ChaNaN [Part 2 - Exceptions] (Bitul and Blios #5 - Shulchan Aruch YD 92:3-4)
Rabbi Dovid Cohen
Chatichah Na’aseis Neveilah (חנ"נ) [Part 2] Exceptions Heter; Chametz; Issur d’rabannan; Chalav stam; Not batel b’shishim; Keilim; Sofo l’hishpashet Cold. See seforim by Rabbi Cohen at www.kashrushalacha.com