ASTM Color Scale. ASTM Color as specified in ASTM D is a single number colour scale for grading petroleum products. The scale is defined by. 16 glass. The visual Saybolt and ASTM D Color scales can be used individually or in tandem to rank low and high chroma petroleum-based. ASTM D is a single number, one dimensional, colour scale ranging from a pale straw through to a deep red in sixteen steps ( – units in increments of .

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The following link provides additional information from the instruction manual or original manufacturer’s brochure. Comparator may also be used to quickly determine if a sample falls between two predetermined color limits.

Petroleum Products and Biofuel lab apparatus baths, calorimeters, color measurement, density meters, flash point, hydrogenators, oil testing, penetrometers, surface tension, vapor pressure, viscometers and rheometers, Samples too dark for direct viewing are diluted with kerosine. However, color is not always a reliable guide to product quality and should not be used indiscriminately in product specifications.

Looking for a specific close-up? View the sample from either a standing or sitting position through a prism eyepiece that brings the standards and sample together in a three-field comparison. When the color range of a particular product is known, a variation outside the established range may indicate possible contamination with another product.

Koehler K13200 / K13290 Bench-top Colorimeter

Color discs situated on either side of the sample contain standards conforming to the chromaticity coordinates of ASTM D Request a Free Quote Right Now. Type text as it appears:: The three section field-of-view optical system allows a sample and two reference standard colour filters to be viewed simultaneously, allowing easy comparison of colour. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.


The colour filters are mounted in two discs, one with full value standards and the other with intermediate value standards, giving improved discrimination over single disc comparators. Lab Equipment for Sale: Email Us or call toll-free: Replacement white inserts are available to ensure correct lighting levels are preserved.

Rotate the discs by turning dials on the front of the comparator until the sample color matches the color standards and take the reading directly from the dials. Color corrected filtered halogen light source corresponding to Illuminant C of the CIE system provides clear visibility, assuring accurate readings. ICS Number Code Right-click to open the PDF in a new window or download it: Copyright Stanhope—Seta Limited Enter product namemake or model.

Supplied with a Certificate of Colour Conformity. Link to Active This link will always route to the current Active version of the standard. Supplied with; 2 x filter discs 3 x sample containers Power ashm unit Instruction manual. Koehler K Ashm Colorimeter. What are your specifications?

Work Item s – proposed revisions of this standard. Historical Version s – view previous versions of standard Work Item s – proposed revisions of this standard Translated Version s: A detachable prism light shield may be inserted to eliminate any outside light interference. See detailed specifications Available accessories Request a quotation More products in this subcategory. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.


The discs and sample are illuminated by a tungsten quartz halogen light source colour corrected to CIE standard illuminant C.

ASTM D – 07 Standard Test Method for ASTM Color of Petroleum Products (ASTM Color Scale)

Two-disc ast, offers a distinct advantage over single-disc systems – the sample is always bracketed between the next lower and higher color standards allowing the viewer to easily determine the actual sample color. What is your application? In some cases, the color may serve as an indication of the degree of refinement of the material. Available request a quote. Samples which are not clear such as petroleum waxes are pre-heated above their cloud point.

Historical Version s – view previous versions of standard. Methods of test for petroleum and its products.

General Use laboratory apparatus s1500, baths, blenders, centrifuges, chart recorders, freezers, fume hoods, furnaces, glassware washers, glove boxes, mixers, moisture testing, ovens, pumps, shakers, vacuum equipment, water purification The Seta-Lovibond Colour Comparator is used for visual determination of the colour of oils and petroleum waxes. Pharmaceutical laboratory apparatus stability chambers, tablet disintegration, tablet dissolution, tablet hardness, V-blenders, What are your requirements.

Determination of colour ASTM scale.

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