Template:Infobox uranium isotopes/sandbox
| heading =Testpage rootlevel template
| 1=new metatemplate {{tlt|Infobox isotopes (meta)}}. Not fit for mainspace transclusion. Current template: {{tl|Infobox uranium isotopes}}; {{tl|Infobox uranium isotopes/sandbox}}
}}
{{Infobox isotopes (meta)
|symbol=U
|ref-table =Uref table test
|ref-nubase2020 =yes
|isotopes=
{{Isotopes/main/isotope |mn=101 |sym=Uu
|na=0.5% |hl={{val|2.455|e=5|u=y}}
|dm1=SF |perc1= |pn1= |ps1= }}
{{Isotopes/main/isotope |mn=102 |sym=Uu
|na=0.5% |hl={{val|2.455|e=5|u=y}}
|dm1= |perc1=100 |pn1=102 |ps1=Au
|dm2= |perc2= |pn2= |ps2= }}
{{Isotopes/main/isotope |mn=103 |sym=Uu
|na=0.5% |hl={{val|2.455|e=5|u=y}}
|dm1=_link alpha |perc1=100 |pn1=103 |ps1=Au
}}
{{Isotopes/main/isotope |mn=104 |sym=Xx
|na=|hl=stable
}}
{{Isotopes/main/isotope |mn=105 |sym=Xx
|na=synth _link |hl=stable _link
|dm2=beta |perc2=99 |pn2=123 |ps2=Zz
}}
{{Isotopes/main/isotope |mn=109 |sym=Xx
|na=sunth _link |hl=stable _link
|dm1= |perc1= |pn1= |ps1=
}}
|footnote =
|child ={{{child|no}}}
}}