71.080.80 (Aldehydes and ketones) 标准查询与下载



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This test method is applicable to the determination of trace amounts of aldehydes and ketones in aqueous solutions and a wide variety of organic solvents.1.1 This test method covers the determination of total carbonyl in the range from 0.5 to 50 x03BC;g calculated as CO. 1.2 This test method is intended to be general and does not include steps for sample preparation. 1.3 Acetals that hydrolyze under the conditions of the test are also determined. 1.4 Carbonyl derivatives such as acetals and imines that are easily hydrolyzed may be determined by an alternative procedure. 1.5 The developed color is not stable and must be measured within a specified period. Note 18212;Other test methods for the determination of traces of carbonyl compounds are given in Test Methods D1089, D1612, D2119, and D2191. 1.6 Review the current appropriate Material Safety Data Sheets (MSDS) for detailed information concerning toxicity, first aid procedures, and safety precautions. 1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.8 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. Specific hazards statements are given in Note 4 and Section 8.

Standard Test Method for Trace Quantities of Carbonyl Compounds with 2,4-Dinitrophenylhydrazine

ICS
71.080.80 (Aldehydes and ketones)
CCS
发布
2012
实施

4.1x00a0;The determination of the carbonyl content of polymerization-grade 1,3-butadiene is necessary, since in some polymerization reactions, the presence of carbonyls in excess over some specified amount can have a deleterious effect upon the polymer properties or the reaction itself, or both. 1.1x00a0;This test method covers the determination of carbonyls (ketones and aldehydes) in C4 hydrocarbons. This test method was tested on polymerization-grade 1,3-butadiene. 1.2x00a0;The applicable range for this test method is 08201;mg/kg to 508201;mg/kg carbonyls calculated as acetaldehyde. 1.3x00a0;Other C4 hydrocarbons and their mixtures besides polymerization-grade 1,3-butadiene could be tested using this same test method. However, the precision section of this test method covers only carbonyls in applicable range as listed in 1.2, as found in polymerization-grade 1,3-butadiene. 1.4x00a0;WARNINGx2014;Mercury has been designated by many regulatory agencies as a hazardous material that can cause central nervous system, kidney and liver damage. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury containing products. See the applicable product Material Safety Data Sheet (MSDS) for details and EPAx2019;s websitex2014;http://www.epa.gov/mercury/faq.htmx2014;for additional information. Users should be aware that selling mercury and/or mercury containing products into your state or country may be prohibited by law. 1.5x00a0;The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6x00a0;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 Carbonyls in C4 Hydrocarbons

