Precision Glass Capillary Viscomters ASTM D446 and ISO 3105 Standard Specifications and Operating Instructions for Glass Capillary Kinematic Viscometer BS/U/M Miniature Viscometer For Transparent Liquids Similar to BS/U-Tube above, but requires much smaller sample volumes.Bath depth required: 9” RAMIN’ offers the complete set of D848 Acid Wash Color Standard Solutions and bottles for accurate comparisons of color between samples and standards.