氯化钙检测

1.1 This specification covers calcium chloride and as a desiccant.

1.2 The values stated in SI units are to be regarded as the standard.

1.3 For purposes of determining conformance to this specification in accordance with the rounding method in Practice E 29.

1.4 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.

1.1 This specification covers calcium chloride and can also be used as a desiccant material.

1.2 The values stated in SI units are to be regarded as the standard.

1.3 The following precautionary caveat pertains only to the test method portion Section 6.1 of this specification. 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.

Use this test method to obtain a quantitative value indicating the rate of moisture vapor emission from a concrete floor and whether or not that floor is acceptable to receive resilient floor covering. The moisture vapor emission rate only reflects the condition of the concrete floor at the time of the test. All concrete subfloors emit some amount of moisture in vapor form. Concrete moisture emission is a natural process driven by environmental conditions. All floor coverings are susceptible to failure from excessive moisture vapor emissions. The moisture vapor emitted from a concrete slab is measured in pounds. This measurement is the equivalent weight of water evaporating from 1000 ft² of concrete surface in a 24x2013;h period. The calcium chloride moisture test has been the industry standard for making this determination and is a practical well-established and accepted test of dynamic moisture. It will produce quantified results directly applicable to flooring manufacturer''s specifications. The results obtained reflect only the condition of the concrete floor at that time.

1.1 This test method covers the quantitative determination of the rate of moisture vapor emitted from below-grade on-grade and above-grade (suspended) bare concrete floors.

1.2 This test shall not be used to evaluate the rate of moisture vapor emitted by lightweight concrete floors containing lightweight aggregate.

1.3 This test shall not be used to evaluate moisture vapor emissions over coatings on concrete or over patching or leveling compounds.

1.4 This quantity of moisture shall be expressed as the rate of moisture vapor emission measured in pounds of moisture over a 1000 ft² area during a 24-h period.

1.5 This test shall not be used to evaluate moisture emissions over gypsum concrete.

1.6 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

1.7 This standard does not purport to address all of the safety concerns 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.

Use this test method to obtain a quantitative value indicating the rate of moisture vapor emission from a concrete floor and whether or not that floor is acceptable to receive resilient floor covering. The moisture vapor emission rate only reflects the condition of the concrete floor at the time of the test. All concrete subfloors emit some amount of moisture in vapor form. Concrete moisture emission is a natural process driven by environmental conditions. All floor coverings are susceptible to failure from excessive moisture vapor emissions. The moisture vapor emitted from a concrete slab is measured in pounds. This measurement is the equivalent weight of water evaporating from 1000 ft² of concrete surface in a 24x2013;h period. The calcium chloride moisture test has been the industry standard for making this determination and is a practical well-established and accepted test of dynamic moisture. It will produce quantified results directly applicable to flooring manufacturerrsquo;specifications. The results obtained reflect only the condition of the concrete floor at that time.

1.1 This test method covers the quantitative determination of the rate of moisture vapor emitted from below-grade and above-grade (suspended) concrete floors.

1.2 This quantity of moisture shall be expressed as the rate of moisture vapor emission measured in pounds of moisture over a 1000 ft² area during a 24-h period.

1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

1.4 This standard does not purport to address all of the safety concerns and determine the applicability of regulatory limitations prior to use.

Calcium chloride is available in various forms and purities. A major use is the de-icing and dust control of roads. It is also used in the coal industry for dustproofing and freezeproofing in foods in electrolytic cells and in refrigeration brines. The test methods listed in 1.2 provide procedures for analyzing calcium chloride to determine if it is suitable for its intended use.

1.1 These test methods cover the analysis of calcium chloride and solutions.

1.2 Procedures are given for the determination of calcium chloride magnesium chloride potassium chloride sodium chloride and calcium hydroxide. The test methods appear in the following order:

1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.

1.4 This standard does not purport to address all of the safety concerns 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. Specific hazard statements are given in Section 5.

1.5 Review the current Material Safety Data Sheet (MSDS) for detailed information concerning toxicity first aid procedures handling and safety precautions.

This test method describes procedures to be used for sampling calcium chloride and for determining grading of solid forms of calcium chloride for comparison with the requirements of a specification such as Specification D98.

1.1 This test method covers sampling of solid and liquid forms of calcium chloride and sieve analysis of solid form calcium chloride. Referee procedures for chemical analysis are covered in Test Methods E449.

1.2 A rapid method of chemical analysis is shown in Appendix X1. This rapid method is not to be used for determining chemical compliance of calcium chloride with specification requirements such as in Specification D98.

1.3 The values stated in SI units are to be regarded as the standard.

1.4 This standard does not purport to address the safety concerns 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.

1.1.1 This appendix covers a rapid method for chemical analysis of calcium chloride.