Atlas Fibre Sheet Tolerances

Sheet Tolerances

At least 90 percent of the area of the sheet shall be within the tolerances given in the following table. At no point shall the thickness vary from the nominal by a value greater than 125 percent of this specified tolerance.

Tolerances in Thickness, Inches
All tolerances ą unless noted otherwise

Nominal Thickness, Inches Grades
X, XP. XPC, XX, XXP, XXX, XXXP, XXXPC, FR-1, FR-2, FR-3 Grades
ES-1, ES-2, ES-3, CE Grade C Grade L Grade LE Grade AA Grades
G-3, G-5, G-7, G-9, G-10, G-11, FR-4, FR-5, CEM-1, CEM-3 Grade N-1

0.010 0.002 ... ... 0.003 ... ... 0.002 0.003

0.015 0.0025 ... ... 0.0035 0.0035 ... 0.003 0.0035

0.020 0.003 ... ... 0.004 0.004 ... 0.004 0.004

0.025 0.0035 0.005 ... 0.0045 0.0045 ... 0.005 0.0045

0.031 0.0035 0.0065 0.0065 0.005 0.005 ... 0.0065 0.0065

0.047 0.0045 0.0075 0.0075 0.0055 0.0055 ... 0.0075 0.0075

0.062 0.005 0.0075 0.0075 0.006 0.006 0.018 0.0075 0.0075

0.094 0.007 0.009 0.009 0.007 0.007 0.018 0.009 0.009

0.125 0.008 0.010 0.010 0.008 0.008 0.020 0.012 0.010

0.156 0.009 0.011 0.011 0.009 0.009 ... 0.015 0.011

0.188 0.010 0.0125 0.0125 0.010 0.010 0.024 0.019 0.0125

0.219 0.011 0.014 0.014 0.011 0.011 ... 0.021 0.014

0.250 0.012 0.015 +0.030 +0.024 0.012 0.028 0.022 0.015

0.312 0.014 0.017 +0.035 +0.029 0.045 0.034 0.026 0.024

0.375 0.017 0.020 +0.040 +0.034 0.017 0.038 0.030 0.032

0.438 0.019 0.022 +0.044 +0.038 0.019 0.044 0.033 0.040

0.500 0.021 0.024 +0.048 +0.042 0.021 0.048 0.036 0.048

0.625 0.024 0.027 +0.053 +0.048 0.024 0.058 0.040 0.054

0.750 0.027 0.029 +0.058 +0.054 0.027 0.068 0.043 0.058

0.375 0.030 0.031 +0.062 +0.060 0.030 0.076 0.046 0.062

1.000 0.033 0.033 +0.065 +0.065 0.033 0.086 0.049 0.066

1.125 0.035 0.035 +0.069 +0.069 0.035 ... 0.053 ...

1.250 0.037 0.037 +0.073 +0.073 0.037 0.106 0.055 ...

1.375 0.039 0.039 +0.077 +0.077 0.039 ... 0.058 ...

1.500 0.041 0.041 +0.081 +0.081 0.041 0.124 0.061 ...

1.625 0.043 0.043 +0.085 +0.085 0.043 ... 0.064 ...

1.750 0.045 0.045 +0.089 +0.089 0.045 0.144 0.062 ...

1.875 0.047 0.047 +0.093 +0.093 0.047 ... 0.070 ...

2.000 0.049 0.049 +0.097 +0.097 0.049 0.160 0.073 ...

2.125 0.052 ... +0.105 +0.105 ... ... 0.079 ...

2.500 0.056 ... +0.113 +0.113 ... ... 0.085 ...

2.750 0.061 ... +0.121 +0.121 ... ... 0.091 ...

3.000 0.065 ... +0.130 +0.130 ... ... 0.097 ...

3.500 0.073 ... +0.146 +0.146 ... ... 0.110 ...

4.000 0.082 ... +0.163 +0.163 ... ... 0.122 ...

4.500 0.090 ... +0.179 +0.179 ... ... 0.134 ...

