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No. Products CAS No. Specifications
Price
优惠价 预计发货期
NIST-SRM2640a Carbon Monoxide in Nitrogen (Nominal Amount-of-Substance Fraction 2 % mol/mol)
cylinder 48,624 请询价 3-4周
NIST-SRM2641a Carbon Monoxide in Nitrogen (Nominal Amount-of-Substance Fraction 4 % mol/mol)
cylinder 55,680 请询价 3-4周
NIST-SRM2642a Carbon Monoxide in Nitrogen (Nominal Amount-of-Substance Fraction 8 % mol/mol)
cylinder 82,320 请询价 3-4周
NIST-SRM2644a Propane in Nitrogen (Nominal Amount-of-Substance Fraction 250 μmol/mol)
cylinder 39,728 请询价 3-4周
NIST-SRM2646a Propane in Nitrogen (Nominal Amount-of-Substance Fraction 1000 μmol/mol)
cylinder 42,320 请询价 3-4周
NIST-SRM2647a Propane in Nitrogen (Nominal Amount-of-Substance Fraction 2500 μmol/mol)
cylinder 40,016 请询价 3-4周
NIST-SRM2657a Oxygen in Nitrogen (Nominal Amount-of-Substance Fraction 2 % mol/mol)
cylinder 52,608 请询价 3-4周
NIST-SRM2658a Oxygen in Nitrogen (Nominal Amount-of-Substance Fraction 10 % mol/mol)
cylinder 54,016 请询价 3-4周
NIST-SRM2659a Oxygen in Nitrogen (Nominal Amount-of-Substance Fraction 21 % mol/mol)
cylinder 48,192 请询价 3-4周
NIST-SRM2668 Toxic Elements in Frozen Human Urine
Set (10) (5 each conc) 13,824 请询价 3-4周
NIST-SRM2669 Arsenic Species in Frozen Human Urine
Set (10) (5 each conc.) 9,984 请询价 3-4周
NIST-SRM2670a Toxic Elements in Urine (Freeze-Dried)
set (4) (2 each conc) 15,968 请询价 3-4周
NIST-SRM2681 Trace Constituent Elements in Blank Filters
set (10) 7,680 请询价 3-4周
NIST-SRM2682c Subbituminous Coal (Nominal Mass Fraction 0.5 % Sulfur)
1 bottle x 50 g 8,144 请询价 3-4周
NIST-SRM2683c Bituminous Coal (Sulfur, Mercury, and Chlorine)
50 g 6,304 请询价 3-4周
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