Z15 大气环境有毒害物质分析方法 标准查询与下载



共找到 764 条与 大气环境有毒害物质分析方法 相关的标准,共 51

Air quality. Workplace air. Sampling and analysis of gaseous organic pollutants on charcoal. Pumping sampling.

ICS
13.040.30
CCS
Z15
发布
1991-10-01
实施
1991-10-05

Air quality. Workplace air. Sampling and analysis of gaseous organic pollutants on silicon gel. Sampling by pumping.

ICS
13.040.30
CCS
Z15
发布
1991-10-01
实施
1991-10-05

Applicable to flowing gas streams in ducts, chimneys or flues from asbestos industrial processes, in the range 0.05 fibre/ml to 10 fibre/ml.

Characterization of air quality - Stationary source emissions - Method for the determination of asbestos plant emissions by fibre count measurement

ICS
13.040.40
CCS
Z15
发布
1991-08-30
实施
1991-08-30

Air quality. Ambient atmosphere. Measurement of the concentration of particulate matter suspended in the ambient air. Gravimetric method.

ICS
13.040.20
CCS
Z15
发布
1991-06-01
实施
1991-06-13

Qualité de l'air - Air des lieux de travail - Détermination du bromure de méthyle - Prélèvement par pompage sur charbon actif traité.

ICS
13.040.30
CCS
Z15
发布
1991-04-01
实施
1991-04-05

Nitrogen dioxide plays an important role in photochemical smog-forming reactions and, in sufficient concentrations, is deleterious to health, agriculture, materials, and visibility. In combustion processes, significant amounts of nitric oxide (NO) may be produced by combination of atmospheric nitrogen and oxygen; at ambient temperatures NO can be converted to NO2 by oxygen and other atmospheric oxidants. Nitrogen dioxide may also be generated from processes involving nitric acid, nitrates, the use of explosives, and welding.1.1 This test method covers the manual determination of nitrogen dioxide (NO2) in the atmosphere in the range from 4 to 10 000 μg/m3 (0.002 to 5 ppm(v)) when sampling is conducted in fritted-tip bubblers. 1.2 For concentrations of NO2 in excess of 10 mg/m3 (5 ppm(v)), as occur in industrial atmospheres, gas burner stacks, or automotive exhaust, or for samples relatively high in sulfur dioxide content, other methods should be applied. See for example Test Method D1608. 1.3 The maximum sampling period is 60 min at a flow rate of 0.4 L/min. 1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 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. See also 7.2.2 for other precautions.

Standard Test Method for Nitrogen Dioxide Content of the Atmosphere (Griess-Saltzman Reaction)

ICS
13.040.20 (Ambient atmospheres)
CCS
Z15
发布
1991
实施

The sodium bicarbonate coated tube filter method provides a means of separating and collecting atmospheric gaseous fluoride and particulate fluoride samples. Since the samples are collected on the dry tube and filter, the fluoride may be eluted with a small volume of eluant (see Section 10 for specific instructions on fluoride elution). Elution into a small volume and the sensitivity of the analytical methods employed allow the analysis of the collected fluoride to fractional parts of a microgram per cubic metre on samples taken for a 12-h period.1.1 The sodium bicarbonate-coated glass tube and membrane filter method provides a means for the separation and collection of gaseous atmospheric forms of fluoride reactive with sodium bicarbonate and particulate forms of fluoride which are collected by a filter. The test method is applicable to 12-h sampling periods, collecting 1 to 500 μg of gaseous fluoride at a 15 L/min (0.5 ft3/min) sampling rate or about 0.1 to 50 μg/m3. The length of the sampling period can therefore be adjusted so that the amount of fluoride collected will fall within this range. The actual lower limit of the test method will depend upon the sensitivity of the analytical method employed and the quality of reagents used in tube preparation and analysis. It is recommended that the lower limit of detection should be considered as two times the standard deviation of the monthly arithmetic mean blank value. Any values greater than the blank by less than this amount should be reported as “blank value.” 1.2 The values stated in SI units are to be regarded as standard. The inch-pound units in parentheses may be approximate. 1.3 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.

