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Quality Control Data

The fabric used as Energy Test Cloth is specified in the U.S. Federal Register. We have been supplying the official Energy Test Cloth since lot 18. We check the quality of the material we ship constantly and have the fabric externally analized before any samples are sent out for the official approval testing (i.e. approval and establishment of correction coefficients, see below). The list and links below give you access to our batch specific QC data and quality certificates:

  • DOE_Specifications+Certificate_lot18.pdf (pdf 156 kB)
  • DOE_Specifications+Certificate_lot19.pdf (pdf 296 kB)
  • DOE_Specifications+Certificate_lot20.pdf (pdf 185 kB)
  • DOE_Specifications+Certificate_lot21.pdf (pdf 230 kB)
  • DOE_Specifications+Certificate_lot22.pdf (pdf 147 kB)

Correction coefficients

The Correction Coefficients for different DOE Energy Test Cloth lots can be found on the official DOE server, or mirrored here on the WFK server (including latest updates): For your convenience we make calibration data and correction coefficients available here for you to download.

  • Look-up Table for Spin Between 50 to 100g (Excel 18 KB)
  • Test Cloth Data for Lots 5 & 6 (Excel 43 KB)
  • Lot 7 Correction Coefficients Using 50 and 100g (Excel 20 KB)
  • Lot 7 Correction Coefficients Using 50, 200 and 350g (Excel 23 KB)
  • Lot 7 Correction Coefficients Using 100, 200, and 350g (Excel 23 KB)
  • Lot 8 Correction Coefficients Using 50 and 100g (Excel 22 KB)
  • Lot 8 Correction Coefficients Using 50, 200, and 350g (Excel 23 KB)
  • Lot 8 Correction Coefficients Using 100 200, and 350g (Excel 23 KB)
  • Lot 9 Correction Coefficients Using 50, 200, 350g (Excel 23 KB)
  • Lot 9 Correction Coefficients Using 100, 200, 350g (Excel 23 KB)
  • Lot 10 Comparisons (Excel 10 KB)
  • Lot 10 Correction Coefficients Using 50, 200, 350g (Excel 23 KB)
  • Lot 10 Correction Coefficients Using 100, 200, 350g (Excel 30 KB)
  • Lot 11 Correction Coefficients Using 100, 200, 350g (Excel 33 KB)
  • Lot 12 Correction Coefficients Using 100, 200, 350g (Excel 36 KB)
  • Lot 13 Correction Coefficients Using 100, 200, 350g (Excel 34 KB)
  • Lot 14 Correction Coefficients Using 50, 200, 350g (Excel 24 KB)
  • Lot 14 Correction Coefficients Using 100, 200, 350g (Excel 38 KB)
  • Lot 15 Correction Coefficients Using 100, 200, 350g (Excel 75 KB)
  • Lot 16 Correction Coefficients Using 100, 200, 350g (Excel 91 KB)
  • Lot 17 Correction Coefficients Using 100, 200, 350, 500g (Excel 126 KB)
  • Lot 18 Correction Coefficients Using 100, 200, 350, 500, 650g (Excel 92 KB)
  • Lot 19 Correction Coefficients Using 100, 200, 350, 500, 650g (Excel 246 KB)
  • Lot 20 Correction Coefficients Using 100, 200, 350, 500, 650g (Excel 46 KB)
  • Lot 21 Correction Coefficients Using 100, 200, 350, 500, 650g (Excel 97 KB) (unofficial)
  • Lot 22 Correction Coefficients Using 100, 200, 350, 500, 650g (Excel 68 KB) (unofficial)