>>386
https://www.jsr.co.jp/products/assets/pdf/e-sbr.pdf
https://www.jstage.jst.go.jp/article/gomu1944/50/12/50_12_802/_pdf/-char/ja
https://www.juntsu.co.jp/qa/qa0723.php
http://sts.kahaku.go.jp/diversity/document/system/pdf/066.pdf