1.1 This specification covers disposable glass blood sample capillary tubes for use in microhematocrit procedures. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are includ This specification describes the physical requirements and corresponding test methods for disposable glass blood sample capillary tubes for use in microhematocrit procedures. Covered here are two different types of capillary tubes, namely, Type I (coat