ICS
71.080.80 (Aldehydes and ketones)
CCS
发布
2010
实施

This test method provides an analytical procedure for measuring formaldehyde and other carbonyl compounds in indoor or outdoor air.1.1 This test method covers a procedure for the determination of formaldehyde (HCHO) and other carbonyl compounds (aldehydes and ketones) in air. Other carbonyl compounds that have been validated for determination by this method include acetaldehyde, acetone, propanal (propionaldehyde), methacrolein, 2-butanone (methyl ethyl ketone), butyraldehyde, benzaldehyde, isovaleraldehyde, valeraldehyde, o-tolualdehyde, m-tolualdehyde, p-tolualdehyde, hexanal, and 2,5-dimethylbenzaldehyde. Acrolein and crotonaldehyde can not be determined quantitatively using the analytical procedure described in 10.2 due to the formation of multiple derivative peaks and the instability of the peak ratios . However, the procedure described in the Annex A has been used by the U. S. Environmental Protection Agency to estimate acrolein and crotonaldehyde concentrations in standard atmospheres following special precautions. 1.2 This test method involves drawing air through a cartridge containing silica gel coated with 2,4-dinitrophenylhydrazine (DNPH) reagent. Carbonyl compounds readily form stable derivatives with the DNPH reagent. The DNPH derivatives are analyzed for parent aldehydes and ketones utilizing high performance liquid chromatography (HPLC). The sampling procedure is a modification of U.S. EPA Method TO-11A (see 2.2). 1.3 This test method is based on the specific reaction of carbonyl compounds with DNPH in the presence of an acid to form stable derivatives according to the reaction shown in Fig. 1, (where: both R and R1 are alkyl or aromatic groups (ketones), or both, or either R or R1 is a hydrogen atom (aldehydes)). The determination of formaldehyde and other carbonyl compounds, as DNPH derivatives, is similar to that of U.S. EPA Method TO-11A in that it utilizes HPLC with UV detection as the analytical finish. The detection limits have been extended to other carbonyl compounds that can be determined as outlined in Section 10.2.4. This test method is suitable for determination of formaldehyde and other carbonyl compounds in the concentration range from approximately 10 ppb to 1 ppm (v/v). 1.4 The sampling method gives a time-weighted average (TWA) sample. It can be used for long-term (1 to 24 h) or short-term (5 to 60 min) sampling of air for formaldehyde. 1.5 This test method instructs the user on how to prepare sampling cartridges from commercially available chromatographic grade silica gel cartridges by the application of acidified DNPH to each cartridge. 1.6 The sampling flow rate, as described in this test method, has been validated for sampling rates up to 1.5 L/min. This flow rate limitation is principally due to the high pressure drop (>8 kPa at 1.0 L/min) across the user prepared silica gel cartridges which have a particle size of 55 to 105 x03BC;m. These cartridges are not generally compatible with battery-powered pumps used in personal sampling equipment (for example, those used by industrial hygienists). 1.7 Alternatively, pre-coated DNPH silica gel cartridges are also commercially available and may be substituted provided they can be demonstrated to perform equivalently. Some of these use silica gel of a larger particle size that results in a lower pressure drop across the cartridge. These low pressure drop cartridges may be more suitable for sampling air using battery-powered personal sampling pumps. 1.8 The values stated in SI units are to be regarded as the standard. 1.9 This standard does not purport to ......

Standard Test Method for Determination of Formaldehyde and Other Carbonyl Compounds in Air (Active Sampler Methodology)

ICS
71.080.80 (Aldehydes and ketones)
CCS
发布
2009
实施

This test method provides a measurement of acidity (as formic acid) in formaldehyde solutions. The results of these measurements can be used for specification acceptance.1.1 This test method covers the determination of the acidity of commercially available formaldehyde solutions. 1.2 For purposes of determining conformance of an observed or a calculated value using this test method to relevant specifications, test result(s) shall be rounded off x201C;to the nearest unitx201D; in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E 29. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 For hazard information and guidance, see the supplier's Material Safety Data Sheet. 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. Specific hazard statements are given in Section 7.

Standard Test Method for Acidity of Formaldehyde Solutions

ICS
71.080.80 (Aldehydes and ketones)
CCS
G16
发布
2009
实施

1.1 This specification covers acetaldehyde (998201;% grade). 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 The following applies to all specified limits in this standard; for purposes of determining conformance with this standard, an observed value or a calculated value shall be rounded off ???to the nearest unit??? in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29. 1.4 For specific hazard information and guidance, see the supplierx0027;s Material Safety Data Sheet for materials listed in this specification.

Standard Specification for Acetaldehyde

ICS
71.080.80 (Aldehydes and ketones)
CCS
G17
发布
2007
实施

1.1 This specification covers 50 % uninhibited formaldehyde and 37 % uninhibited and inhibited formaldehyde.1.2 The following applies to all specified limits in this standard; for purposes of determining conformance with this standard, an observed value or a calculated value shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E 29.1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.4 For specific hazard information and guidance, see the supplier's Material Safety Data Sheet for materials listed in this specification.

Standard Specification for Formaldehyde 50 % Grade Uninhibited and 37 % Grade Inhibited and Uninhibited

ICS
71.080.80 (Aldehydes and ketones)
CCS
G16
发布
2007
实施

1.1 This specification covers 508201;% uninhibited formaldehyde and 378201;% uninhibited and inhibited formaldehyde. 1.2 The following applies to all specified limits in this standard; for purposes of determining conformance with this standard, an observed value or a calculated value shall be rounded off ???to the nearest unit??? in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 For specific hazard information and guidance, see the supplierx0027;s Material Safety Data Sheet for materials listed in this specification.

