Calibration Cotton Standards

In order to eliminate or minimize to the extent possible the uncertainties arising from the status of instrument used, testing atmospheric condition and efficiency of performer, a Certified Reference Material (CRM) / Standard Reference Material (SRM) is used.  In case of cotton, certified reference material is known as calibration cotton.

Main source of calibration cotton needed for calibrating HVIs utilised for the textile testing laboratories in India has been the International Calibration Cotton supplied by the United States Department of Agriculture (USDA). USDA calibration cottons are very costly and involves foreign exchange. That apart it involves time also. Over and above since June 1999, USDA has stopped supply of ICC Mode of calibration cotton. Though other countries have switched over to HVI mode, most of the laboratories in our country and some African countries are following ICC Mode. To alleviate the problems faced by Indian laboratories on account of stoppage of supply of ICC Mode calibration cotton by USDA, Central Institute for Research on Cotton Technology (CIRCOT) has taken upon the responsibility of producing this standard reference material (SRM) needed by the Indian Textile Industry and laboratories. Since 1997, Institute is producing calibration cotton and supplying to mills, research institutes and testing instrument manufacturers’ in India.   It is pertinent to add here that CIRCOT is second institute, first being USDA in the world to prepare Calibration Cottons for textile testing.

Salient Features of CIRCOT Calibration Cottons

  • CIRCOT calibration cottons can be used for both modes ICC mode and HVI mode
  • Calibration cottons are prepared with utmost care and values are assigned in the most scientific way by using internationally accepted procedures.
  • CIRCOT calibration cotton standards possess quality characteristics in conformity with those of USDA Calibration Cottons

ICAR-CIRCOT Calibration Cotton Testing on HVI set consists of 3 samples for ICC and HVI modes. A summary of fibre characteristics is given below for your information.

The net weight of each sample is 200 grams. The cost of one individual sample is Rs 900/- + 5% GST only. Total cost Rs. 945 per sample including GST and delivery charges.
The amount should be paid in advance by crossed Cheque/ demand draft payable in Mumbai drawn in favor of Director, CIRCOT, Mumbai or E- Transfer .The samples will be dispatched by Registered Parcel Post.

Quality Characteristics of CIRCOT Calibration Cottons

A.  High Volume Instrument Set – ICC – Mode

Code 2.5 %  S L (mm) U R (%) Micronaire Value Tenacity (g/tex)** Elongation  (%)
S-5 21.6 47 5.0 16.3 5.1
L-4 26.4 46 3.6 21.2 5.1
EL-4 31.7 44 3.2 25.1 5.8
Tolerances ± 0.5 ± 1.0 ± 0.10 ± 1.5  

**3.2mm gauge length

B. High Volume Instrument Set – HVI – Mode

Code UHML(mm) U I (%) Micronaire Value Tenacity (g/tex)** Elongation  (%)
S-5 21.0 78 5.0 19.9 5.1
L-4 26.7 81 3.6 26.6 5.3
EL-4 31.0 80 3.2 30.0 5.8
Tolerances ± 0.5 ± 1.0 ± 0.10 ± 1.5  

Note: **3.2mm gauge length

ICAR-CIRCOT Calibration Cotton Testing on HVI set consists of 3 samples for ICC and HVI modes.  A summary of fibre characteristics is given below for your information.

The net weight of each sample is 200 grams. The cost of one individual sample is Rs 900/- + 5% GST only. Total cost Rs. 945 per sample including GST and delivery charges.

The amount should be paid in advance by crossed Cheque/ demand draft payable in Mumbai drawn in favor of Director, CIRCOT, Mumbai or E- Transfer .The samples will be dispatched by Registered Parcel Post.

Bank Details:

Institute Name:   CIRCOT-Central Institute for Research on Cotton Technology

Institute Bank Name: State Bank of India

Institute Bank IFSC Code: SBIN0004114

Name of the Branch: Commercial Branch, Dadar

Bank Account no. : 10001710244

E-mail ID: circotaccounts@rediffmail.com (For sending Bank details after transfer of funds)

Name of the Account holder: Director, CIRCOT

GSTIN/UIN  27AAAGC0042B1ZC

State: Maharashtra Code: 27    

For Calibration cotton communication E-Mail: circotcalibcot@rediffmail.com