[ AS 4564 ]

There’s an Australian Standard for natural gas quality, once it’s processed for use, in homes, power stations, and industry. 

That Standard is AS4564 (not to be confused with AS4645, the distribution network standard).  The “General purpose natural gas” Standard gives certainty of quality, so that it’s a consistent and reliable fuel. 

I know you’re all wondering, so I’ll answer the question:  at this stage, no, it doesn’t specifically recognise hydrogen in the fuel mix.

Australian Standards are updated regularly and when they need to be.  Once the knowledge around hydrogen is certain enough to write into Standards, the committee will.