Standard Specification for Formaldehyde 50???% Grade Uninhibited and 37???% Grade Inhibited and Uninhibited

ICS
71.080.80 (Aldehydes and ketones)
CCS
G16
发布
2007
实施

1.1 This specification covers acetaldehyde (99 % grade).1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.3 The following applies to all specified limits in this standard; for purposes of determining conformance with this standard, an observed value or a calculated value shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E 29.1.4 For specific hazard information and guidance, see the supplier's Material Safety Data Sheet for materials listed in this specification.

Standard Specification for Acetaldehyde

ICS
71.080.80 (Aldehydes and ketones)
CCS
G17
发布
2007
实施

1.1 This specification covers acetone (99.5 % grade).1.2 The following applies to all specified limits in this standard; for purposes of determining conformance with this standard, an observed value or a calculated value shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E 29.1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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. Specific hazard statements are given in 1.5 and 4.1. 1.4 This specification specifies the use of a U.S. Occupational Safety and Health Administration (OSHA)-designated hazardous chemical, acetone. For hazard information and guidance see the supplier's Material Safety Data Sheet.

Standard Specification for Acetone

ICS
71.080.80 (Aldehydes and ketones)
CCS
G17
发布
2007
实施

1.1x00a0;This specification covers acetone (99.58201;% grade). 1.2x00a0;The following applies to all specified limits in this standard; for purposes of determining conformance with this standard, an observed value or a calculated value shall be rounded off x201c;to the nearest unitx201d; in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29. 1.3x00a0;The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4x00a0;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. Specific hazard statements are given in 1.5 and 4.1. 1.5x00a0;This specification specifies the use of a U.S. Occupational Safety and Health Administration (OSHA)-designated hazardous chemical, acetone. For hazard information and guidance see the supplierx0027;s Material Safety Data Sheet.

Standard Specification for Acetone

ICS
71.080.80 (Aldehydes and ketones)
CCS
发布
2007
实施

This test method provides a measurement of purity (assay) of aldehydes and ketones. The results of these measurements can be used for specification acceptance. The precision of this test method is applicable only to material having a purity of 98 to 100 %.1.1 This test method covers the determination of the purity of certain commercially available aldehydes and ketones.1.2 In addition to all aldehydes and ketones, all compounds such as vinyl alkyl ethers, acetals, and ketals, that hydrolyze under the conditions of the reaction to form free carbonyl groups, react with the reagent and consequently interfere. Water, alcohols, saturated esters, and hydrocarbons do not react with the reagent, but large amounts of inert organic solvents are undesirable because of the effect on the indicator.1.3 For purposes of determining conformance of an observed or a calculated value using this test method to relevant specifications, test result(s) shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E 29.1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.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. For specific hazard statements, see Section 7.1.6 For hazard information and guidance, see the supplier's Material Safety Data Sheet.

Standard Test Method for Purity of Aldehydes and Ketones

ICS
71.080.80 (Aldehydes and ketones)
CCS
G17
发布
2006
实施

Significance and UseTop Bottom 4.1 This test method provides a measurement of purity (assay) of aldehydes and ketones. The results of these measurements can be used for specification acceptance. 4.2 The precision of this test method is applicable only to material having a purity of 98 to 1008201;%. 1.1 This test method covers the determination of the purity of certain commercially available aldehydes and ketones. 1.2 In addition to all aldehydes and ketones, all compounds such as vinyl alkyl ethers, acetals, and ketals, that hydrolyze under the conditions of the reaction to form free carbonyl groups, react with the reagent and consequently interfere. Water, alcohols, saturated esters, and hydrocarbons do not react with the reagent, but large amounts of inert organic solvents are undesirable because of the effect on the indicator. 1.3 For purposes of determining conformance of an observed or a calculated value using this test method to relevant specifications, test result(s) shall be rounded off 搕o the nearest unit?in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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. For specific hazard statements, see Section 7. 1.6 For hazard information and guidance, see the supplier's Material Safety Data Sheet.

