Revised Standard from Last Update.

1. SCOPE

This standard prescribes the requirements and the methods of sampling and test for stabilized liquid sulphur trioxide, used as sulphonating agent in chemical industry.

2. REFERENCES

The standards given below contain provisions which through reference in this text, constitute provisions of this Indian 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 these standards:

IS 1070 : 2023 Reagent grade water - Specification (fourth revision)

IS 3025 (Part 2) : 2019/ISO 11885 : 2007 Methods of sampling and test (physical and chemical) for water and wastewater: Part 2 Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICPOES) (first revision)

IS 4905 : 2015/ISO 24153 : 2009 Random sampling and randomization procedures (first revision)

IS 5165 : 2017 Laboratory glassware - Interchangeable conical ground joints (first revision)

IS 6052 : 1988 Specification for glass condensers (first revision)