Standards

This standard describes the properties of mercury the nature of hazards associated with it and essential information on its storage, handling packing , labelling disposal of waste and personal preventive measures.

This standard sets out guidelines parameters which will be used to monitor the effluent quality for different types of industries operating in Guyana.  This standard does not apply to industrial operations of mining, forestry operations and agricultural infiltration, seepage and run-off.  This standard is expected to operate under the Environmental Protection Agency (EPA) regulations on Water Quality Management

This specification covers hollow and solid (see 5.3 and 5.4) concrete masonry units made from hydraulic cement, water, and mineral aggregates with or without the inclusion of other materials. There are three classes of concrete masonry units: Normal Weight, Medium Weight, and Lightweight. These units are suitable for both load bearing and non-load bearing applications. This standard covers hollow blocks from sizes of 3in. (76.2mm) to 8 in. (203.2mm).

Concrete masonry units covered by this specification are made from lightweight or normal weight aggregates, or both.

This standard specifies performance requirements for hollow load-bearing concrete masonry units made from Portland cement, water and mineral aggregates with or without the inclusion of other materials. It covers three weight classifications of the concrete masonry units: (a) normal weight; (b) medium weight; and (c) lightweight.

This standard specifies requirements for hollow non-load-bearing concrete masonry units made from portland cement, water and mineral aggregates with or without the inclusion of other materials. It covers three weight classifications of the concrete masonry units: (a) Normal weight; (b) Medium weight; and (c) Light weight. It also covers the sampling and testing of hollow non-load-bearing concrete masonry units for compressive strength, absorption, weight, moisture content and dimensions. It does not cover blocks intended solely for decorative purposes.

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 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”.