Standard Test Method for Separation and Collection of Particulate and Gaseous Fluorides in the Atmosphere (Sodium Bicarbonate-Coated Glass Tube and Particulate Filter Method)

ICS
13.040.20 (Ambient atmospheres)
CCS
Z15
发布
1991
实施

This test method provides a means of automatically separating and collecting atmospheric particulate and acidic gaseous fluoride samples. Since the samples are collected on dry tapes, the samples are in a form which allows elution of the fluoride content with a small volume of eluent. Consequently, the method allows analyses of air samples taken for a time period as short as several minutes.1.1 This test method describes the automatic separation and collection on chemically treated paper tapes of particulate and gaseous forms of acidic fluorides in the atmosphere by means of a double paper tape sampler. The sampler may be programmed to collect and store individual air samples obtained over time periods from several minutes to 3 h. A 30.5-m (100-ft) tape will allow unattended operation for the automatic collection of up to 600 samples. 1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.3 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.

Standard Test Method for Automated Separation and Collection of Particulate and Acidic Gaseous Fluoride in the Atmosphere (Double Paper Tape Sampler Method)

ICS
13.040.20 (Ambient atmospheres)
CCS
Z15
发布
1991
实施

The Hi-Vol sampler is commonly used for the collection of the airborne particulate component of the atmosphere. Some physical and chemical parameters of the collected particulate matter are dependent upon the physical characteristics of the collection system and the choice of filter media. A variety of options available for the Hi-Vol sampler give it broad versatility and allow the user to develop information about the size and quantity of airborne particulate material and, using subsequent chemical analytical techniques, information about the chemical properties of the particulate matter. This test method presents techniques that when uniformly applied, provide measurements suitable for intersite comparisons. This test method measures the atmosphere presented to the sampler with good precision, but the actual dust levels in the atmosphere can vary widely from one location to another. This means that sampler location may be of paramount importance, and may impose far greater variability of results than any lack of precision in the method of measurement. In particular, localized dust sources may exert a major influence over a very limited area immediately adjacent to such sources. Examples include unpaved streets, vehicle traffic on roadways with a surface film of dust, building demolition and construction activity, or nearby industrial plants with dust emissions. In some cases, dust levels measured close to such sources may be several times the community wide levels exclusive of such localized effects (see Practice D 1357).1.1 This test method provides for sampling a large volume of atmosphere, 1600 to 2400 m3 (55 000 to 85 000 ft3), by means of a high flow-rate vacuum pump at a rate of 1.13 to 1.70 m3/min (40 to 60 ft3/min) (1, 2, 3 and 4). 1.2 This flow rate allows suspended particles having diameters of less than 100 μm (stokes equivalent diameter) to be collected. However, the collection efficiencies for particles larger than 20 μm decreases with increasing particle size and it varies widely with the angle of the wind with respect to the roof ridge of the sampler shelter and with increasing speed (5). When glass fiber filters are used, particles within the size range of 100 to 0.1 μm diameters or less are ordinarily collected. 1.3 The upper limit of mass loading will be determined by plugging of the filter medium with sample material, which causes a significant decrease in flow rate (see 6.4). For very dusty atmospheres, shorter sampling periods will be necessary. The minimum amount of particulate matter detectable by this method is 3 mg (95 % confidence level). When the sampler is operated at an average flow rate of 1.70 m3/min (60 ft3/min) for 24 h, this is equivalent to 1 to 2 μg/m3 (3). 1.4 The sample that is collected may be subjected to further analyses by a variety of methods for specific constituents. 1.5 Values stated in SI units shall be regarded as the standard. Inch-pound units are shown for information only. 1.6 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.

Standard Test Method for Determination of Total Suspended Particulate Matter in the Atmosphere (High-Volume Sampler Method)

ICS
13.040.01 (Air quality in general)
CCS
Z15
发布
1991
实施

This test method provides a means of automatically separating and collecting atmospheric particulate and acidic gaseous fluoride samples. Since the samples are collected on dry tapes, the samples are in a form which allows elution of the fluoride content with a small volume of eluent. Consequently, the method allows analyses of air samples taken for a time period as short as several minutes.1.1 This test method describes the automatic separation and collection on chemically treated paper tapes of particulate and gaseous forms of acidic fluorides in the atmosphere by means of a double paper tape sampler. The sampler may be programmed to collect and store individual air samples obtained over time periods from several minutes to 3 h. A 30.5-m [100-ft] tape will allow unattended operation for the automatic collection of up to 600 samples.1.2 The values stated in SI units are to be regarded as standard. The values given in brackets are for information only.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.

