PDA

View Full Version : Αποστειρωση...


Nik
27.11.2008, 09:25
Βρηκα αυτο το αθρο σε ενα φορουμ.Εινα στα αγγλικα αλλα εχει οδηγιες πως να φτιαξουμε διαλυμα με Betadine που να μην θελει ξεβγαλμα με νερο μετα το επισυναπτω...Δουλευει ομως?

Iodophor and Betadine/Videne

Iodophor is a combination of iodine and an agent such as Povidone to make it water soluable.

Iodophor solution is dilluted with water and it releases free iodine, which is an effective bactericide and fungicide, it kills bacteria, mould and wild yeast that could spoil your beer.

Preperation: To make an effective no rinse solution it should be diluted to no less than 12.5ppm and no more than 25ppm. (more than 25ppm requires rinsing).

Below are the various dilution rates for the different brands of iodophor to produce solutions of 12.5ppm, they vary with the amount of free iodine in the iodophor product.

Dillution Rates (for 12.5ppm):

Betadine 10% (1% free iodine) dillution is 1.25ml/l .

Videne (is a direct replacement for Betadine), suggest using as Betadine unless new info comes to light.

Instructions for use: The item being sanitised should be kept wet with an iodophor solution for 30 seconds or more then allowed to drip dry (or almost dry). Hand sprayers are ideal for wetting surfaces to be sanitised by iodophor.

Effectiveness: Iodophor's effectiveness can be approximated by it's colour. As long as the colour hasn't faded from that of the original preparation there is still the required level of iodine available for effective sanitisation.

When making a preparation of iodophor, filtered water is recommended (such as water that has passed through a Brita filter to remove chlorine and chloramines). Iodophor solutions made with filtered water have been shown to maintain their colour and therefore effectiveness for longer.

Tests have shown that the bactericidal activity (effectiveness) greatly reduces with an increase in ph. Solutions at ph 3-5 are significantly more effective than at ph7. If you live in a hard water area it is advisable to add 1 tsp of citric acid to the solution.

Iodophor solutions that are within the recommended ph range maintain their colour and therefore effectiveness for longer.

beerallica
27.11.2008, 13:54
Εγώ betadine χρησιμοποιώ, αλλά ανεξάρτητα απ' οτιδήποτε λέει στην ετικέτα ο κατασκευαστής οποιουδήποτε προϊόντος, πάντα ξεβγάζω τα μπουκάλια μου. Better safe than sorry.

Nik
27.11.2008, 14:03
Ναι ενταξει και εγω αυτης της αποψης ειμαι γιατι ακουγονται και διαφορα για τετοια σκευασματα.