diff --git a/cif_pow.dic b/cif_pow.dic
index a128ab0..6dbc32f 100644
--- a/cif_pow.dic
+++ b/cif_pow.dic
@@ -10149,6 +10149,22 @@ save_PD_PREP
     _name.category_id             PD_GROUP
     _name.object_id               PD_PREP
     _category_key.name            '_pd_prep.id'
+    _description_example.case
+;
+         _pd_prep.char_id       'Acme anatase 1234'
+         _pd_prep.id           'rutile 1234'
+         _pd_prep.conditions
+      ;
+         1 kg of anatase from Acme, Lot#1234 was placed in several
+         platinum crucible in a furnace at atmospheric pressure.
+         The furnace was heated at 5 K/min to 1100 K, and held there
+         overnight. The furnace was then switched off and allowed to
+         cool naturally. The batch was combined, homogenised, and
+         riffle-split into 50 g packets.
+      ;
+         _pd_prep.pressure      101.3
+         _pd_prep.temperature  1100
+;
 
 save_
 
@@ -13078,7 +13094,7 @@ save_
        disparate loop; they cannot be assigned values independently.
 
        Added examples to PD_CALC_OVERALL, PD_CALIB_INCIDENT_INTENSITY, PD_CHAR,
-       _pd_diffractogram.id, PD_PEAK, PD_PHASE_MASS, PD_PROC_LS,
+       _pd_diffractogram.id, PD_PEAK, PD_PHASE_MASSS, PD_PREP, PD_PROC_LS,
        PD_QPA_CALIB_FACTOR, PD_SPEC.
 
        PD_CALIB_WAVELENGTH removed. _diffrn_radiation_wavelength.phase_id