$105.36

Organic Carbon Standard, 200 ppm C - R1846200-250C

$124.40

Organic Carbon Standard, 200 ppm C - R1846200-500C

$56.38

Organic Carbon Standard, 5000 ppm C - R1849500-500C

$113.36

Organic Carbon Standard, 300 ppm C - R1846300-500C

$169.19

Organic Carbon Standard, 500 ppm C - 1846.5-16

$91.34

Inorganic Carbon Standard, 25 ppm C - R1845025-500C

$115.76

Organic Carbon Standard, 100 ppm C with HCl - R1849250-500C