diff --git a/bom/avx.gen b/bom/avx.gen
index 29ed806..bbbaa68 100644
--- a/bom/avx.gen
+++ b/bom/avx.gen
@@ -10,14 +10,7 @@
     _M=A -> M=NP0
     _M=D -> M=X5R
 
-    _TOL=B -> TOL=0.10pF
-    _TOL=C -> TOL=0.25pF
-    _TOL=D -> TOL=0.5pF
-    _TOL=F -> TOL=1%
-    _TOL=J -> TOL=5%
-    _TOL=K -> TOL=10%
-    _TOL=M -> TOL=20%
-    _TOL=Z -> TOL=80/20%
+    include lib/captol.inc
 
     _V=4 -> V=4V
     _V=6 -> V=6.3V
@@ -31,22 +24,6 @@
     _V=7 -> V=500V
 }
 
-# E12 scale, base multiplier is 10^-12 (pico)
-
-_E12_P=(??)8	-> _E12=${_E12_P:1}0f
-_E12_P=(?)(?)9	-> _E12=$_E12_P:1.${_E12_P:2}p
-_E12_P=(??)0	-> _E12=${_E12_P:1}p
-_E12_P=(??)1	-> _E12=${_E12_P:1}0p
-_E12_P=(?)(?)2	-> _E12=$_E12_P:1.${_E12_P:2}n
-_E12_P=(??)3	-> _E12=${_E12_P:1}n
-_E12_P=(??)4	-> _E12=${_E12_P:1}0n
-_E12_P=(?)(?)5	-> _E12=$_E12_P:1.${_E12_P:2}u
-_E12_P=(??)6	-> _E12=${_E12_P:1}u
-_E12_P=(??)7	-> _E12=${_E12_P:1}0u
-
-# remove trailing zeroes
-
-_E12=(*).0([fpnu]) -> _E12=$_E12:1$_E12:2
-_E12=(*).0	   -> _E12=$_E12:1
+include lib/e12.inc
 
 T=C -> C=${_E12}F !
diff --git a/bom/johanson.gen b/bom/johanson.gen
index 070d987..42c7dc3 100644
--- a/bom/johanson.gen
+++ b/bom/johanson.gen
@@ -50,34 +50,9 @@
     _M=Z -> M=Z5U
     _M=Y -> M=Y5V
 
-    _TOL=A -> TOL=0.05pF
-    _TOL=B -> TOL=0.10pF
-    _TOL=C -> TOL=0.25pF
-    _TOL=D -> TOL=0.5pF
-    _TOL=F -> TOL=1%
-    _TOL=G -> TOL=2%
-    _TOL=J -> TOL=5%
-    _TOL=K -> TOL=10%
-    _TOL=M -> TOL=20%
-    _TOL=Z -> TOL=80/20%
+    include lib/captol.inc
 }
 
-# E12 scale, base multiplier is 10^-12 (pico)
-
-_E12_P=(??)8	-> _E12=${_E12_P:1}0f
-_E12_P=(?)(?)9	-> _E12=$_E12_P:1.${_E12_P:2}p
-_E12_P=(??)0	-> _E12=${_E12_P:1}p
-_E12_P=(??)1	-> _E12=${_E12_P:1}0p
-_E12_P=(?)(?)2	-> _E12=$_E12_P:1.${_E12_P:2}n
-_E12_P=(??)3	-> _E12=${_E12_P:1}n
-_E12_P=(??)4	-> _E12=${_E12_P:1}0n
-_E12_P=(?)(?)5	-> _E12=$_E12_P:1.${_E12_P:2}u
-_E12_P=(??)6	-> _E12=${_E12_P:1}u
-_E12_P=(??)7	-> _E12=${_E12_P:1}0u
-
-# remove trailing zeroes
-
-_E12=(*).0([fpnu]) -> _E12=$_E12:1$_E12:2
-_E12=(*).0	   -> _E12=$_E12:1
+include lib/e12.inc
 