Standard Test Method for Automated Separation and Collection of Particulate and Acidic Gaseous Fluoride in the Atmosphere (Double Paper Tape Sampler Method)

ICS
13.040.20 (Ambient atmospheres)
CCS
Z15
发布
1991
实施

The Hi-Vol sampler is commonly used for the collection of the airborne particulate component of the atmosphere. Some physical and chemical parameters of the collected particulate matter are dependent upon the physical characteristics of the collection system and the choice of filter media. A variety of options available for the Hi-Vol sampler give it broad versatility and allow the user to develop information about the size and quantity of airborne particulate material and, using subsequent chemical analytical techniques, information about the chemical properties of the particulate matter. This test method presents techniques that when uniformly applied, provide measurements suitable for intersite comparisons. This test method measures the atmosphere presented to the sampler with good precision, but the actual dust levels in the atmosphere can vary widely from one location to another. This means that sampler location may be of paramount importance, and may impose far greater variability of results than any lack of precision in the method of measurement. In particular, localized dust sources may exert a major influence over a very limited area immediately adjacent to such sources. Examples include unpaved streets, vehicle traffic on roadways with a surface film of dust, building demolition and construction activity, or nearby industrial plants with dust emissions. In some cases, dust levels measured close to such sources may be several times the community wide levels exclusive of such localized effects (see Practice D 1357).1.1 This test method provides for sampling a large volume of atmosphere, 1600 to 2400 m3 [55 000 to 85 000 ft 3], by means of a high flow-rate vacuum pump at a rate of 1.13 to 1.70 m3/min [40 to 60 ft3/min] (1, 2, 3 and 4).1.2 This flow rate allows suspended particles having diameters of less than 100 m (stokes equivalent diameter) to be collected. However, the collection efficiencies for particles larger than 20 m decreases with increasing particle size and it varies widely with the angle of the wind with respect to the roof ridge of the sampler shelter and with increasing speed (). When glass fiber filters are used, particles within the size range of 100 to 0.1 m diameters or less are ordinarily collected.1.3 The upper limit of mass loading will be determined by plugging of the filter medium with sample material, which causes a significant decrease in flow rate (see ). For very dusty atmospheres, shorter sampling periods will be necessary. The minimum amount of particulate matter detectable by this method is 3 mg (95 % confidence level). When the sampler is operated at an average flow rate of 1.70 m3/min [60 ft3/min] for 24 h, this is equivalent to 1 to 2 g/m 3 (3). 1.4 The sample that is collected may be subjected to further analyses by a variety of methods for specific constituents.1.5 Values stated in SI units shall be regarded as the standard. Inch-pound units are shown for information only.1.6 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.

Standard Test Method for Determination of Total Suspended Particulate Matter in the Atmosphere (High-Volume Sampler Method)

ICS
13.040.01 (Air quality in general)
CCS
Z15
发布
1991
实施

Nitrogen dioxide plays an important role in photochemical smog-forming reactions and, in sufficient concentrations, is deleterious to health, agriculture, materials, and visibility. In combustion processes, significant amounts of nitric oxide (NO) may be produced by combination of atmospheric nitrogen and oxygen; at ambient temperatures NO can be converted to NO2 by oxygen and other atmospheric oxidants. Nitrogen dioxide may also be generated from processes involving nitric acid, nitrates, the use of explosives, and welding.1.1 This test method covers the manual determination of nitrogen dioxide (NO2) in the atmosphere in the range from 4 to 10 000 g/m3 (0.002 to 5 ppm(v)) when sampling is conducted in fritted-tip bubblers.1.2 For concentrations of NO2 in excess of 10 mg/m3 (5 ppm(v)), as occur in industrial atmospheres, gas burner stacks, or automotive exhaust, or for samples relatively high in sulfur dioxide content, other methods should be applied. See for example Test Method D 1608.1.3 The maximum sampling period is 60 min at a flow rate of 0.4 L/min.1.4 The values stated in SI units are to be regarded as standard. The values given in brackets are for information only.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. See also for other precautions.

Standard Test Method for Nitrogen Dioxide Content of the Atmosphere (Griess-Saltzman Reaction)

ICS
13.040.20 (Ambient atmospheres)
CCS
Z15
发布
1991
实施

The sodium bicarbonate coated tube filter method provides a means of separating and collecting atmospheric gaseous fluoride and particulate fluoride samples. Since the samples are collected on the dry tube and filter, the fluoride may be eluted with a small volume of eluant (see Section 10 for specific instructions on fluoride elution). Elution into a small volume and the sensitivity of the analytical methods employed allow the analysis of the collected fluoride to fractional parts of a microgram per cubic metre on samples taken for a 12-h period.1.1 The sodium bicarbonate-coated glass tube and membrane filter method provides a means for the separation and collection of gaseous atmospheric forms of fluoride reactive with sodium bicarbonate and particulate forms of fluoride which are collected by a filter. The test method is applicable to 12-h sampling periods, collecting 1 to 500 g of gaseous fluoride at a 15 L/min [0.5 ft3/min] sampling rate or about 0.1 to 50 g/m 3. The length of the sampling period can therefore be adjusted so that the amount of fluoride collected will fall within this range. The actual lower limit of the test method will depend upon the sensitivity of the analytical method employed and the quality of reagents used in tube preparation and analysis. It is recommended that the lower limit of detection should be considered as two times the standard deviation of the monthly arithmetic mean blank value. Any values greater than the blank by less than this amount should be reported as "blank value."1.2 The values stated in SI units are to be regarded as standard. The inch-pound units in brackets may be approximate.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.

