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Table 2 Tensile strength of original and aged paper after irradiation, bold represents tensile strength and italics represent relative standard deviation

From: Effect of electron beam irradiation on China traditional paper

Process	Direction		Bark Paper			Bamboo 1			Bamboo 2			Xuan paper 1			Xuan paper 2
Process	Direction	Dose/kGy	Mean	RSD	Factor	Mean	RSD	Factor	Mean	RSD	Factor	Mean	RSD	Factor	Mean	RSD	Factor
irradiated	CD	0	0.49	12.81	NS	0.85	9.02	NS	0.73	13.33	NS	0.50	19.90	NS	0.78	8.36	NS
		5	0.52	16.00	NS	0.82	11.19	NS	0.81	7.60	S	0.52	16.57	NS	0.78	7.86	NS
		10	0.47	11.93	NS	0.78	8.51	NS	0.76	13.85	NS	0.48	17.54	NS	0.78	9.84	NS
		15	0.45	16.15	S	0.76	8.84	S	0.72	8.18	NS	0.46	18.59	NS	0.80	8.25	NS
	MD	0	0.82	19.47	NS	1.07	12.04	NS	1.15	11.35	NS	0.96	9.50	NS	1.22	19.84	NS
		5	0.81	19.03	NS	0.97	15.00	NS	1.23	14.90	S	0.98	7.95	NS	1.23	19.17	NS
		10	0.80	15.52	NS	1.06	10.28	NS	1.26	7.83	S	0.98	10.40	NS	1.25	18.28	NS
		15	0.78	15.87	NS	0.89	15.86	S	1.23	7.58	S	0.96	11.33	NS	1.24	16.36	NS
Aged-irradiated	CD	0	0.27	25.86	NS	0.70	11.55	NS	0.61	13.93	NS	0.32	9.79	NS	0.66	5.75	NS
		5	0.25	27.61	NS	0.67	13.68	NS	0.71	7.88	S	0.39	11.53	S	0.66	4.36	NS
		10	0.24	32.50	NS	0.68	9.10	NS	0.71	10.87	S	0.34	15.45	NS	0.65	4.46	NS
		15	0.26	22.83	NS	0.67	12.66	NS	0.68	11.59	S	0.35	21.44	NS	0.63	5.55	S
	MD	0	0.42	6.89	NS	0.95	8.49	NS	1.21	5.99	NS	0.72	5.96	NS	1.42	4.10	NS
		5	0.39	9.21	NS	0.95	9.12	NS	1.28	7.52	NS	0.78	6.85	S	1.38	4.93	NS
		10	0.44	13.17	NS	0.94	7.46	NS	1.24	6.98	NS	0.78	7.06	S	1.42	3.95	NS
		15	0.66	12.99	S	0.92	8.99	NS	1.33	9.97	S	0.73	4.13	NS	1.49	3.48	S

Tensile strength of original and aged paper after irradiation. CD and MD represent cross and machine direction, respectively. Mean represents represents the average value (values in bold); RSD is the relative standard deviation (values in italics); Factor shows the result of statistical analysis; S indicates a significant difference and NS denotes no significant difference.

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