ACS Grade: Materials conforming with the specifications and procedures outlined in the American Chemical Society Specifications, 9th Edition, 2000.
Analytical Grade: Designates reagents suitable for use in analytical procedures.
Biotechnology Grade: Materials equivalent to Ultra Pure, but particularly suitable for use in Molecular Biology applications. Tested for specific contaminants such as nucleases and bacterial (?) where appropriate.
Certified/Certifiable Grade: Materials, typically dyes and stains, that meet the requirements of the Biological Stain Commission. Certified reagents have been tested and validated by the Biological Stain Commission.
Electrophoresis Grade: Material specially for Electrophoretic applications
High Purity Grade: Materials of superior quality where there are no published standards.
Reagent Grade: High Purity materials which meet the specifications noted in BBI’s catalog.
Technical Grade: Designates materials of selected commercial or industrial quality.
Ultra Pure Grade: Material with a purity level exceeding the various monograph grades.
USP Grade: Materials conforming with the specifications and procedures outlined in the United States Pharmacopeia, 26th Edition, 2003
1 inch =25.4 millimetres 1 foot =12 inches =0.3048 metre 1 yard =3 feet =0.9144 metre 1 (statute) mile =1760 yards =1.609 kilometres 1 nautical mile =1852 m
1 millimetre =0.03937 inch 1 centimetre =10 mm. =0.3937 inch 1 decimetre =10 cm. =3.937 inches 1 metre =10 dm. =1.0936 yards =3.2808 feet 1 decametre =10 m. =10.936 yards 1 hectometre =100 m. =109.4 yards 1 kilometre =1000 m. =0.6214 mile 1 mile marin =1852 m. =1.1500 mile