Standard Test Method for Separation and Collection of Particulate and Gaseous Fluorides in the Atmosphere (Sodium Bicarbonate-Coated Glass Tube and Particulate Filter Method)

ICS
13.040.20 (Ambient atmospheres)
CCS
Z15
发布
1991
实施

This test method provides a means of separation and collection of particulate and water soluble gaseous fluoride and provides samples that are convenient to analyze.1.1 This test method provides a procedure for separation and collection on a chemically treated filter and in an impinger of particulate and water-soluble gaseous fluoride in the atmosphere. The sampling rate may vary from 30 L/min (1.0 ft3/min) to 15 L/min (0.5 ft3/min) for longer sampling periods depending on the atmospheric fluoride concentration. This test method is not intended to be applied to gaseous fluorine compounds that are not water-soluble1.2 There are several limitations of the test method:1.2.1 Although the acid-treated, medium retentive, prefilter has been shown to allow passage of HF, it will restrict passage of particulate matter only as small as about 1 m. Thus, smaller particulate matter may pass through the filter and be collected in or pass through the impingers.1.2.2 The maximum sample volume to be taken using this test method prior to changing the acid-treated prefilter is recommended as 12 m3. This recommendation is made to minimize any effects due to particulate matter build-up.1.3 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are for information only.1.4 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.For specific precautionary statements, see 7.2 and 7.4.6.

Standard Test Method for Separation and Collection of Particulate and Water-Soluble Gaseous Fluorides in the Atmosphere (Filter and Impinger Method)

ICS
13.040.20 (Ambient atmospheres)
CCS
Z15
发布
1991
实施

Air quality. Workplace air. Gravimetric determination of particulate pollution deposits. Rotating disk method.

ICS
13.040.30
CCS
Z15
发布
1990-10-01
实施
1990-10-20

This International Standard specifies a spectro-photometric method, known as the tetrachloro-mercurate (TCM)/pararosaniline method, for the de-termination of the mass concentration of sulfur di-oxide in ambient air within the range of 20 μg/m to about 500 μg/m. The sampling period is 30 min to 60 min. If a longer sampling period than 60 min is used, or higher concentrations of sulfur dioxide (up to about 2000 μg/m) are expected, care is necessary to en-sure that the concentrations of sulfur dioxide in the absorption solution given in clause 6, paragraph 2 are not exceeded. This can be achieved by a re-duction of the volume flow rate during sampling. Sample solutions obtained by this procedure may be stored for up to 24 h before making measure-ments, provided that they are kept in a refrigerator at about 5 ℃. Substances which are known to interfere and which might be present in the air being sampled are listed in 7.5 Indications of the precision and accuracy of the method, and of the lower detection limit are given in 8.2. Detection limit, standard deviations and interfer-ences qualify the TCM-method for orientating field measurements in the higher concentration range. When more accurate measurements are necessary, instruments which are specially tested and cali-brated should be used.

Ambient air; determination of the mass concentration of sulfur dioxide; tetrachloromercurate (TCM)/pararosaniline method

ICS
13.040.20
CCS
Z15
发布
1990-09
实施
1990-09-01

Workplace air. Determination of vinyl chloride. Charcoal tube/gas chromatographic method.

ICS
13.040.30
CCS
Z15
发布
1990-06-01
实施
1990-06-20

Work-place air. Determination of mass concentration nitrogen dioxide. Method using detector tubes for short-term sampling with direct indication.

ICS
13.040.30
CCS
Z15
发布
1990-06-01
实施
1990-06-20

Air quality. Ambient air. Determination of lead in airborne particulate. Atomic absorption spectrometry.

ICS
13.040.20
CCS
Z15
发布
1990-06
实施
1990-05-20

Air quality - Air in workplaces - Individual or fixed station sampling of the alveolar fraction of particulate pollution. 10 mm cyclone separation method.

ICS
13.040.30
CCS
Z15
发布
1990-05-01
实施
1990-05-20



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