Standards
Specification for poly (vinyl chloride)(PVC) plastic pipe, schedules 40, 80 and 120
This specification covers poly (vinyl
chloride) (PVC) pipe made in Schedule 40, 80, and 120 sizes and pressure-rated
for water (see Appendix X1). Included are criteria for classifying PVC
plastic pipe materials and PVC plastic pipe, a system of nomenclature for PVC
plastic pipe, and requirements and test methods for materials, workmanship,
dimensions, sustained pressure, burst pressure, flattening, and extrusion
quality. Methods of marking are also given.
The products covered by this specification are intended for use with the distribution of pressurized liquids only, which are chemically compatible with the piping materials. Due to inherent hazards associated with testing components and systems with compressed air or other compressed gases, some manufacturers do not allow pneumatic testing of their products. Consult with specific product/component manufacturers for their specific testing procedures prior to pneumatic testing.
GYS 99
-
2021
GYD 5,500
19 pages
General requirements for the operation of a laboratory
This standard specifies requirements for the operation of laboratories and is applicable to all laboratories regardless of the number of personnel or the extent of the scope of testing activities.
This standard is for use by laboratories in developing their quality, administrative and technical systems that govern their operations. Any party may use this standard when confirming or recognising the competence of laboratories.
GYS 170
-
2021
GYD 7,200
32 pages
Specification for Rotationally moulded polyethylene water storage tanks
This standard covers flat-bottomed water storage tanks of circular cross-section manufactured from unreinforced polyethylene by the process of rotational moulding. Included are requirements for physical characteristics, dimensions, materials performance, testing marking and labelling.
This standard covers flat-bottomed water storage tanks of circular cross-section manufactured from unreinforced polyethylene by the process of rotational moulding. Included are requirements for physical characteristics, dimensions, materials performance, testing marking and labelling.
These specifications apply to tanks intended for:
(a) The storage of potable water at normal atmospheric pressure;
(b) Installation and use at environmental or service temperatures such that the material of tank remains between 15 °C and 80°C; and
(c) Vertical, above- ground installation on fixed, flat, fully- supporting bases.
GYS 588
-
2023
GYD 6,100
27 pages