Standards

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 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”.

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

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

 This standard specified method of sampling and testing for oil and grease 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 lead (PH) in water and wastewater. This standards shall be read in conjunction with GYS 207: 2002 " Interim guidelines for industrial effluent discharge into the environment".

This standard prescribes methods of sampling and testing for Zinc (Zn) 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.