 T=C -> C=${_E12}F !
diff --git a/bom/lib/captol.inc b/bom/lib/captol.inc
new file mode 100644
index 0000000..7bb4406
--- /dev/null
+++ b/bom/lib/captol.inc
@@ -0,0 +1,12 @@
+# Must be indented !!
+
+    _TOL=A -> TOL=0.05pF
+    _TOL=B -> TOL=0.1pF
+    _TOL=C -> TOL=0.25pF
+    _TOL=D -> TOL=0.5pF
+    _TOL=F -> TOL=1%
+    _TOL=G -> TOL=2%
+    _TOL=J -> TOL=5%
+    _TOL=K -> TOL=10%
+    _TOL=M -> TOL=20%
+    _TOL=Z -> TOL=80/20%
diff --git a/bom/lib/e12.inc b/bom/lib/e12.inc
new file mode 100644
index 0000000..02614d7
--- /dev/null
+++ b/bom/lib/e12.inc
@@ -0,0 +1,19 @@
+# E12 scale, base multiplier is 10^-12 (pico)
+
+_E12_P=(??)8	-> _E12=${_E12_P:1}0f
+_E12_P=(?)(?)9	-> _E12=$_E12_P:1.${_E12_P:2}p
+_E12_P=(??)0	-> _E12=${_E12_P:1}p
+_E12_P=(??)1	-> _E12=${_E12_P:1}0p
+_E12_P=(?)(?)2	-> _E12=$_E12_P:1.${_E12_P:2}n
+_E12_P=(??)3	-> _E12=${_E12_P:1}n
+_E12_P=(??)4	-> _E12=${_E12_P:1}0n
+_E12_P=(?)(?)5	-> _E12=$_E12_P:1.${_E12_P:2}u
+_E12_P=(??)6	-> _E12=${_E12_P:1}u
+_E12_P=(??)7	-> _E12=${_E12_P:1}0u
+_E12_P=(?)R(?)	-> _E12=$_E12_P:1.${_E12_P:2}p	# strange
+
+# remove trailing zeroes
+
+_E12=(*).0([fpnu]) -> _E12=$_E12:1$_E12:2
+_E12=(*).0	   -> _E12=$_E12:1
+
diff --git a/bom/murata.gen b/bom/murata.gen
index 840ba53..f847044 100644
--- a/bom/murata.gen
+++ b/bom/murata.gen
@@ -34,34 +34,9 @@ GRM* -> T=C {
     _V=1H -> V=50V
     _V=2A -> V=100V
     
-    _TOL=W -> TOL=0.05pF
-    _TOL=B -> TOL=0.1pF
-    _TOL=C -> TOL=0.25pF
-    _TOL=D -> TOL=0.5pF
-    _TOL=F -> TOL=1%
-    _TOL=G -> TOL=2%
-    _TOL=J -> TOL=5%
-    _TOL=K -> TOL=10%
-    _TOL=M -> TOL=20%
+    include lib/captol.inc
 }
 
-# E12 scale, base multiplier is 10^-12 (pico)
-
-_E12_P=(??)8	-> _E12=${_E12_P:1}0f
-_E12_P=(?)(?)9	-> _E12=$_E12_P:1.${_E12_P:2}p
-_E12_P=(??)0	-> _E12=${_E12_P:1}p
-_E12_P=(??)1	-> _E12=${_E12_P:1}0p
-_E12_P=(?)(?)2	-> _E12=$_E12_P:1.${_E12_P:2}n
-_E12_P=(??)3	-> _E12=${_E12_P:1}n
-_E12_P=(??)4	-> _E12=${_E12_P:1}0n
-_E12_P=(?)(?)5	-> _E12=$_E12_P:1.${_E12_P:2}u
-_E12_P=(??)6	-> _E12=${_E12_P:1}u
-_E12_P=(??)7	-> _E12=${_E12_P:1}0u
-_E12_P=(?)R(?)	-> _E12=$_E12_P:1.${_E12_P:2}p	# strange
-
-# remove trailing zeroes
-
-_E12=(*).0([fpnu]) -> _E12=$_E12:1$_E12:2
-_E12=(*).0	   -> _E12=$_E12:1
+include lib/e12.inc
 
 T=C -> C=${_E12}F !
diff --git a/bom/tdk.gen b/bom/tdk.gen
index 163acb6..9e58338 100644
--- a/bom/tdk.gen
+++ b/bom/tdk.gen
@@ -17,12 +17,7 @@ C* -> T=C {
     _FP=4532 -> FP=1812
     _FP=5750 -> FP=2220
 
