<iframe src="https://podeduc.apps.education.fr/video/63964-tutoriel-etalonnage-phmetre-ga/?is_iframe=true" width="640" height="360" style="padding: 0; margin: 0; border:0" allowfullscreen loading='lazy'></iframe> Tutoriel étalonnage pHmètre GA PodEduc https://podeduc.apps.education.fr/videos/?owner=Xd4j8QD-JvYGZ0iXXdqQYhcDgt4 360 https://podeduc.apps.education.fr video 640 1.0 Bertrand PESQUET