
diffusion  486-7 
dirt-holding capacity  29. 479 
filtration efficiency  29,468-79, 
499 
gas adsorption-desorption  342. 
461-2,486,490 
glass bead  467-8 
latex sphere  490-1 
membranes  342. 486-93 
mercury intrusion  342,461 
methylene blue staining  477 
multipass  472-3,474-5,479 
particle concentration 
efficiency  478-9 
permeability  455-60 
pore size  461-8 
porometry  490-1 
resilience  484 
rigidity/stiffness  12,483-4 
single-pass  472,473-4,475 
smallest particle retained  18, 
453,454 
solute rejection  342,486. 
491-3 
staining  476-7 
sterilization testing procedure  468 
strength  13,480-1 
synthetic dust weight 
arrestance  477-8,479 
tendency to blind  480 
test dusts and aerosols  155, 156, 
470-2,477,478-9, 493,499 
thickness, compressibility  484 
water integrity  488 
Tetex  66 
TetraTex  350 
texsystem  53 
Texel 
177 
textiles  12, 13, 19,480-81 
tests  457,480-1,483-4,484 
see also 
fabrics; 
specific types of 
textiles 
TFP  60 373 
thermal bonding  83, 88, 95 
thermal moulded polyolefin (TMP) 
cartridges  396-7 
Editorial Index  547 
thermalphaseinversion  334-5 
thermalstability  15 
thermoplastic bonded 
cartridges  396-400 
thermoplastic fibres  81, 82-3 
thermoplastic sintered 
powders  262-3 
thermoplastic spun media  95-102 
thermoporometry  342,486,490 
thickness evaluation  484 
3M  171-4,282,370,376 
through-flow  6,312 
titania membranes  336, 337, 354 
titanium  205,242,270 
titanium dioxide  77, 112 
TMProductsLtd  403 
TomoegawaPaper  133,134 
tower presses  79,104 
track-etching  241,330-3,347, 
357.489 
trade names  15, 37, 38-9 
Tribo  177 
triboelectricmedia  174-7 
Trislot  247,401 
tubes 
ceramic  283 
extruded netting  258 
glass fibre  303-4 
knitted mesh  223 
membranes  314, 315.316-17, 
320,334,348,350-2,357 
sintered metal  271 
welded wedge wire  247 
Tuf-tex  65,90 
Turno Klean  404 
twill weave  62, 67, 67-8, 74, 75, 
206 
twisted yarns  36, 58 
Typelle/Typar  9 7,101,108 
Tyvek  98-102 
U 
ULPA (Ultra Low Penetration Air) 
filters  132,154,155,156,159, 
161. 470.478 
Ultra-CorVII  316