Conclusion

In comparison, the French Colombard Chardonnay had less sulphites in it than the Australian Colombard Chardonnay.

The EU law says that the limit of sulphites for white or rose wine is 210mg/L. 

(www.morethanorganic.com/sulphur-in-the-bottle)

This shows that the French wine has less preservatives in it, but both wines are within the EU limit.