kind and quantity of the material to be indicated. With this, it is possible to ascertain the concentration of the substance in question by means of comparative scales.

Intermediate cleaning
See:cleaning

Laminate
Synthetic resin pressed sheets of veneer on particle boards or paper impregnated with synthetic resin (trade product RESOPAL)

Laminate floor
Floor laid with laminate

Lime soap
Not easily dissoluble and washable combination of soap and lime especially in case of hard water. Removal with acid cleaning agents (sanitary cleaner)

Magnesite
Stone floor-like industry floor (magnesium-oxychloride-cement), dirt treatment and care with inlet oils

Maintenance cleaning
See:cleaning

Marble
Stone out of crystallised calcium carbonate, sensitive to acids and can therefore be regenerated through crystallisation

Minerals
inorganic combinations
See:salt

Mites
See:house dust allergy

Neutral
PH 7 – between acid and alkaline (like for example water).
See:pH-value

Neutral cleaning agents
soft cleaning agents for subsoil which is sensitive on acids and caustic solutions
See:pH-value, See:neutral

Neutralisation
Transformation of an acid or alkaline reacting solution into a neutral one by adding an opposite pH compound. That means, an acid can be neutralised by a caustic solution and a caustic solution by an acid.
See:floor neutralisation, See:pH-value

PH-value
Measure of acid-/caustic-solution-degree of a liquid solution. The lower the pH-value the more acid reacts the solution, the higher the more alkaline. PH 7 is neutral.



......acid (acid)................................................................... neutral alkaline
...........................................................................................(caustic solution)

In cleaning practice checking of the pH-value is effectively done with an indicator paper:
KÄRCHER-Acilid, acid area, pH 0 – 6, order-no. 6.768-010,
KÄRCHER-Neutralit, neutral area, pH 5 – 10, order-no. 6.768-011,
KÄRCHER-Alkalit, alkaline area, pH 7.5 – 14, order-no. 6.768-012.
See:neutralisation, See:floor neutralisation

PI
See:product information

Polishing
That is a procedure of mechanical power influence on surfaces by means of a suitable polishing material (e.g. soft textile fibres or brushes) which creates smoothness on the surface and gloss at the same time. The smoothness on the surface and the levelling out of possibly present scratches can be removed by application and spreading out of polishing agents like waxes or polymer emulsions but also by mechanical or chemical de-coating of the scratched top layer.
See:"Cleanern", See:crystallisation

Pre-dilution
Lots of our products are intensely concentrated that they can only be dosed inexact in this form or cannot sufficiently be diluted e.g. with high-pressure cleaners. Therefore they are diluted in advance and then the prepared pre-diluted solution is dosed.
See:application of cleaning agents

Pre-spraying
Spraying of a cleaning solution on a soiled surface to enable a longer reaction time before the real cleaning step.
See:2-step-method

Product information
PI, product info – an information sheet for each KÄRCHER cleaning agent or care product (cleaning agents, care products, water softening agents, de-liming agents and emulsion splitting agents).
PI's inform you about properties, fields of application, processing, productiveness, possibilities of machines which can be used and additional information about system application with KÄRCHER cleaning machines and accessories as well as about packaging sizes and order-numbers.

Productiveness
Consumption of cleaning agents per surface unit
See:economy