5.1x00a0;This practice provides a means by which samples of geosynthetics may be selected to provide a statistically valid sample for the selection of test specimens without previous knowledge of the variability that may exist between production units.
5.2x00a0;The principles stated in Practice D4271, and the illustrative text in that practice can be used by test method authors in preparing sampling statements.
5.3x00a0;This practice gives three procedures for sampling: one for manufacturerx0027;s quality control (MQC), one for manufacturerx0027;s quality assurance (MQA) testing, and a third for purchaserx0027;s specification conformance testing. For this reason, test methods containing a section on sampling that requires the use of this practice should contain a statement in the section on reporting similar to the following:x201c; Report which procedure from Practice D4354 was used for sampling: Procedure A for Manufacturerx0027;s Quality Control (MQC), Procedure B for Manufacturerx0027;s Quality Assurance (MQA) Testing, or Procedure C for Purchaserx0027;s Specification Conformance Testing.
5.4x00a0;Manufacturerx0027;s Quality Assurance is done internally to ensure the manufacturer of the MQC program. When it is required to provide certification to a purchaser as to quality assurance, the MQA testing is to be done by an external MQA testing facility.
1.1x00a0;This practice covers three procedures for the sampling of geosynthetics and rolled erosion control products (RECPs) for testing. This practice requires that instructions on taking laboratory samples and test specimens be part of every test method for geosynthetics.
1.1.1x00a0;The first procedure describes the sampling of production units for the purpose of manufacturerx0027;s quality control (MQC) (Table 1).
TABLE 1 Number of Units to be Selected as Lot Samplex2014;Manufacturersx2019; Quality ControlNumber of Units in Lot
Number of Units Selected
x00a0;1 to 2x00a0;
1
x00a0;3 to 8x00a0;
2
x00a0;9 to 27
3
ASTM D4354-2012由美国材料与试验协会 US-ASTM 发布于 2012。
ASTM D4354-2012 在中国标准分类中归属于: W59 其他纺织制品，在国际标准分类中归属于: 59.080.70 土工布。
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5.1x00a0;This practice provides a means by which samples of geosynthetics may be selected to provide a statistically valid sample for the selection of test specimens without previous knowledge of the variability that may exist between production units.
5.2x00a0;The principles stated in Practice D4271, and the illustrative text in that practice can be used by test method authors in preparing sampling statements.
5.3x00a0;This practice gives three procedures for sampling: one for manufacturerx0027;s quality control (MQC), one for manufacturerx0027;s quality assurance (MQA) testing, and a third for purchaserx0027;s specification conformance testing. For this reason, test methods containing a section on sampling that requires the use of this practice should contain a statement in the section on reporting similar to the following:x201c; Report which procedure from Practice D4354 was used for sampling: Procedure A for Manufacturerx0027;s Quality Control (MQC), Procedure B for Manufacturerx0027;s Quality Assurance (MQA) Testing, or Procedure C for Purchaserx0027;s Specification Conformance Testing.
5.4x00a0;Manufacturerx0027;s Quality Assurance is done internally to ensure the manufacturer of the MQC program. When it is required to provide certification to a purchaser as to quality assurance, the MQA testing is to be done by an external MQA testing facility.
1.1x00a0;This practice covers three procedures for the sampling of geosynthetics and rolled erosion control products (RECPs) for testing. This practice requires that instructions on taking laboratory samples and test specimens be part of every test method for geosynthetics.
1.1.1x00a0;The first procedure describes the sampling of production units for the purpose of manufacturerx0027;s quality control (MQC) (Table 1).
| Number of Units in Lot | Number of Units Selected |
| x00a0;1 to 2x00a0; | 1 |
| x00a0;3 to 8x00a0; | 2 |
| x00a0;9 to 27 | 3 |
|
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