Here are some supplemental notes for Dutch ordnance, re Doomed Battalions: 

The KL had 14 artillery regiments of fairly modern guns (numbered 1 to
12, plus the coast and horse artillery regiments, but the 9th to 12th
regiments were incomplete comprising only a single battalion of 105mm
guns), plus another 11 reserve regiments (numbered 13 to 23) using
various older guns.

Note #23 81mm Brandt MTR 5/40 RF1.1 -386 in service, with a company of 6
tubes in each infantry regiment, but often deployed in sections of 2
mortars per battalion.  Each hussar regiment had one mortar section.
Called M28 in Dutch use.  For KNIL, 2/42-3/42 RF1.4.

Note #27 65mm INF 5/40 RF1.3 -represents the Krupp 6.5cm M99 gun; "6
Veld" in Dutch use. 192 in service with one 4 four gun battery per
regiment.  Usually horse-drawn, there were also 5 independent batteries
of guns modified for motorized towing.

Note #10 75mm ART 5/40 RF1.2 -represents three modernized versions of
the Krupp M02 gun, all called the "7 Veld".  One version was modified
for motorized towing and equipped the 2 battalions of the motorized
horse artillery regiment.  310 in service. Heavier artillery would
usually be represented by OBA, but a few batteries found themselves so
close to the action they served as field pieces.

Note #28 80mm ART 5/40 RF1.4 -represents the Krupp 8.4cm M81 "8 Staal",
equipping 4 reserve artillery regiments.

Note #31 105mm ART 5/40 RF1.5 -represents the Bofors M27 "10 Veld" gun, which used
motorized towing.  One battalion attached to each of the 4 corps. Most modern Dutch gun, used
by Germans for coastal defence as the 10.5cm K335(h). 

Note #12 105mm ART 2/42-3/42 RF1.4 -represents Bofors M32 field
howitzer. Used only by KNIL equipping 8 batteries on Java.  Could be
mounted on a wheel base plate for 360  FOF.

Note #32 120mm ART 5/40 RF1.3 -represents the Bofors M14 "12 L 14"
howitzer. Standard Dutch heavy howitzer was the Krupp M18 "15 L 17"
(Chinese Note #14, 5/40 RF 1.2), which with the 120mm 12 L 14 equipped
the third battalions of the eight regular artillery regiments, the first
two battalions using the 7 Veld.  There were also two battalions of
British 6" howitzers, called "15 L 15" in Dutch use (British Note #17,
5/40 RF1.6) in the reserve artillery. Belgians also used it as the
Obusier de 6", 5/40 RF1.5)