JCSS: Japan Calibration Service System

Nippon Grease's Standard Liquids for Calibrating Viscometers

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It is essential to calibrate viscometers with using viscosity standards for accurate measurements of viscosity. Nippon Grease's SLCV(Standard Liquids for Calibrating Viscometers) assures the traceability to the National Measurement Standards.
It is the sole reference standards for Calibrating Viscometers which comply with JIS(Japanese Industrial Standards). Nippon Grease Co. has been a JCSS(Japan Calibration Service System) accredited laboratory (scope: viscosity) since 2012.

Traceability chart of the viscosity

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JCSS calibration laboratory accreditation system

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Under the JCSS calibration laboratory accreditation system, Nippon Grease's calibration laboratory is assessed and accredited as Accredited Calibration Laboratories to meet the requirements of the Measurement Law, relevant regulations, and ISO/IEC 17025.
IA Japan(International Accreditation Japan) and NITE(National Institute of Technology and Evaluation) play as the accreditation body of JCSS and conducts accreditation process with the system conforming to ISO/IEC 17011 and relevant international criteria.
The correct traceable measurements based on the standards between companies/countries provide assurance in regards to the characteristic values of the materials, and provides the guarantee of the product quality.

Specification

Grade Kinetic Viscosity mm2/s Viscosity mPa/s Unopened Liquid Annual Change Rate
in Kinetic Viscosity
Content Package Attachment
Reference
Value
Approximate Value Approximate Value
20 ℃ 25 ℃ 30 ℃ 40 ℃ 20 ℃ 25 ℃ 30 ℃ 40 ℃ JIS Allowable Limits Example of Actual Measure Value
JS2.5 2.5 - 2.1 1.8 2 - 1.6 1.4 Within
+/- 0.2%
0.06% Narrow-mouthed
Glass Bottle
Narrow-mouthed
Glass Bottle
Calibration
Certificate
JS5 5 - 3.9 3.2 4.1 - 3.2 2.5 0.03%
JS10 10 - 7.4 5.7 8.4 - 6.1 4.6 0.04%
JS20 20 - 14 10 17 - 11 8.2 0.05%
JS50 50 - 32 21 43 - 27 18 0.01%
JS100 100 - 59 38 86 - 51 32 0.03%
JS200 200 - 110 66 170 - 95 56 0.01%
JS500 500 - 260 150 440 - 230 130 Within
+/- 0.4%
0.07%
JS1000 1000 - 500 270 890 - 430 230 0.06%
JS2000 2000 - 940 480 1800 - 820 420 0.05%
JS14000 14000 - 5500 2400 12000 - 4800 2100 Within
+/- 1.0%
0.08% Wide-mouthed
Glass Bottle
JS52000 52000 - 20000 8500 46000 - 18000 7500 0.08%
JS160000 160000 100000 - - 140000 90000 - - 0.07%

"JIS Z 8809 SLCV" should be handled properly accordingly to the following conditions:

  • The containers shall be tightly closed and kept at room temperature avoiding heat and/or light.
  • Once the standard liquids are used, it shall not be put back into the original container.
  • Reusing the standard liquids must be avoided, and once the container is opened, the standard liquids should be used as soon as possible./li>
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Product content may differ from the actual image due to minor specification changes etc.

If the revision of product standards and packaging standards has been made, there is a case where the actual product specifications and images are different.

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