Table 7.

Elemental composition (wt.%) of ash collected from various tests; details given of magnifications applied in the ESEM for each case (×250: 250 times magnified; ×500: 500 times magnified; ×1000: 1000 times magnified; ×2000: 2000 times magnified); SF: simulant faeces; RF: real faeces.

Spectrum	Test	Description	C	O	F	Na	Mg	Al	Si	P	S	Cl	K	Ca	Ti	Mn	Fe	Zn
1	SF Test 1	Global (×250)	3.97	36.94	0.22	4.89	0.66	–	0.32	15.02	0.09	4.72	3.07	30.09	–	–	–	–
2	SF Test 1	Detail 1 (×500)	5.14	35.15	0.27	4.98	0.61	–	0.31	15.14	0.09	4.9	2.85	30.55	–	–	–	–
3	SF Test 1	Detail 2 (×1000)	10.76	35.53	0.58	3.62	0.56	–	0.20	13.25	0.18	3.8	3.08	28.43	–	–	–	–
4	RF Test 2	Global (×250)	0.79	40.92	0.83	0.94	11.9	–	0.58	11.65	0.75	0.24	12.72	18.11	–	–	0.57	–
5	RF Test 2	Detail 1 (×500)	8.77	33.76	0.20	1.06	4.31	–	0.58	12.07	0.76	0.76	15.72	21.32	–	–	0.70	–
6	RF Test 2	Detail 2 (×1000)	15.68	34.04	0.32	0.77	4.41	0.32	0.6	12.01	0.51	0.50	10.46	19.63	0.26	–	0.51	–
7	SF Test 3	Detail 1 (×1000)	51.67	22.75	0.30	1.75	0.22	–	0.10	5.65	0.21	3.29	2.08	11.98	–	–	–	–
8	RF Test 4	Global (×250)	4.83	39.98	0.38	0.51	6.31	0.18	0.69	13.01	0.28		8.73	23.92	–	–	0.47	0.70
9	RF Test 4	Detail 1 (×500)	19.45	32.73	0.50	1.02	3.66	–	0.51	10.65	0.76	0.56	11.4	17.51	–	–	0.43	0.84
10	RF Test 4	Detail 2 (×1000)	11.24	33.29	0.20	1.14	3.98	–	0.38	11.5	1.61	0.44	13.72	21.78	–	0.26	0.47	–
11	RF Test 4	Detail 3 (×1000)	12.08	33.31	0.50	1.34	4.57	0.91	0.89	11.31	0.47	0.53	15.86	17.10	0.15	0.18	0.43	0.38
12	RF Test 5	Global (×250)	9.83	33.86	0.47	0.78	4.34	0.15	0.64	12.70	0.72	1.37	14.09	19.46	–	–	0.34	1.24
13	RF Test 5	Detail 1 (×500)	23.31	29.24	0.34	0.57	3.67	0.17	0.40	9.22	1.23	1.68	13.42	15.65	–	–	0.45	0.64
14	RF Test 5	Detail 2 (×1000)	10.54	36.44	0.63	0.67	5.00	0.33	0.45	13.95	0.38	0.49	6.83	23.92	0.15	–	0.22	–
15	RF Test 5	Detail 3 (×2000)	12.63	30.18	0.43	0.70	3.16	0.06	0.29	8.16	4.93	1.16	9.7	27.74	0.17	–	–	0.68