ADVANTEC TB酸硷测试纸pH Test Papers
品名:TB (Thymol blue)货号:07010020测试范围pH:1.4 ~ 3.0/8.0 ~ 9.6
包装:书型7mm x 70mm(L)20张/册,10册/盒 卷型9mm x 6M或9mm x 5.5M(R)