IS 18797 : 2024 Packaged Sewage Treatment Plant - Specification
| ICS 13.060.30; 93.030 | CED 24 |
1 SCOPE
1.1 This standard covers the requirements of materials, design, structural strength, performance and inspection and testing for compliance of packaged sewage treatment plant (PSTP) made using glass fibre reinforced plastic (GFRP), polyethylene (PE), poly propylene (PP) or dicyclopentadiene (DCPD). On-site sanitation systems, like the PSTP, are alternatives to centralized sewerage systems where the latter is infeasible or unavailable in both urban and rural areas.
1.2 The PSTP units are designed to serve a population equivalent to minimum 5 people for complete treatment of sewage on-site and are suitable for underground installation at standard temperature and pressure conditions.
1.3 The PSTP system is designed to treat raw sewage using a natural biological process without any biological additives such as enzymes, effective microorganisms or any equivalent substances.
1.4 This standard does not cover on-site assembled PSTP. It only covers PSTP that are assembled off-site by a single manufacturer and tested as a complete and fully functional unit.
2 REFERENCES
The standards listed in Annex A 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 edition of these standards.
| IS No. | Title |
| IS 3025 (all parts) | Methods of sampling and test (physical and chemical) for water and wastewater |
| IS 4905 : 2015/ISO 24153 : 2009 | Random sampling and randomization procedures (first revision) |
| IS 4954 : 1968 | Recommendations for noise abatement in town planning |
| IS 13360 | Plastics - Methods of testing: |
| (Part 5) | Mechanical properties, |
| (Sec 1) : 2021/ISO 527-1 : 2019 | Determination of tensile properties - General requirements (second revision) |
| (Sec 7) : 2022/ISO 178 : 2019 | Determination of flexural properties (second revision) |
| (Part 6/Sec 3) : 2022/ISO 75-1 : 2020 | Thermal properties, Section 3 Determination of temperature of deflection under load - General test method (third revision) |
| IS 14856 : 2000 | Glass fibre reinforced plastic (GRP) panel type door shutters for internal use - Specification |
| IS 18666 : 2024 | Rotationally moulded polyethylene septic tanks - Specification |
| SP 7 : 2016 | National building code of India |