ASTM D7177/D7177M Standard Specification for Air Channel Evaluation of Polyvinyl Chloride (PVC) Dual Track Seamed Geomembranes
Данный раздел/документ содержится в продуктах:
- Техэксперт: Машиностроительный комплекс
- Картотека зарубежных и международных стандартов
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- Картотека зарубежных и международных стандартов
ASTM International
Standard Specification for Air Channel Evaluation of Polyvinyl Chloride (PVC) Dual Track Seamed Geomembranes
N D7177/D7177M
Annotation
This specification covers a nondestructive evaluation of the strength and continuity of parallel PVC geomembrane seams separated by an unwelded air channel. The unwelded air channel between the two distinct seamed regions is sealed and inflated with air to a predetermined pressure. Long lengths of seam can be evaluated by this specification more quickly than by other common nondestructive test.
This specification can be used as a substitute for destructive testing or used in conjunction with destructive testing.
This specification covers PVC sheet 0.760 mm [0.030 in.] and thicker.
The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Автоматический перевод:
Стандартная спецификация для воздушной оценки канала поливинилхлорида (PVC) двойной след Seamed Geomembranes
Эта спецификация покрывает неразрушающую оценку силы и непрерывность параллельного PVC geomembrane швы, отделенные несварным воздушным каналом. Несварной воздушный канал между отличными двумя казался, что регионы герметизируются и раздуваются с воздухом к предопределенному давлению. Большая длина шва может быть оценена этой спецификацией более быстро, чем другим общим неразрушающим испытанием.
