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All Specpure® Sulfur in Residual Oil standards are manufactured from the highest quality raw materials available. These standards are made up on a weight/weight basis using balances which are routinely calibrated using NIST-traceable weights. All Alfa Aesar standards are accompanied by a Certificate of Analysis which states the actual concentration and the traceability to NIST. They are guaranteed to be stable for one year from the ship date, provided they are kept tightly capped and stored under normal laboratory conditions.

  • Sulfur in Residual Oil standard solution, Specpure®, 10,000µg/g (1.00%)
  • Sulfur in Residual Oil standard solution, Specpure®, 20,000µg/g (2.00%)
  • Sulfur in Residual Oil standard solution, Specpure®, 30,000µg/g (3.00%)
  • Sulfur in Residual Oil standard solution, Specpure®, 3500µg/g (0.35%)
  • Sulfur in Residual Oil standard solution, Specpure®, 40,000µg/g (4.00%)
  • Sulfur in Residual Oil standard solution, Specpure®, 7000µg/g (0.70%)

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