Hydrogen N4.5 (Zero Grade H2) Cylinder

Before using Hydrogen N4.5 in any new process or experiment, a thorough material
compatibility and safety study should be carried out. Ensure adequate air ventilation.
Ensure all national/local regulations are observed. Ensure equipment is adequately
earthed. Whilst proper care has been taken in the preparation of this document, no
liability for injury or damage resulting from its use can be accepted. Note: When the
Product Name appears in the SDS header the decimal sign and its position comply
with rules for the structure and drafting of international standards, and is a comma
on the line. As an example 2,000 is two (to three decimal places) and not two
thousand, whilst 1.000 is one thousand and not one (to three decimal places).

National Regulations For Hydrogen N4.5

Dangerous Substances and Explosive Atmospheres Regulations (DSEAR 2002 No. 2776). Management of Health and Safety at
Work Regulations (1999 No. 3242). The Regulatory Reform (Fire Safety) Order 2005 (2005 No. 1541). Control of Substances
Hazardous to Health Regulations (COSHH, 2002 No. 2677). Provision and Use of Work Equipment Regulations (PUWER, 1998
No. 2306). Personal Protective Equipment Regulations (1992 No. 2966). Control of Major Accident Hazards Regulations
(COMAH, 2015 No. 483). Pressure Systems Safety Regulations (PSSR, 2000 No. 128). Only products that comply with the food
regulations (EC) No. 1333/2008 and (EU) No. 231/2012 and are labelled as such may be used as food additives. This Safety
Data Sheet has been produced to comply with Regulation (EU) 2015/830.

Pure gases are classified by grade.

The first digit of the grade classification indicates the ‘number of nines’ purity, e.g. N3.0 = 99.9% purity.

The second digit is the number following the last nine, e.g. N4.6 helium has a guaranteed minimum purity level of 99.996%.

Hydrogen N4.5 Additional identification

Avoid transport on vehicles where the load space is not separated from
the driver’s compartment. Ensure vehicle driver is aware of the potential
hazards of the load and knows what to do in the event of an accident or
an emergency. Before transporting product containers, ensure that they
are firmly secured. Ensure that the container valve is closed and not
leaking. Container valve guards or caps should be in place. Ensure
adequate air ventilation.

Product identifier

Product name: Hydrogen, compressed
Trade name: Hydrogen High Purity, Hydrogen CP Grade N5.0, Hydrogen Research Grade
N5.5, Hydrogen Zero Grade N4.5
Additional identification
Chemical name: Hydrogen
Chemical formula: H2
INDEX No. 001-001-00-9
CAS-No. 1333-74-0
EC No. 215-605-7
REACH Registration No. Listed in Annex IV/V of Regulation (EC) No. 1907/2006 (REACH),
exempted from registration

Chemical name Hydrogen
INDEX No.: 001-001-00-9
CAS-No.: 1333-74-0
EC No.: 215-605-7
REACH Registration No.: Listed in Annex IV/V of Regulation (EC) No. 1907/2006 (REACH), exempted from
registration.
Purity: 100%
The purity of the substance in this section is used for classification only, and does
not represent the actual purity of the substance as supplied, for which other
documentation should be consulted.
Trade name: Hydrogen High Purity, Hydrogen CP Grade N5.0, Hydrogen Research Grade N5.5,
Hydrogen Zero Grade N4.5