1.1 This specification covers asphalt roofing in sheet form, in widths as agreed upon by the purchaser and the seller, composed of asphalt-saturated organic felt coated on both sides with asphalt and surfaced on the weather side with mineral granules, except for any selvage.1.2 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems 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.

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1.1 This practice describes the means of estimating the period of time during which a water sample can be stored after collection and preservation without significantly affecting the accuracy of analysis. 1.2 The maximum holding time is highly matrix-dependent and is also dependent on the specific analyte of interest. Therefore, water samples from a specific source must be tested to determine the period of time that sample integrity is maintained by standard preservation practices. 1.3 In those cases where it is not possible to analyze the sample immediately at the time of collection, this practice does not provide information regarding degradation of the constituent of interest or changes in matrix that may occur from the time of sample collection to the time of the initial analysis. 1.4 This practice does not provide information regarding holding time for concentration of analyte less than one order of magnitude above the criterion of detection. 1.5 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.

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1.1 This practice covers specific requirements for incorporating quality control procedures into an ASTM test method. 1.2 The requirements in this practice should be looked upon as the primary requirements for quality control of a specific test method. In many cases, it may be desirable to implement additional quality control criteria to ensure the desired quality of data. The guidelines are intended to be incorporated into a comprehensive approach to quality assurance and quality control that include the more general approaches described in Practices D3856 and D4210. 1.3 The specific requirements in this practice may not be appropriate for all test methods. They will vary depending on the type of test method used as well as the analyte being determined and the sample matrix being analyzed. 1.4 This practice is for use with quantitative test methods and may not be applicable to qualitative test methods. 1.5 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.

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1.1 This specification covers asphalt roofing in sheet form, 36 in. (914 mm) in width, or other widths agreed upon between the purchaser and the supplier, composed of asphalt-saturated organic felt with approximately half the width of the weather side coated with asphalt and surfaced with mineral granules, for use as a cap sheet in the construction of built-up roofs.1.2 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems 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.>

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