Cement Turbidity and Fineness


SRM 46h is only to determine sieve residue according to ASTM C430. Each set consists of 10 sealed vials, each containing approxi- mately 5g of cement.


SRM114q is for calibrating the Blaine finenessmeter according to the latest issue of ASTMC204, to calibrate theWagner turbidimeter accord- ing to ASTMC115, to determine sieve residue according to ASTMC430, and to verify procedure for particle size distribution by a laser diffrac- tionmethod (no-standardmethod available). Each set consists of 20 sealed vials, each containing approximately 5g of cement


SRM Description Properties Certified 114q Portland Cement Residue on 45 µm (No. 325) sieve


Specific Surface Area (Wagner Turbidimeter)


Value 0.79 %


2183 cm2


Specific Surface Area (Blaine Air Permeability 3818 cm2 Apparatus) Particle Size Distribution


46h Portland Cement Sieve Residue (45 µm residue) (No. 325) Fineness Standard


1-128 µm 7.43 %


g -1 g -1


10  5 g


Unit Size set (20)


Specific Surface Area (SSA) of Powders (Brunauer, Emmett, and Teller Method) SRM Description


1897 Specific Surface Area Standard 1899 Specific Surface Area Standard 1900 Specific Surface Area Standard 2696 Silica Fume


Surface Area (m2


258.32 10.52 2.85


(22.92)* *The surface area for 2696 was calculated from a combination of single-point, and multi-point calibrations. /g) Multi-point Calculated Single Point


253.08 10.67 2.79


Unit Size (g)


7 4 4


70


Mercury Porosimetry Standards SRM Description


1917 Mercury Porosimetry Standard (Alumina Beads) 1918 Mercury Porosimetry Standard (Extruded Silica-Alumina)


Unit Size (g) 10


12


2


WWW.NIST.GOV/SRM  PHONE: (301) 975-2200  FAX: (301) 948-3730  EMAIL: SRMINFO@NIST.GOV


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