JISA1405-12007Acoustics-Determinationofsoundabsorptioncoefficient-1.pdf

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1、A1405-1：2007(ISO10534-1：1996)まえがきこの規格は，工業標準化法第12条第1項の規定に基づき，財団法人建材試験センター(JTCCM)／財団法人日本規格協会(JSA)から，工業標準原案を具して日本工業規格を制定すべきとの申出があり，日本工業標準調査会の審議を経て，経済産業大臣が制定した日本工業規格である。これによって，JISA1405:1998は廃止され，JISA1405-1及びJISA1405-2に置き換えられる。制定に当たっては，日本工業規格と国際規格との対比，国際規格に一致した日本工業規格の作成及び日本工業規格を基礎にした国際規格原案の提案を容易

2、にするために，ISO10534-1:1996，Acoustics－Determinationofsoundabsorptioncoefficientandimpedanceinimpedancetubes－Part1:Methodusingstandingwaveratioを基礎として用いた。この規格の一部が，特許権，出願公開後の特許出願，実用新案権又は出願公開後の実用新案登録出願に抵触する可能性があることに注意を喚起する。経済産業大臣及び日本工業標準調査会は，このような特許権，出願公開後の特許出願，実用新案権又は出願公開後の実用新案登録出願に係る確認について，責任はもたない

3、。附属書A（規定）予備測定附属書B（規定）試験装置の検証附属書C（規定）試験体の圧力解放終端附属書D（参考）局所作用性の吸音材の統計吸音率αstの算出JISA1405の規格群には，次に示す部編成がある。JISA1405-1第1部：定在波比法JISA1405-2第2部：伝達関数法（1）A1405-1：2007(ISO10534-1：1996)目次ページ序文·················································································································

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7、······························45.1一般的条件··························································································································································45.2公式·······················································