NIST

STANDARD SAMPLE ; MATERIAL: STEEL; PRESENTATION: DISC; DIMENSIONS: 32MM ADDITIONAL FEATURE: P 0.008 S 0.017 TI 0.04 ;COMMERCIAL REFERENCE#: NIST 1286 ; NOTE: 3232

STANDARD SAMPLE ; MATERIAL: STEEL; PRESENTATION: LIIMALHA ; PACKAGING:# 150 G BOTTLE; FEATURE ADDITIONAL: C 0.222 ; COMMERCIAL REFERENCE#: NIST – 293 ; NOTE: 3232

BASE STANDARD SAMPLE: SAE 4340 ALLOY STEEL; SHAPE: BLOCK; DIMENSIONS: 10.00 X 10.00 X 55.00 MM; PACKAGING: BOX WITH 5 UNITS; MANUFACTURER / ERM REFERENCE: FA415T (150 J)

STANDARD SAMPLE- NIST SRM 1218 LOW ALLOY STEEL FOR SPECTROMAX MACHINE

BASIC NAME STANDARD NAME MODIFIER MATERIAL ANALYSIS COKE CONTENT C=89.15 % PRESENTATION AS OF SUPPLY 50 G BOTTLE ADDITIONAL REQUIREMENTS SEE NOTE COMMERCIAL REFERENCE NIST-2776 NOTE: – VOLATILE MATERIALS 0.98 +/- 0.15 %; – ASH 8.06 +/- 0.08%; – TOTAL SULFUR 0.825 +/- 0.016%; – CARBON 89.15 +/- 1.65%; – HYDROGEN 0.26 +/- 0.04%; –

BASIC NAME STANDARD NAME MODIFIER MATERIAL ANALYSIS COKE CONTENT C=91.34 % PRESENTATION AS OF SUPPLY 50 G BOTTLE ADDITIONAL REQUIREMENTS SEE NOTE COMMERCIAL REFERENCE NIST-2775 NOTE: – VOLATILE MATERIALS 1.31 +/- 0.20 %; – ASH 5.77 +/- 0.05%; – TOTAL SULFUR 0.5816 +/- 0.0051 %; – CARBON 91.34 +/- 0.49%; – HYDROGEN 0.41 +/- 0.06%;

REFERENCE MATERIAL; LIMESTONE; SAMPLE TYPE: PO; MATRIX: LIMESTONE; COMPOSITION: SODIUM OXIDE 0.0109PCT MAGNESIUM OXIDE 0.301PCT ALUMINUM OXIDE 0.526PCT SILICON DIOXIDE 4.08PCT PENTOXIDE PHOSPHORUS 0.0413P CERTIFICATE: W/CERTIFICATE; SUPPLY: 70G BOTTLE; REFERENCE/MANUFACTURER: SRM 1D/NIST;