This part of ISO 16017 gives general guidance for the sampling and analysis of volatile organic compounds (VOCs)<\/p>\n
in air. It is applicable to ambient, indoor and workplace atmospheres and the assessment of emissions from<\/p>\n
materials in small- or full-scale test chambers.<\/p>\n
This part of ISO 16017 is appropriate for a wide range of VOCs, including hydrocarbons, halogenated hydrocarbons,<\/p>\n
esters, glycol ethers, ketones and alcohols. A number of sorbents 1) are recommended for the sampling of<\/p>\n
these VOCs, each sorbent having a different range of applicability. Very polar compounds will generally require<\/p>\n
derivatization, very low boiling compounds will only be partially retained by the sorbents, depending on ambient<\/p>\n
temperature, and can only be estimated qualitatively. Semi-volatile compounds will be fully retained by the<\/p>\n
sorbents, but may only be partially recovered. Compounds for which this part of ISO 16017 has been tested are<\/p>\n
given in tables. This part of ISO 16017 may be applicable to compounds not listed, but in these cases it is<\/p>\n
advisable to use a back-up tube containing the same or a stronger sorbent.<\/p>\n
This part of ISO 16017 is applicable to the measurement of airborne vapours of VOCs in a concentration range of<\/p>\n
approximately 0,5 _g\/ m3 to 100 mg\/m3 individual compound.<\/p>\n
The upper limit of the useful range is set by the sorptive capacity of the sorbent used and by the linear dynamic<\/p>\n
range of the gas chromatograph column and detector or by the sample-splitting capability of the analytical<\/p>\n
instrumentation used. The sorptive capacity is measured as a breakthrough volume of air, which determines the<\/p>\n
maximum air volume that shall not be exceeded when sampling.<\/p>\n
The lower limit of the useful range depends on the noise level of the detector and on blank levels of analyte and\/or<\/p>\n
interfering artefacts on the sorbent tubes. Artefacts are typically sub-nanogram for well-conditioned Tenax GR and<\/p>\n
carbonaceous sorbents such as Carbopack\/Carbotrap type materials, carbonized molecular sieves and molecular<\/p>\n
sieves such as Spherocarb, or pure charcoal; at low nanogram levels for Tenax TA and at 5 ng to 50 ng levels for<\/p>\n
other porous polymers such as Chromosorbs and Porapaks. Sensitivity is typically limited to 0,5 _g\/m_ for 10-litre<\/p>\n
air samples with this latter group of sorbents because of their inherent high background.<\/p>\n
The procedure specified in this part of ISO 16017 is applicable to low flowrate personal sampling pumps and gives<\/p>\n
a time-weighted average result. It is not applicable to the measurement of instantaneous or short-term fluctuations<\/p>\n
in concentration.<\/p>\n
1) The sorbents listed in annex C and elsewhere in this International Standard are those known to perform as specified under<\/p>\n
this part of ISO 16017. Each sorbent or product that is identified by a trademarked name is unique and has a sole manufacturer;<\/p>\n
however, they are widely available from many different suppliers. This information is given for the convenience of users of this<\/p>\n
part of ISO 16017 and does not constitute an endorsement by ISO of the product named. Equivalent products may be used if<\/p>\n
they can be shown to lead to the same results.<\/p>\n","protected":false},"excerpt":{"rendered":"
Indoor, ambient and workplace air \u2014 Sampling and analysis of volatile organic compounds by sorbent tube\/thermal desorption\/capillary gas chromatography \u2014 Part 1: Pumped sampling<\/b><\/p>\n\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n ISO<\/b><\/a><\/td>\n 2000-11<\/td>\n 34<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":596381,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[202,2634],"product_tag":[],"class_list":{"0":"post-596369","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-13-040-01","7":"product_cat-iso","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/596369","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/596381"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=596369"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=596369"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=596369"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}