The EUROPEAN STANDARD EN 573-3

Aluminium and aluminium alloys - Chemical composition and
form of wrought products - Part 3: Chemical composition and
form of products

is the base for the most common wrought alluminium alloys used in many different sectors. This European Standard for reference materials nearly match other standards eg. from the AA. So EN AW 1070 has the same composition then the AA1070. So you might check for the same number and check if the values defined in the standards are the same as shown at the top of this spreadsheet.

The EUROPEAN STANDARD EN 1706

Aluminium and aluminium alloys – Castings
Chemical composition and mechanical properties

is the base for the most common cast alluminium alloys used in many different sectors. This European Standard for reference materials nearly match other standards eg. from the AA. So you might check for the same number and check if the values defined in the standards are the same as shown at the top of this spreadsheet.