Standard Test Method for Purity of Aldehydes and Ketones

ICS
71.080.80 (Aldehydes and ketones)
CCS
G17
发布
2006
实施

This test method provides a measurement of iron content of formaldehyde solutions. The results of these measurements can be used for specification acceptance.1.1 This test method covers the determination of the total iron content of formaldehyde solutions.1.2 For purposes of determining conformance of an observed or a calculated value using this test method to relevant specifications, test result(s) shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E 29.1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.4 For hazard information and guidance, see the supplier's Material Safety Data Sheet.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 Iron in Formaldehyde Solutions

ICS
71.080.80 (Aldehydes and ketones)
CCS
G17
发布
2006
实施

4. Significance and UseTop Bottom 4.1 This test method provides a measurement of iron content of formaldehyde solutions. The results of these measurements can be used for specification acceptance. 1.1 This test method covers the determination of the total iron content of formaldehyde solutions. 1.2 For purposes of determining conformance of an observed or a calculated value using this test method to relevant specifications, test result(s) shall be rounded off ???to the nearest unit??? in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 For hazard information and guidance, see the supplierx0027;s Material Safety Data Sheet. 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.

Standard Test Method for Iron in Formaldehyde Solutions

ICS
71.080.80 (Aldehydes and ketones)
CCS
G16
发布
2006
实施

This test method is applicable to the determination of trace amounts of aldehydes and ketones in aqueous solutions and a wide variety of organic solvents.1.1 This test method covers the determination of total carbonyl in the range from 0.5 to 50 g calculated as CO.1.2 This test method is intended to be general and does not include steps for sample preparation.1.3 Acetals that hydrolyze under the conditions of the test are also determined.1.4 Carbonyl derivatives such as acetals and imines that are easily hydrolyzed may be determined by an alternative procedure.1.5 The developed color is not stable and must be measured within a specified period. Note 1Other test methods for the determination of traces of carbonyl compounds are given in Test Methods D 1089, D 1612, D 2119, and D 2191.1.6 Review the current appropriate Material Safety Data Sheets (MSDS) for detailed information concerning toxicity, first aid procedures, and safety precautions.1.7 The values stated in SI units are to be regarded as the standard.1.8 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. Specific hazards statements are given in Note 4 and Section 8.

Standard Test Method for Trace Quantities of Carbonyl Compounds with 2,4-Dinitrophenylhydrazine

ICS
71.080.80 (Aldehydes and ketones)
CCS
G04
发布
2005
实施

1.1 This test method covers the determination of total carbonyl in the range from 0.5 to 50 g calculated as CO.1.2 This test method is intended to be general and does not include steps for sample preparation.1.3 Acetals that hydrolyze under the conditions of the test are also determined.1.4 Carbonyl derivatives such as acetals and imines that are easily hydrolyzed may be determined by an alternative procedure.1.5 The developed color is not stable and must be measured within a specified period. Note 1Other test methods for the determination of traces of carbonyl compounds are given in Test Methods D 1089, D 1612, D 2119, and D 2191.1.6 Review the current appropriate Material Safety Data Sheets (MSDS) for detailed information concerning toxicity, first aid procedures, and safety precautions.1.7 The values stated in SI units are to be regarded as the standard.1.8 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. Specific hazards statements are given in Note 4 and Section 8.

Standard Test Method for Trace Quantities of Carbonyl Compounds with 2,4-Dinitrophenylhydrazine

ICS
71.080.80 (Aldehydes and ketones)
CCS
G17
发布
2004
实施

This test method provides a measurement of methanol content of formaldehyde solutions. The results of these measurements can be used for specification acceptance. This test method is applicable to 37 % formaldehyde solutions containing 0 to 2 %, 6 to 8 %, or 12 to 15 % methanol.1.1 This test method provides for the calculation of the methanol content of commercially available 37 % formaldehyde solutions and is based on the relationship of specific gravity to formaldehyde and methanol content. Separate equations are given for three ranges of methanol: 0 to 2 %, 6 to 8 %, and 12 to 15 %.1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.3 For purposes of determining conformance of an observed or a calculated value using this test method to relevant specifications, test result(s) shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E 29.1.4 For hazard information and guidance, see the supplier's Material Safety Data Sheet.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. Specific hazard statements are given in Section 4.

