‘batch’ means to process a definite amount of WEEE appliances or WEEE fractions separate from other input material but with the same plant components and under the (nearly) same plant conditions as they would be used in daily practise;
as ‘batch’ a definite input amount [tons or units] can be used (e.g. mechanical processing) and/or a definite working period [e.g. some days, a week etc.] can be agreed (e.g. mainly for manual dismantling)