ESD SAFE CLEANROOM CHAIR/STOOL SPECIFICATION

A) CHAIR CONFIGURATION

ESD safe vinyl upholstery
Chrome plated gaslight pump
Chrome plated gaslift mechanism c/w cast aluminium socket
Chrome plated seat-backrest adjoining piece (for chairs only)
Polished one-piece cast aluminium base, 5-prong
Choice of ESD safe non-marking black polyamide castors, conductive chrome castors or conductive non-marking black rubber glides
Built-in class 100 hepa filters on backrest and below the seat (for class 100 cleanroom models only)
Stainless steel bolts, nuts, washers & screws
Adjustable height chrome plated footring (for high chairs/stools only)

B) UPHOLSTERY MATERIAL SPECS

Material : cleanroom compatible static-dissipative vinyl fabric with buried conductive layer
and permanent ESD safe property

Colour : royal blue

i) Electrical Properties

Resistance R_TT - Surface,	Top-To-Top (EOS/ESD S4)
	@ 10V, 12%RH (R_TT) : 10E6 – 10E7 Ohms
	@ 100V, 50%RH (R_TT) : 10E6 – 10E7 Ohms
Resistance R_TG - Surface,	Top-To-Groundable Point (EOS/ESD S4)
	@ 10V, 12%RH (R_TG) : 10E6 – 10E7 Ohms
	@ 100V, 50%RH (R_TG) : 10E6 – 10E7 Ohms

ii) Physical Properties

Grab Tensile (Fed. Test Std. 19 Lb, Method 5100)	: 100 – 150 lbs
Tear (Fed. Test Std. 19 Lb, Method 5134 – Tongue)	: 15 –20 lbs
Flame Resistance – Horizontal Burn Test (Motor Vehicle Safety Standard 302)	: PASS
Hydrostatic Burst Test – Mullen (Fed. Test Std. 191, Method 5512)	: 105 psi
Weight	: 19 oz/sq yd

C) BUILT-UP CHAIR ESD SPECS

Resistance-To-Ground (EOS/ESD-S4.1) : 10E6 – 10E7 Ohms
(From upholstered surface of chair to groundable point)

METHOD OF TESTING :

Use surface resistance test kit with 2 five-pound probes
Place one probe on seat/backrest of chair with the other probe on a metal plate placed below one of the 5 castors/glides
Select mode for 100v on the test kitand press button until reading appears as per kit’s instruction

ESD Chair Test Method