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Standards crosswalk

Yarn & fabric construction

7 test methods in this group, mapped across the bodies that issue them.

Any body’s number. It lands on the crosswalk that covers it, whichever body issued it.

Every issuing body

Showing 1–7 of 7 Show the whole register

What are ISO, ASTM and AATCC — and what do IDT, MOD and NEQ mean?

Calculators on this site cite 35 further standards that the register does not cover yet. They are being written in order of how many tools need them.

ISO 1144

Textiles — Universal system for designating linear density (tex system)

The tex system itself — the agreed way to state how heavy a length of yarn is, on which every count conversion on this site depends.

  • 6 calculators
  • ASTM, AATCC, BIS, SAC, JIS, EN, DIN not yet checked

ISO 16549

Textiles — Unevenness of textile strands — Capacitance method

How much a yarn or sliver varies in mass along its length, measured by passing it through a capacitor. Reported as CV%, plus counts of thin places, thick…

  • ASTM
  • NEQ
  • 10 calculators
  • AATCC, BIS, SAC, JIS, EN, DIN not yet checked

ISO 2060

Textiles — Yarn from packages — Determination of linear density (mass per unit length) by the skein method

Establishes what count a yarn actually is, by weighing a measured length of it. Nearly every downstream calculation on a mill floor — fabric weight, consumption, cost per…

  • ASTM
  • NEQ
  • 19 calculators
  • AATCC, BIS, SAC, JIS, EN, DIN not yet checked

ISO 2061

Textiles — Determination of twist in yarns — Direct counting method

How many turns per unit length are in a yarn, counted directly by untwisting it.

  • ASTM · CEN
  • NEQ
  • IDT
  • 6 calculators
  • AATCC, BIS, SAC, JIS, EN, DIN not yet checked

ISO 3801

Textiles — Woven fabrics — Determination of mass per unit length and mass per unit area

The GSM number on every fabric specification. Determines fabric mass per unit area by weighing a cut specimen of known size.

  • ASTM
  • NEQ
  • 16 calculators
  • AATCC, BIS, SAC, JIS, EN, DIN not yet checked

ISO 7211-2

Textiles — Woven fabrics — Construction — Methods of analysis — Part 2: Determination of number of threads per unit length

Counting ends and picks per unit length — the construction figure that sits beside GSM on every woven fabric specification.

  • ASTM · CEN
  • NEQ
  • IDT
  • 7 calculators
  • AATCC, BIS, SAC, JIS, EN, DIN not yet checked

ISO 7211-3

Textiles — Woven fabrics — Construction — Methods of analysis — Part 3: Determination of crimp of yarn in fabric

How much longer a yarn is than the fabric it came out of, because it bends over the yarns crossing it. Measured by straightening a removed yarn under…

  • ASTM
  • NEQ
  • 5 calculators
  • AATCC, BIS, SAC, JIS, EN, DIN not yet checked
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