IS 17214 : 2019 Textile Dyestuffs — Rheum Emodi — Identification
Reaffirmed 2024
1. SCOPE
This standard prescribes test method and identification requirement of dried/aqueous extract of Rheum emodi and Rheum emodi dyed textiles. The detection and identification of synthetic rheum emodi and natural colourant Rheum emodi are conducted using kit method given in Annex A. confirmatory tests can be carried out through thin layer chromatography (TLC) and high performance liquid chromatography (HPLC) by chromatographic techniques as given in Annex B and Annex C as well as by UV-visible spectroscopic technique as given in Annex D. The method for extraction of natural Rheum emodi dye from dyed swatches is given in Annex E.
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 were 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