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Carbon Black Hardness Table

ASTM Designation	Former Name	Iodine absorption No. *D-510,g/kg	DPB No. D-2414 cm³/100g	DPB No. Compressed Sample, D-3493 cm³/100g
N - 110	SAF	145	113	98
N - 121	-----	120	130	---
N - 212	-----	117**	86	82
N - 219	ISAF-LS	118	78	75
N - 220	ISAF-HM	121	114	100
N - 231	ISAF-LM	125	91	86
N - 234	-----	118	125	100
N - 242	ISAF-HS	123	126	106
N - 285	-----	102	126	103
N - 293	CF	145	100	92
N - 294	SCF	205	106	---
S - 315	-----	86**	79	75
N - 326	HAF-LS	82	71	69
N - 327	HAF-LSHAF	86	60	50
N - 330	HAF	82	102	88
N - 332	-----	84	102	90
N - 339	-----	90	120	101
N - 341	-----	67	112	90
N - 347	HAF-HS	90	124	100
N - 351	-----	67	120	97
N - 356	-----	93	150	122
N - 358	SPF	84	150	112
N - 363	-----	66	68	67
N - 375	-----	90	114	97
N - 440	-----	50	60	---
N - 472	XCF	270	178	114
N - 539	FEF-LS	42	109	84
N - 542	-----	44	67	---
N - 550	FEF	43	121	88
N - 568	FEF-HS	45	132	---
N - 601	-----	35	84	---
N - 642	GPF-LS	---	---	---
N - 650	GPF-HS	36	125	87
N - 660	GPF	36	91	75
N - 683	-----	30	132	---
N - 741	-----	20	105	---
N - 754	SRF-LS	25	58	---
N - 762	SRF-NS-LM	26	62	57
N - 765	SRF-HS	31	111	86
N - 774	SRF-NS	27	70	62
N - 779	SRF-HS	---	---	---
N - 785	MPF	25	126	---
N - 787	SRF-HM	31	81	74
N - 880	FT	---	---	---
N - 881	-----	---	---	---
N - 907	MT	---	---	---
N - 908	-----	---	---	---
N - 990	MT	---	---	---
N - 991	MT	---	---	---