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  1. #3105054

    Is gnách hiodrocsaíd sóidiam (NaOH) nó hiodrocsaíd chailciam (Ca(OH)2) a úsáid chun an pH a ardú ach is gnách aigéad sulfarach (H2SO4), aigéad hidreaclórach (HCI) nó dé-ocsaíd charbóin (CO2) a úsáid chun an pH a laghdú. D’fhéadfadh deascadh substaintí áirithe a tharlú le linn neodraithe.

    Sodium hydroxide (NaOH) or calcium hydroxide (Ca(OH)2) is generally used to increase the pH, whereas sulphuric acid (H2SO4), hydrochloric acid (HCl) or carbon dioxide (CO2) is generally used to decrease the pH. The precipitation of some substances may occur during neutralisation.

    Commission Implementing Decision (EU) 2023/2749 of 11 December 2023 establishing the best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council on industrial emissions, for slaughterhouses, animal by-products and/or edible co-products industries (notified under document C(2023) 8434)

  2. #3233664

    Chun gach ceann de na dúile a chinneadh, déan raon tuaslagán calabrúchán a ullmhú ó na tuaslagáin chaighdeánacha oibre a thugtar i bpointí 3.7.1, 3.8.1, 3.9.1 agus 3.10.1, a mbeidh tiúchan HCl de thart ar 0,5 mol/lítear (agus (i gcás iarainn, mangainéise agus since) tiúchan clóiríde lantanaim atá coibhéiseach le 0,1 % La (w/v)) ag gach tuaslagán calabrúcháin.

    For each of the elements to be determined, prepare from the working standard solutions given in points 3.7.1, 3.8.1, 3.9.1 and 3.10.1 a range of calibration solutions, each calibration solution having an HCl concentration of about 0,5 mol/litre (and (in the cases of iron, manganese and zinc) a lanthanum chloride concentration equivalent to 0,1 % La (w/v).

    Commission Implementing Regulation (EU) 2024/771 of 29 February 2024 amending Regulation (EC) No 152/2009 laying down the methods of sampling and analysis for the official control of feed

  3. #3234332

    Tar éis 5 ml d’aigéad hidreaclórach 6 mhol/lítear (pointe 3.2) agus thart ar 30 ml d’uisce a chur leis, déan an tuaslagán a théamh, scag isteach i bhfleascán toirtmhéadrach 250 ml é agus líon go dtí an toirt inmhianaithe le huisce (tiúchan HCl de thart ar 0,5 mol/l).

    Add five drops of sulphuric acid (point 3.5) and heat until no more white fumes are given off. After the addition of 5 ml of 6 mol/litre hydrochloric acid (point 3.2) and about 30 ml of water, heat, filter the solution into the 250 ml volumetric flask and make up to the mark with water (HCl concentration about 0,5 mol/l).

    Commission Implementing Regulation (EU) 2024/771 of 29 February 2024 amending Regulation (EC) No 152/2009 laying down the methods of sampling and analysis for the official control of feed