13.-1616. Total volatile solids - ( TVS ).

Watsan matters
13.-1615. Total suspended solids - ( TSS ).
13.-1614. Total solids - ( TS ).
13.-1613. Total sanitation campaign.
13.-1612. Total residual chlorine.
13.-1611. Total phosphorus.
13.-1610. Total nitrogen.
13.-1609. Total Kjeldahl nitrogen - ( TKN ).
13.-1608. Total dissolved solid - ( TDS ).
13.-1607. Total coliform.
13.-1606. Topsoil.
13.-1605. Topography.
13.-1604. Tools to ensure sustainability.
13.-1603. Toilet.
13.-1602. Toilet linked biogas plant.
13.-1601. Time-of-use rates - ( TOU ).
13.-1600. Thickening ponds.
13.-1599. Thermophilic digestion.
13.-1598. Thermophilic composting.
13.-1597. Thermophile.
13.-1596. Thermoelectric power water use.
13.-1595. Thermo-tolerant coliforms - ( TTC ).
13.-1594. Thermal power plant.
13.-1593. Thermal pollution.
13.-1592. Texture - ( rock texture ).
13.-1591. Tertiary.
13.-1590. Tertiary wastewater treatment.
13.-1589. Tertiary treatment.
13.-1588. Tertiary filtration.
13.-1587. Tertiary filtration and disinfection.