The chemicals listed in this catalogue are indicative of our most often-requested items; however, we welcome inquiries on any unlisted chemicals, custom solutions and formulations, unit sizes, and packaging materials (i.e. glass/plastic). Please contact your ProSource Customer Sales Representative to discuss any special needs you may have.

Product quality is ProSource Scientific’s number one priority. Strict quality control standards are maintained to ensure the quality of our products is never compromised. The chemical grades appearing in this catalogue are defined as follows:

ACS Reagent	Chemicals which meet or exceed the requirements of the American Chemical Society as listed in the latest edition “Reagent Chemicals, American Chemical Society Specifications”.
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Reagent	High purity chemicals for which there are no official standards. Purity specifications are reported directly on the label for most items. Suitable for use in many analytical and general laboratory applications.
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Lab Grade	Chemicals which generally meet or exceed the specifications listed in the latest edition of “United States Pharmacopeia/National Formulary (USP/NF)”.
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HPLC Grade	Solvents which are distilled in glass and filtered. Suitable for use in High Performance Liquid Chromatography.
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Electronic Grade	Solvents and acids used for special applications. They conform to SEMI specifications.
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Glass Distilled	Solvents of high purity which are distilled in glass and generally intended for use in pesticide residue analysis.
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Spectrograde	Solvents which are suitable for use in spectrophotometry. These generally meet or exceed the requirements of the American Chemical Society as listed in the latest edition of “Reagent Chemicals, American Chemical Society Specifications”.
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Purified/Practical	Chemicals of good quality where there are no official standards but which are of sufficiently high purity to be suitable for many uses.
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Technical	Commercial grade chemicals which are clean and of reasonable chemical purity. These are generally intended for industrial use but also find use in some laboratory applications.
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Volumetric Solution	Prepared from reagent grade chemicals and standardized against NIST primary standards.