-    _TOL=C -> TOL=0.25pF
-    _TOL=D -> TOL=0.5pF
-    _TOL=J -> TOL=5%
-    _TOL=K -> TOL=10%
-    _TOL=M -> TOL=20%
-    _TOL=Z -> TOL=80/20%
+    include lib/captol.inc
 
     _V=0G -> V=4V
     _V=0J -> V=6.3V
@@ -32,23 +27,6 @@ C* -> T=C {
     _V=1H -> V=50V
 }
 
-# E12 scale, base multiplier is 10^-12 (pico)
-
-_E12_P=(??)8	-> _E12=${_E12_P:1}0f
-_E12_P=(?)(?)9	-> _E12=$_E12_P:1.${_E12_P:2}p
-_E12_P=(??)0	-> _E12=${_E12_P:1}p
-_E12_P=(??)1	-> _E12=${_E12_P:1}0p
-_E12_P=(?)(?)2	-> _E12=$_E12_P:1.${_E12_P:2}n
-_E12_P=(??)3	-> _E12=${_E12_P:1}n
-_E12_P=(??)4	-> _E12=${_E12_P:1}0n
-_E12_P=(?)(?)5	-> _E12=$_E12_P:1.${_E12_P:2}u
-_E12_P=(??)6	-> _E12=${_E12_P:1}u
-_E12_P=(??)7	-> _E12=${_E12_P:1}0u
-_E12_P=(?)R(?)	-> _E12=$_E12_P:1.${_E12_P:2}p	# strange
-
-# remove trailing zeroes
-
-_E12=(*).0([fpnu]) -> _E12=$_E12:1$_E12:2
-_E12=(*).0	   -> _E12=$_E12:1
+include lib/e12.inc
 
 T=C -> C=${_E12}F !
diff --git a/bom/yageo.gen b/bom/yageo.gen
index ab171ce..2869861 100644
--- a/bom/yageo.gen
+++ b/bom/yageo.gen
@@ -7,14 +7,7 @@ CC* -> T=C {
     CC(????)(?)?(???)(?)??([0-9][0-9R][0-9]) ->
         FP=$REF:1 _TOL=$REF:2 M=$REF:3 _V=$REF:4 _E12_P=$REF:5
 
-    _TOL=B -> TOL=0.1pF
-    _TOL=C -> TOL=0.25pF
-    _TOL=D -> TOL=0.5pF
-    _TOL=F -> TOL=1%
-    _TOL=G -> TOL=2%
-    _TOL=J -> TOL=5%
-    _TOL=K -> TOL=10%
-    _TOL=M -> TOL=20%
+    include lib/captol.inc
 
     _V=5 -> V=6.3V
     _V=6 -> V=10V
@@ -24,23 +17,6 @@ CC* -> T=C {
     _V=0 -> V=100V
 }
 
-# E12 scale, base multiplier is 10^-12 (pico)
-
-_E12_P=(??)8	-> _E12=${_E12_P:1}0f
-_E12_P=(?)(?)9	-> _E12=$_E12_P:1.${_E12_P:2}p
-_E12_P=(??)0	-> _E12=${_E12_P:1}p
-_E12_P=(??)1	-> _E12=${_E12_P:1}0p
-_E12_P=(?)(?)2	-> _E12=$_E12_P:1.${_E12_P:2}n
-_E12_P=(??)3	-> _E12=${_E12_P:1}n
-_E12_P=(??)4	-> _E12=${_E12_P:1}0n
-_E12_P=(?)(?)5	-> _E12=$_E12_P:1.${_E12_P:2}u
-_E12_P=(??)6	-> _E12=${_E12_P:1}u
-_E12_P=(??)7	-> _E12=${_E12_P:1}0u
-_E12_P=(?)R(?)	-> _E12=$_E12_P:1.${_E12_P:2}p	# strange
-
-# remove trailing zeroes
-
-_E12=(*).0([fpnu]) -> _E12=$_E12:1$_E12:2
-_E12=(*).0	   -> _E12=$_E12:1
+include lib/e12.inc
 
 T=C -> C=${_E12}F !