diff --git a/kalibrierschein/kalibrierschein.cls b/kalibrierschein/kalibrierschein.cls
index 071aef91a1d5458d43175badf9cc727c32b15478..be3c26479a595d9d6c737f73349f646dccc37bf8 100644
--- a/kalibrierschein/kalibrierschein.cls
+++ b/kalibrierschein/kalibrierschein.cls
@@ -220,7 +220,7 @@
   \ks@tab\expandafter{\the\ks@tab#1}%
 }
 
-\newcommand*\ks@addTabLine[1]{%
+\newcommand*\ks@addTabLine[1]{% TODO: analog zu \ks@addCommaItems
   \def\@tempc{}%
   \@for\@tempa:=#1\do{%
     \edef\@tempb{\the\ks@tab\@tempc\@tempa}%
@@ -229,13 +229,26 @@
   }%
 }
 
+\newcommand*\ks@addCommaItems[1]{%
+  \def\@tempc{}%  
+  \@for\@tempa:=#1\do{%
+    \edef\@tempb{\noexpand\ks@tab\noexpand\expandafter{%
+      \the\noexpand\ks@tab\@tempc\@tempa}}%
+    %\show\@tempb
+    \@tempb
+    \def\@tempc{\noexpand\\}%
+    %\showthe\ks@tab
+  }%
+}
+
 \newcommand*\ks@getColSpec[2]{%
   \let#2=\@empty
   \@for\@tempa:=#1\do{%
-    \edef#2{#2l}%
+    \edef#2{#2X}%
   }%
-  \ifx\ks@colSpec\@empty
-    \def#2{l}%
+  \ifx#2\@empty
+    %\def#2{l}%
+    \def#2{X}%
   \fi
 }
 
@@ -248,11 +261,14 @@
   \ks@add{\tabularnewline[#2]}%
   \ks@addTabLine{\ks@type}%
   \ks@add{\tabularnewline[#3]}%
-  \ks@addTabLine{\ks@serialNo}%
+  %%%\ks@addTabLine{\ks@serialNo}%
+  %%\ks@add{\ks@serialNo}%
+  \ks@addCommaItems{\ks@serialNo}%
   \ks@add{\end{tabularx}}%
   \begingroup
     \tabcolsep=1em %
     \origTabularx
+    %\showthe\ks@tab
     \the\ks@tab
   \endgroup
 }