5.000 0.095 ... +0.190 +0.190 ... ... 0.142 ...

Nominal Thickness, Inches	Grades X, XP. XPC, XX, XXP, XXX, XXXP, XXXPC, FR-1, FR-2, FR-3	Grades ES-1, ES-2, ES-3, CE	Grade C	Grade L	Grade LE	Grade AA	Grades G-3, G-5, G-7, G-9, G-10, G-11, FR-4, FR-5, CEM-1, CEM-3	Grade N-1
0.010	0.002	...	...	0.003	...	...	0.002	0.003
0.015	0.0025	...	...	0.0035	0.0035	...	0.003	0.0035
0.020	0.003	...	...	0.004	0.004	...	0.004	0.004
0.025	0.0035	0.005	...	0.0045	0.0045	...	0.005	0.0045
0.031	0.0035	0.0065	0.0065	0.005	0.005	...	0.0065	0.0065
0.047	0.0045	0.0075	0.0075	0.0055	0.0055	...	0.0075	0.0075
0.062	0.005	0.0075	0.0075	0.006	0.006	0.018	0.0075	0.0075
0.094	0.007	0.009	0.009	0.007	0.007	0.018	0.009	0.009
0.125	0.008	0.010	0.010	0.008	0.008	0.020	0.012	0.010
0.156	0.009	0.011	0.011	0.009	0.009	...	0.015	0.011
0.188	0.010	0.0125	0.0125	0.010	0.010	0.024	0.019	0.0125
0.219	0.011	0.014	0.014	0.011	0.011	...	0.021	0.014
0.250	0.012	0.015	+0.030	+0.024	0.012	0.028	0.022	0.015
0.312	0.014	0.017	+0.035	+0.029	0.045	0.034	0.026	0.024
0.375	0.017	0.020	+0.040	+0.034	0.017	0.038	0.030	0.032
0.438	0.019	0.022	+0.044	+0.038	0.019	0.044	0.033	0.040
0.500	0.021	0.024	+0.048	+0.042	0.021	0.048	0.036	0.048
0.625	0.024	0.027	+0.053	+0.048	0.024	0.058	0.040	0.054
0.750	0.027	0.029	+0.058	+0.054	0.027	0.068	0.043	0.058
0.375	0.030	0.031	+0.062	+0.060	0.030	0.076	0.046	0.062
1.000	0.033	0.033	+0.065	+0.065	0.033	0.086	0.049	0.066
1.125	0.035	0.035	+0.069	+0.069	0.035	...	0.053	...
1.250	0.037	0.037	+0.073	+0.073	0.037	0.106	0.055	...
1.375	0.039	0.039	+0.077	+0.077	0.039	...	0.058	...
1.500	0.041	0.041	+0.081	+0.081	0.041	0.124	0.061	...
1.625	0.043	0.043	+0.085	+0.085	0.043	...	0.064	...
1.750	0.045	0.045	+0.089	+0.089	0.045	0.144	0.062	...
1.875	0.047	0.047	+0.093	+0.093	0.047	...	0.070	...
2.000	0.049	0.049	+0.097	+0.097	0.049	0.160	0.073	...
2.125	0.052	...	+0.105	+0.105	...	...	0.079	...
2.500	0.056	...	+0.113	+0.113	...	...	0.085	...
2.750	0.061	...	+0.121	+0.121	...	...	0.091	...
3.000	0.065	...	+0.130	+0.130	...	...	0.097	...
3.500	0.073	...	+0.146	+0.146	...	...	0.110	...
4.000	0.082	...	+0.163	+0.163	...	...	0.122	...
4.500	0.090	...	+0.179	+0.179	...	...	0.134	...
5.000	0.095	...	+0.190	+0.190	...	...	0.142	...

ATLAS FIBRE COMPANY
1-800-323-1408
(In Illinois: 1-847-674-1234)
FAX: 1-847-674-1723
E-mail: info@atlasfibre.com