Hydrogen Gas Specifications - SpecAir Specialty Gases UN1049

HYDROGEN Specifications
SA Purity Total impurities < 100 ppb Scientific Grade - Min. Purity 99.9999% O2 <0.5 ppm N2 <0.5 ppm H2O <0.5 ppm CO + CO2 <0.1 ppm THC <0.1 ppm Ultra High Purity - Min. Purity 99.999% O2 <1 ppm H2O <2 ppm THC <0.5 ppm N2 <5 ppm Zero Grade - Min. Purity 99.995% THC <0.5 ppm Prepurified Grade - Min. Purity 99.99% O2 <5 ppm H2O <10 ppm High Pressure (3500, 6000 psi) Min. Purity 99.99%
HYDROGEN GAS INFORMATION
SYMBOL	H2
MOLECULAR WEIGHT	2.016
SPECIFIC VOLUME	191.30 CF / lb
FLAMMABILITY LIMITS	4.0-75% in Air
PURITY	Contact Customer Service
CGA VALVE	350
Material Safety Data Sheet	Hydrogen MSDS

HYDROGEN SHIPPING INFORMATION
DOT PROPER SHIPPING NAME	Hydrogen, compressed
IATA PROPER SHIPPING NAME
HAZARD CLASS	2.1
ID NUMBER	UN1049
LABELS	* F
CAS NUMBER	1333-74-0
SCHEDULE B NUMBER	2804.10.0000
ZONE	N/A

* N = Non-Flammable Gas * F = Flammable Gas * P = Poison-Inhalation Hazard	* O = Oxidizer * C = Corrosive
This information is intended for reference purposes only.

Hydrogen Mixture Specifications

Hydrogen (H2)
Concentration	Cylinder Size	CGA Connection	Recommended Equipment
In Air 5 ppm - 2.0% Primary*, Certified	300 200 150AL 80AL 33AL	590 590 590 590 590	Single Stage Regulator: HPS 500 Two-Stage Regulator: HPT 500
	Enviro-Cyl/ One-Timers	180/C-10	CGA 180: LB150 C-10: PR 160 or PR 190

In Argon 5 ppm - 49.9% Primary*, Certified	300 200 150AL 80AL 33AL	350 350 350 350 350	Single Stage Regulator: HPS 500 Two-Stage Regulator: HPT 500
	Enviro-Cyl/ One-Timers	180/C-10	CGA 180: LB150 C-10: PR 160 or PR 190

In Helium 5 ppm - 49.9% Primary*, Certified	300 200 150AL 80AL 33AL	350 350 350 350 350	Single Stage Regulator: HPS 500 Two-Stage Regulator: HPT 500
	Enviro-Cyl/ One-Timers	180/C-10	CGA 180: LB150 C-10: PR 160 or PR 190

In Nitrogen 5 ppm - 49.9% Primary*, Certified	300 200 150AL 80AL 33AL	350 350 350 350 350	Single Stage Regulator: HPS 500 Two-Stage Regulator: HPT 500
	Enviro-Cyl/ One-Timers	180/C-10	CGA 180: LB150 C-10: PR 160 or PR 190
*Primary analysis available for concentrations 10 ppm or higher
Technical Data
Cylinder Pressure: DOT Class: H2 <4% H2 >4% DOT Label: H2 <4% H2 >4% ID No.: H2 <4% H2 >4%		2000 PSIG 2.2 2.1 Nonflammable Gas Flammable Gas UN1956 UN1954

HYDROGEN Specifications