301.2 - Cement and Coal Fly Ash Fineness

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

SRM 114q is intended for calibrating the Blaine fineness meter according to the latest issue of ASTM C204, to calibrate the Wagner turbidimeter according to ASTM C115, to determine sieve residue according to ASTM C430, and to verify procedure for particle size distribution by a laser diffraction method (no-standard method available). Each set consists of 20 sealed vials, each containing approximately 5g of cement.

For further information see SP 260-161 , SP 260-166 , and SP 260-169.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and uncertainties, the certificate is the only official source.

- Certified values are normal font
- Non-certified or reference values are italicized
- Non-certified values in parentheses are for information only

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	SRM	Description	Unit of Issue		Properties	Value
	46h Now Selling	Portland Cement Fineness Standard	10 vials x 5 g		Sieve Residue (45 µm residue) (No. 325) Specific Surface area (Blaine)	7.43 % 364.4 m2/kg
	114q Out of Stock	Portland Cement Fineness Standard	20 vials		Residue on 45 µm (No. 325) sieve Specific Surface area (Wagner turbidimeter) Specific Surface area (Blaine Air Permeability Apparatus) Particle Size Distribution	0.79 % 2183 cm2 g-1 3818 cm2 g-1 1-128 µm
	2689 Now Selling	Coal Fly Ash	3 x 10 g		Sieve Residue (45 µm residue) (No. 325)	12.8 %
	2690 Now Selling	Coal Fly Ash	3 x 10 g		Sieve Residue (45 µm residue) (No. 325)	8.0 %
	2691 Now Selling	Coal Fly Ash	3 x 10 g		Sieve Residue (45 µm residue) (No. 325)	10.5 %