Standards

This standard specifies the method for evaluation of the biological efficacy of mosquito coils by the use of glass chamber method. This method provides a satisfactory means of determining the relative efficacy of mosquito coils.

This standard specifies the requirements and the methods of sampling and test for lacquer. 

This standard specifies methods of sampling and test for thinners and solvents for paints.  It covers the methods for determination of colour, relative density, distillation range, residue on evaporation, tests for corrosive sulphur, freedom from chlorinated hydrocarbon solvents and benzene, kauri butanol value, aniline point and mixed aniline point, acid wash test, test for hydrogen sulphide and mercaptans, freedom from lead, flash point and keeping quality.

This standard specifies the conditions under which ready-mixed concrete shall be made and delivered, and the methods by which the purchaser can specify with his enquiry or order, the properties of the concrete required.  It provides a specification for the production and supply of ready-mixed concrete. Methods of specifying ready-mixed concrete for nominal mixes, specified strength mixes and mixes for special purposes, to meet the requirements of standard codes of practice, are covered.  It also gives guidance on the data to be provided by the purchaser when ordering ready-mixed concrete, the inspection facilities to be provided by the supplier and the appropriate tests.  Routine tests which must be carried out by the supplier and those which are the responsibilities of the purchaser are also included.  This standard does not cover the placing, compaction, curing or protection of the concrete after delivery, nor does it apply to materials for lean concrete or similar road care materials.

This standard applies to the construction, installation, operation, inspection, and maintenance of jacks; power operated cranes, monorails and crane run-ways; power operated and manually operated derricks and hoists; lifting devices, hooks and slings; and cableways.  This standard does not apply to track and automotive jacks, railway or automobile wrecking cranes, shipboard cranes, shipboard cargo – handling equipment, well-drilling derricks, ship hoists, mines hoists, truck body hoists, car or barge pullers, conveyors, excavating equipment, nor to equipment coming within the scope of the following American National Standards Committee: A10, A17, A90, A92, A120, B20, B56 and B77.

This standard prescribes methods of sampling and testing for Biochemical Oxygen Demand five days (BOD₅) in water and wastewater.  It shall be read in conjunction with the latest version of GYS 207 “Interim guidelines for industrial effluent discharge into the environment.”

 This standard prescribes methods of sampling and testing for solids in water and wastewater.

This standard prescribes methods of sampling and testing for, dissolved oxygen in water and wastewater.  It shall be read in conjunction with latest edition of GYS 207, “Interim guidelines for industrial effluent discharge into the environment.

This standard prescribes methods of sampling and testing for nitrogen in water and wastewater. This standard shall be read in conjunction with GYS 207:2002, “Interim guidelines for industrial effluent discharge into the environment”.