Table 5.

Ash content for nuts shells.

Nut shells	ASTM	Ash Content	Source
Peanut hulls (PHs)	E1755	4.06 ± 1.55	Exp.
PH	D1102	5.49	42
PH	—	3.8	43
PH	EN14775	4.26	4
Cashew Shells	E1755	5.3	33
Pistachio Nutshells	3174–04	2–3.6	69
Walnut Shells	—	0.69	70
Pecan Shells	D3174	1.6	12