Standard Test Method for Methanol Content of Formaldehyde Solutions

ICS
71.080.80 (Aldehydes and ketones)
CCS
G16
发布
2004
实施

This test method provides a measurement of acidity (as formic acid) in formaldehyde solutions. The results of these measurements can be used for specification acceptance.1.1 This test method covers the determination of the acidity of commercially available formaldehyde solutions.1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.3 For purposes of determining conformance of an observed or a calculated value using this test method to relevant specifications, test result(s) shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E 29.1.4 For hazard information and guidance, see the supplier's Material Safety Data Sheet.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. Specific hazard statements are given in Section 7.

Standard Test Method for Acidity of Formaldehyde Solutions

ICS
71.080.80 (Aldehydes and ketones)
CCS
G16
发布
2004
实施

1.1 This specification covers isophorone (98 % grade) for use in paint, varnish, lacquer, and related products.1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.3 The following applies to all specified limits in this standard; for purposes of determining conformance with this standard, an observed value or a calculated value shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E 29.1.4 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.1.5 For specific hazard information and guidance, see the supplier's Material Safety Data Sheet for materials listed in this specification.

Standard Specification for Isophorone

ICS
71.080.80 (Aldehydes and ketones)
CCS
G17
发布
2004
实施

This test method provides an analytical procedure for measuring formaldehyde and other carbonyl compounds in indoor or outdoor air.1.1 This test method covers a procedure for the determination of formaldehyde (HCHO) and other carbonyl compounds (aldehydes and ketones) in air. Other carbonyl compounds that have been validated for determination by this method include acetaldehyde, acetone, propanal (propionaldehyde), methacrolein, 2-butanone (methyl ethyl ketone), butyraldehyde, benzaldehyde, isovaleraldehyde, valeraldehyde, o-tolualdehyde, m-tolualdehyde, p-tolualdehyde, hexanal, and 2,5-dimethylbenzaldehyde. Acrolein and crotonaldehyde may be quantified with good accuracy following special precautions (see 10.2.5).1.2 This test method involves drawing air through a cartridge containing silica gel coated with 2,4-dinitrophenylhydrazine (DNPH) reagent. Carbonyl compounds readily form stable derivatives with the DNPH reagent. The DNPH derivatives are analyzed for parent aldehydes and ketones utilizing high performance liquid chromatography (HPLC). The sampling procedure is a modification of U.S. EPA Method TO-11A (see 2.2).1.3 This test method is based on the specific reaction of carbonyl compounds with DNPH in the presence of an acid to form stable derivatives according to the reaction shown in Fig. 1, (where: both R and R1 are alkyl or aromatic groups (ketones), or both, or either R or R1 is a hydrogen atom (aldehydes)). The determination of formaldehyde and other carbonyl compounds, as DNPH derivatives, is similar to that of U.S. EPA Method TO-11A in that it utilizes HPLC with UV detection as the analytical finish. The detection limits have been extended to other carbonyl compounds that can be determined as outlined in Section 10.2.4. This test method is suitable for determination of formaldehyde and other carbonyl compounds in the concentration range from approximately 10 ppb to 1 ppm (v/v).1.4 The sampling method gives a time-weighted average (TWA) sample. It can be used for long-term (1 to 24 h) or short-term (5 to 60 min) sampling of air for formaldehyde.1.5 This test method instructs the user on how to prepare sampling cartridges from commercially available chromatographic grade silica gel cartridges by the application of acidified DNPH to each cartridge.1.6 The sampling flow rate, as described in this test method, has been validated for sampling rates up to 1.5 L/min. This flow rate limitation is principally due to the high pressure drop (>8 kPa at 1.0 L/min) across the user prepared silica gel cartridges which have a particle size of 55 to 105 956;m. These cartridges are not generally compatible with battery-powered pumps used in personal sampling equipment (for example, those used by industrial hygienists.)1.7 Alternatively, pre-coated DNPH silica gel cartridges are also commercially available and may be substituted provided they can be demonstrated to perform equivalently. Some of these use silica gel of a larger particle size that results in a lower pressure drop across the cartridge. These low pressure drop cartridges may be more suitable for sampling air using battery-powered personal sampling pumps.1.8 The values stated in SI units are to be regarded as the standard.1.9 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 Formaldehyde and Other Carbonyl Compounds in Air (Active Sampler Methodology)

ICS
71.080.80 (Aldehydes and ketones)
CCS
G17
发布
2003
实施



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