Iiflethi ezimbini ezibaluleke kakhulu, ezinjengokuqunjelwa ze-blanges kunye neeflethi ezingaboniyo, ziqhele ukusetyenziswa kwiinkqubo zokwenza imibhobho. Imigaqo "b16.5" okanye "B16 5" isetyenziswa ngokufanayo kwaye ibhekisele kumgangatho ofanayo. Nangona kunjalo, i-Asme ye-Asme B16 5 (ANI B16 5) igubungela ubungakanani besiya kwi-intshi ezingama-24. Ngobukhulu obukhulu, i-Asme B16.47 igubungela imilinganiselo yobushushu ye-rati, izixhobo, ubukhulu, ukumakisha kunye nokuvavanywa kwee-NPS ezingama-700, ezingama-400, ezingama-400, ezingama-600 ukuya kwi-600.