Buffers and Standards
Buffers and Standards
Hydrogen ion buffers comprising a mixture of a weak acid and its conjugate base or vice-versa and used to stabilize pH; also diluents, washing solutions, and standard-value solutions used for a broad array of scientific calibration purposes.
The buffers used to calibrate pH meters may be certified and/or traceable to the National Institute of Standards and Technology (NIST). These buffers may also be color-coded for easy identification:
- Red: pH 4.0
- Yellow: pH 7.0
- Blue: pH 10.0
Synthetic Sea Water for ASTM 665 / IP 135, Paragon Scientific™
A high quality analytical reagent manufactured and certified compliant for use in ASTM D 665 / IP 135 the Standard Test Method for Rust-Preventing Characteristics of Inhibited Mineral Oil in the Presence of Water.
Saybolt (ASTM D6045, D156) Colour Reference Standard, Paragon Scientific™
Saybolt Colour Reference Standards are for routine calibration of colour measuring instruments and verification of test data. Process industries throughout the world use colorimeters for colour control of products such as edible and industrial oils, fuels, chemicals, pharmaceuticals, paints and coatings.
CCS Viscosity Standard, ASTM D 5293 and SAE Specification J309, Paragon Scientific™
Paragon ISO 17025 / ISO 17034 certified CCS viscosity standards are for the calibration and verification of analytical equipment used in Cold Cranking Simulator (CCS) testing to ASTM D5293 and SAE Specification J300.
CCS Viscosity Standard, ASTM D 5293 and SAE Specification J317, Paragon Scientific™
Paragon ISO 17025 / ISO 17034 certified CCS viscosity standards are for the calibration and verification of analytical equipment used in Cold Cranking Simulator (CCS) testing to ASTM D5293 and SAE Specification J300.
CCS Viscosity Standard, ASTM D 5293 and SAE Specification J316, Paragon Scientific™
Paragon ISO 17025 / ISO 17034 certified CCS viscosity standards are for the calibration and verification of analytical equipment used in Cold Cranking Simulator (CCS) testing to ASTM D5293 and SAE Specification J300.
CCS Viscosity Standard, ASTM D 5293 and SAE Specification J321, Paragon Scientific™
Paragon ISO 17025 / ISO 17034 certified CCS viscosity standards are for the calibration and verification of analytical equipment used in Cold Cranking Simulator (CCS) testing to ASTM D5293 and SAE Specification J300.
Sulfur in Diesel ASTM D 5453; ISO 20846 (Nominal value: 7.2 mg/kg), Paragon Scientific™
Certified Reference Materials for the calibration and verification of laboratory instruments used in testing petroleum and derivative products for Sulphur Content ASTM D5453; ISO 20846
CCS Viscosity Standard, ASTM D 5293 and SAE Specification J307, Paragon Scientific™
Paragon ISO 17025 / ISO 17034 certified CCS viscosity standards are for the calibration and verification of analytical equipment used in Cold Cranking Simulator (CCS) testing to ASTM D5293 and SAE Specification J300.