The permanganate clearing time, as determined by the method specified, is the number of minutes required for the colour of the sample to match that of the colour standard after adding 1 ml of a 1 mmol/l potassium permanganate solution to 10 ml of the sample.

The time for the colour of the sample, after addition of potassium permanganate, to match that of a colour standard is determined and defined as the permanganate clearing time.

The Draftsman welcomes the reclassification of Potassium permanganate in Category 2 according to Regulation 1232/2002 that repealed the annexes of Regulation 3677/90.

The permanganate clearing time, as determined by the method specified, is the number of minutes required for the colour of the sample to match that of the colour standard after adding 1 ml of a 1 mmol/l potassium permanganate solution to 10 ml of the sample.

Whereas several Member States have communicated the relevant information to the Commission with regard to the products which were in common use in organic farming on their territory before 24 June 1991 and are not included in Annex II to Regulation (EEC) No 2092/91; whereas they have also indicated that those products are still authorized in the Member State concerned in agriculture in general; whereas after examination of the requests of the Member States, it has appeared appropriate to include at this stage the product 'clays` as additional soil conditioner and the following products as plant protection products: azadirachtin, beeswax, certain copper compounds, ethylene, gelatine, potassium ...[+++] alum, lime sulphur, lecithin, extract from Nicotiana tabacum, microorganism preparations, mineral oils, potassium permanganate and quartz sand;

Subsequently, it oxidizes slowly.3.3.Potassium permanganate solution.