SV3000, SV4000 Saybolt Viscosity Bath
Operation and Instruction Manual
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1. Introduction
The Koehler SV3000 Saybolt Viscosity Bath and SV4000 Saybolt Viscosity Bath with Automatic Timing are the latest design for
determining viscosity using Saybolt viscometer tubes and orifices. The bath operates at temperatures from ambient to 240°C
(464°F). The instrument determines the time required for 60mL of sample to flow through a calibrated orifice under precisely
controlled conditions. Saybolt Universal Seconds (SUS) is the standard measurement for lubricants, insulating oils, and lighter
fuel grades, and Saybolt Furol Seconds (SFS) is used for heavier oils and bitumens. The instrument conforms to the ASTM D88
test method and related test specifications.
This manual provides important information regarding safety, technical reference, installation requirements, operating condition
specifications, user facility resource requirements, and operating instructions for the Saybolt Viscometer Bath. This manual should
also be used in conjunction with applicable published laboratory procedures. Information on these procedures is given in section
1.2.
1.1. Koehler’s Commitment to Our Customers
Providing quality testing instrumentation and technical support services for research and testing laboratories has been our
specialty for almost 100 years. At Koehler, the primary focus of our business is providing you with the full support of your laboratory
testing needs. Our products are backed by our staff of technically knowledgeable, trained specialists who are experienced in both
petroleum products testing and instrument service to better understand your requirements and provide you with the best solutions.
You can depend on Koehler for a full range of accurate and reliable instrumentation as well as support for your laboratory testing
programs. Please do not hesitate to contact us at any time with your inquiries about equipment, tests, or technical support.
Toll Free: 1-800-878-9070 (US only)
Tel: +1 631 589 3800
Fax: +1 631 589 3815
Email: info@koehlerinstrument.com
http://www.koehlerinstrument.com
1.2. Recommended Resources and
Publications
1. American Society for Testing and Materials (ASTM)
100 Barr Harbor Drive
West Conshohocken, Pennsylvania 19428-2959, USA
Tel: +1 610 832 9500
Fax: +1 610 832 9555
http://www.astm.org
email: service@astm.org
ASTM Publication:
• ASTM D88: Standard Test Method for Saybolt Viscosity
• ASTM D244: Standard Test Method for Emulsified
Asphalts
• ASTM E102: Standard Test Method for Saybolt Furol
Viscosity of Bituminous Materials at High
Temperatures
2. American Association of State Highway and
Transportation Officials (AASHTO)
444 North Capitol Street N.W., Suite 249
Washington, DC 20001
Phone: +1 202 624-5800
Fax: +1 202 624-5806
E-mail: info@aashto.org
1.3. Instrument Specifications
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