ANSI Z358.1

Iwu OSHA gbasara akụrụngwa mberede bụ
na-edochaghị anya, n'ihi na ọ naghị akọwa ihe mejupụtara
"ụlọ kwesịrị ekwesị" maka ịsa anya ma ọ bụ ahụ.N'ime
iji nyekwuo ntuziaka maka ndị ọrụ,
American National Standards Institute (ANSI) nwere
guzobe ọkọlọtọ na-ekpuchi anya ihe mberede
na akụrụngwa ịsa ahụ.Ọkọlọtọ a—ANSI Z358.1—
bu n'obi ka ọ bụrụ ntuziaka maka ihe kwesịrị ekwesị
imewe, asambodo, arụmọrụ, echichi, ojiji
na mmezi nke ngwa mberede.Dị ka
ntụzịaka zuru oke maka ịsa mmiri mberede na
anya, ọtụtụ gọọmentị nakweere ya
ụlọ ọrụ ahụike na nchekwa n'ime na n'èzí
US, yana International Plumb Code Code.Nke
ọkọlọtọ bụ akụkụ nke koodu ụlọ na ebe nke
anabatala Usoro Plumbing International.
(IPC-Sek. 411)
A nabatara ANSI Z358.1 na 1981. Ọ bụ ya
edegharịrị na 1990, 1998, 2004, 2009, na ọzọ na 2014.
Ndepụta nnabata nnabata a na-achịkọta yana eserese
na-enye ndokwa nke 2014 version nke
ọkọlọtọ.