Spanish to English Science Chemistry; Chem Sci/Eng

Hello colleagues,
This is on a manufacturing sheet for a pharmaceutical (anti-depressant):
Context:
CICLO DE FILTRACIÓN:
1. Tiempo de barrido N2: SOP 22105
2. Escurrido inicial: mín 10'
3. Disolvente de lavado: Acetato de etilo
4. Cantidad por carga: 60 kg
5. Tiempo de lavado: mín 10'
6. Escurrido final: mín 30'

I'm tempted to translated "escurrido" as "draining", as it's an initial/final process that takes a minimum of 10 and 30 minutes, respectively, but I want to make sure this is correct for the context.

Your help is greatly appreciated!