Table 2.

Particle size distribution of the Cuban and Mexican zeolites as determined by the dry sieving method

Particle size	Particle size distribution (%) of the Cuban and Mexican zeolites
(µm)	Cuban (~ 40 µm)	Mexican (as received)	Mexican (< 100 µm)	Mexican (> 150 µm)
Size class	Ba	–	Ba	Ca
< 20	2.2	3.5	9.3	0
20–40	28.9	9.7	25.7	0
40–63	37.0	11.0	29.2	0
63–100	18.6	13.5	35.8	0
100–150	6.9	14.1	0	0
> 150	6.4	48.2	0	100

In accordance with DIN EN 1015-1: 2007-05 (2007)

^aThe size classes B and C of both the zeolites were used for further histamine uptake studies