in \printResultTable: "print-zero-exponent=true" only for the first 3 columns

kalibrierschein.cls

@@ -285,16 +285,33 @@ footskip=0bp,
 
 \RequirePackage{siunitx-PTB}
 
+\newcounter{ks@colNum} 
+\newcounter{ks@colMax} 
+
+\newcommand*\ks@siTabColSet{%
+  \ifnum\c@ks@colNum < 3 % nur für erste 3 Spalten 0-Exponent verwenden
+    \sisetup{print-zero-exponent = true}%
+  \else
+    \sisetup{print-zero-exponent = false}%
+  \fi
+  \stepcounter{ks@colNum}%
+  \ifnum\c@ks@colNum = \c@ks@colMax
+    \setcounter{ks@colNum}{0}%
+  \fi
+}
+
+\newcolumntype{R}{>{\ks@siTabColSet}r}% rechtsbündig mit untersch. 0-Exponent
+
 \newcommand\resultTable[3][]{%
   %\begingroup
-  \@tempcntb=#2 %
+  \c@ks@colMax=#2 %
   \edef\@tempa{\noexpand\begin{longtable}{%
-    @{\noexpand\extracolsep{\fill}}*\the\@tempcntb r
+    @{\noexpand\extracolsep{\fill}}*\the\c@ks@colMax R
   }}%
   \expandafter\ks@add\expandafter{\@tempa}%
   \ks@add{\toprule}%
   \ifx\relax#1\relax\else
-    \edef\@tempa{\noexpand\multicolumn{\the\@tempcntb}{@{}c@{}}{#1}%
+    \edef\@tempa{\noexpand\multicolumn{\the\c@ks@colMax}{@{}c@{}}{#1}%
       \noexpand\\\noexpand\toprule}%
     \expandafter\ks@add\expandafter{\@tempa}%
     %\showthe\ks@tab