SHEET TOLERACNE

RMA SHEET RUBBER AND DIAPHRAGM

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THICKNESS TOLERANCES
THICKNESS TOLERANCES			TOLERANCES (PLUS OR MINUS)
INCHES		MILLIMETERS	INCHES	MILLIMETERS
FRACTIONS	DECIMALS
Under 1/32	Under 0.031	Under 0.79	± 0.10	± 0.25
1/32 to but not including 1/16	0.031 to 0.062	±0.79 to 1.59	± 0.12	± 0.3
1/16 to but not including 1/8	0.062 to 0.125	0.79 to 1.59	± 0.016	± 0.4
1/8 to but not including 3/16	0.125 to 0.187	3.18 to 4.8	± 0.02	± 0.51
3/16 to but not including 3/8	0.187 to 0.375	4.8 to 9.5	± 0.031	± 0.79
3/8 to but not including 9/16	0.375 to 0.562	9.5 to 14.3	± 0.047	± 1.19
9/16 to but not including 3/4	0.562 to 0.750	14.3 to 19.2	± 0.062	± 1.59
3/4 to but not including 1	0.750 to 1.000	19.2 to 25.4	± 0.094	± 2.38
1 and over	1.000 to over	25.4 to over	± 10%	± 10%

It is recommended that the minimum length of a piece included in a roll be 10 feet or 3 meter, Rolls
may but supplied in more than one piece. Slabs are usually supplied un one piece.

RMA SHEET RUBBER AND DIAPHRAGM

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WIDTH TOLERANCES
NOMINAL WIDTHS		TOLERANCES (PLUS OR MINUS)
INCHES	MILLIMETERS	INCHES	MILLIMETERS
36 and over	915 and over 1	± 1	± 25.4

Note- Material made by the coating process is subject to considerably more restrictive tolerances:
under 0.031"(0.79mm), ±0.003"(0.08mm); 0.031"(0.79mm) and over: ±10%

ISO TOLERANCE ON THICKNESS OF CALENDERED SHEET

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NOMINAL THICKNESS		CLASS ST1 ±	CLASS ST2 ±	CLASS ST3 ±
ABOVE	UP TO AND INCLUDING	CLASS ST1 ±	CLASS ST2 ±	CLASS ST3 ±
INCHES		MILLIMETERS	INCHES	MILLIMETERS
FRACTIONS	DECIMALS
Under 1/32	Under 0.031	Under 0.79	± 0.10	± 0.25
1/32 to but not including 1/16	0.031 to 0.062	0.79 to 1.59	± 0.12	± 0.3
1/16 to but not including 1/8	0.062 to 0.125	0.79 to 1.59	± 0.016	± 0.4
1/8 to but not including 3/16	0.125 to 0.187	3.18 to 4.8	± 0.02	± 0.51
3/16 to but not including 3/8	0.187 to 0.375	4.8 to 9.5	± 0.031	± 0.79
3/8 to but not including 9/16	0.375 to 0.562	9.5 to 14.3	± 0.047	± 1.19
9/16 to but not including 3/4	0.562 to 0.750	14.3 to 19.2	± 0.062	± 1.59

SHEET TOLERANCE