--- a/www/js/global.js	Wed Sep 26 11:45:10 2018 +0200
+++ b/www/js/global.js	Wed Sep 26 15:28:59 2018 +0200
@@ -151,4 +151,11 @@
 }
 
 
+/*
+ * Steinie:
+ *
+ *
+ * HCO3 = CaCo3 x 1,22
+ * 1°F = 10mg/L CaCo3
+ */