IS 17432 : 2020 Textile Dyestuffs-Natural Dye from Tectona grandis ( Teak, Sagaun ) Leaves-Identification
New Standard from Last Update.
1 SCOPE
This standard prescribes test methods and identification requirements of powder / aqueous extract of Tectona grandis (Sagaun) leaf dye, and of textiles coloured with this dye. The detection and identification of the natural colourant from Tectona grandis leaves is conducted using chromatographic techniques, that is, Thin Layer Chromatography (TLC) and High Performance Liquid Chromatography (HPLC) as given in Annex A and B and by UV-Visible spectroscopic technique as given in Annex C. The method for extraction of the dye from textile dyed with Tectona grandis leaf extracts is given in Annex D.
2 REFERENCES
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated was valid. All standards are subject to revision and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below.
1070: 1992 Reagent grade water - Specification (third revision)