{"id":262440,"date":"2024-10-19T17:24:43","date_gmt":"2024-10-19T17:24:43","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-79672015\/"},"modified":"2024-10-25T13:14:56","modified_gmt":"2024-10-25T13:14:56","slug":"bs-79672015","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-79672015\/","title":{"rendered":"BS 7967:2015"},"content":{"rendered":"

1.1<\/p>\n

This standard provides guidance for gas operatives on:<\/p>\n

    \n
  1. \n

    the general use of an electronic portable combustion gas analyser conforming to BS EN 50379\u20113 and BS 7927:1998 incorporating Amendment No. 1:1999;<\/p>\n

    \n

    NOTE 1 This standard assumes that a portable combustion gas analyser [often referred to colloquially as a \u201cflue gas analyser\u201d (FGA)] of the type specified in BS EN 50379\u20113 or BS 7927:1998 incorporating Amendment No. 1:1999 is available to the gas operative and the operative is competent in its use and the interpretation of any reading obtained. This competence can be demonstrated by satisfactory completion of the relevant ACS assessments, which cover the use of electronic portable combustion gas analysers. See Clause 4<\/b> for further information on competence.<\/p>\n<\/blockquote>\n

    \n

    NOTE 2 BS EN 50379\u20113 superseded BS 7927:1998 incorporating Amendment No. 1:1999 on 1 March 2007. However, electronic portable combustion gas analysers conforming to BS 7927:1998 incorporating Amendment No. 1:1999 remain acceptable for the purposes of this standard.<\/p>\n<\/blockquote>\n<\/li>\n

  2. \n

    the use of such an electronic portable combustion gas analyser to determine ambient levels of carbon monoxide (CO) and, in certain circumstances (see Notes 4 and 5, and Commentary on 8.1<\/b>), detect the presence of carbon dioxide (CO2<\/sub>) in dwellings;<\/p>\n

    \n

    NOTE 3 A definition of a dwelling is given in 3.7<\/b>.<\/p>\n<\/blockquote>\n

    \n

    NOTE 4 One of the main combustion products from gas appliances is CO2<\/sub>, which is mainly regarded as an asphyxiant, but is also a toxic substance which could be present in the air in sufficient quantity to prove harmful. For guidance on the occupational health considerations of CO2<\/sub>, reference can be made to the HSE Guidance note on Workplace exposure limits, EH40\/2005 [8].<\/p>\n<\/blockquote>\n

    \n

    NOTE 5 Electronic portable combustion gas analysers that calculate CO2<\/sub> levels from an oxygen (O2<\/sub>) measurement are:<\/p>\n

      \n
    • \n

      well proven for calculating CO2<\/sub> levels in combustion gases in the flue of an appliance;<\/p>\n<\/li>\n

    • \n

      not suitable for measuring ambient levels of CO2<\/sub> in dwellings; and<\/p>\n<\/li>\n

    • \n

      able to detect increases in the ambient CO2<\/sub> levels in ambient atmospheres and such increases in CO2<\/sub> will provide an early indication of increasing build-up of products of combustion in the room (see Commentary on 8.1<\/b>).<\/p>\n<\/li>\n<\/ul>\n<\/blockquote>\n<\/li>\n

    • \n

      the use of an electronic portable combustion gas analyser to measure CO and CO2<\/sub> in combustion products from the following types of gas-fired appliances:<\/p>\n

        \n
      1. \n

        flueless appliances (type A appliances);<\/p>\n<\/li>\n

      2. \n

        open-flue appliances (type B appliances);<\/p>\n<\/li>\n

      3. \n

        room-sealed appliances (type C appliances); and<\/p>\n<\/li>\n

      4. \n

        all appliances for which the gas appliance manufacturer has provided a purpose-designed sampling point or specific sampling instructions;<\/p>\n<\/li>\n<\/ol>\n

        \n

        NOTE 6 Type A, type B and type C classification of gas-fired appliances is described in PD CEN\/TR 1749 and in 3.21<\/b>.<\/p>\n<\/blockquote>\n<\/li>\n

      5. \n

        the use of an electronic portable combustion gas analyser as a diagnostic instrument to assist a gas operative:<\/p>\n

          \n
        1. \n

          in confirming safe and\/or efficient operation at the time of commissioning, in accordance with gas appliance instructions;<\/p>\n<\/li>\n

        2. \n

          in determining the level of servicing required for a gas-fired appliance;<\/p>\n<\/li>\n

        3. \n

          in confirming satisfactory combustion following servicing in accordance with gas appliance instructions; and<\/p>\n<\/li>\n

        4. \n

          in confirming satisfactory combustion following maintenance.<\/p>\n<\/li>\n<\/ol>\n

          \n

          NOTE 7 At the time of installation of a new appliance it is not necessary to carry out tests to measure the level of combustion products in the flue, unless the gas appliance instructions specify that a test be carried out (see 11.2<\/b>).<\/p>\n<\/blockquote>\n

          \n

          NOTE 8 Electronic portable combustion gas analysers are not to be used as a substitute for normal service and maintenance carried out in accordance with gas appliance instructions. This standard describes the options of how they can be used in conjunction with gas appliance instructions.<\/p>\n<\/blockquote>\n<\/li>\n<\/ol>\n

          1.2<\/p>\n

          This standard gives recommendations on:<\/p>\n

            \n
          1. \n

            combustion performance action levels; and<\/p>\n<\/li>\n

          2. \n

            actions to be taken when CO is detected in dwellings.<\/p>\n<\/li>\n<\/ol>\n

            This standard is for use with appliances using 2nd or 3rd family gases.<\/p>\n

            \n

            NOTE The general recommendations for 3rd family installations contained within this standard also apply to gas installations supplied with LPG\/air mixtures used in the Channel Islands or the Isle of Man, provided:<\/p>\n

              \n
            • \n

              any installed gas equipment has been appropriately converted and is suitable for the gas being supplied, and<\/p>\n<\/li>\n

            • \n

              the provisions of the standard do not conflict with local regulations or authorized local custom and practice.<\/p>\n<\/li>\n<\/ul>\n<\/blockquote>\n

              1.3<\/p>\n

              This standard gives references to further information on the effects of CO.<\/p>\n

              \n

              NOTE Information on the effects of CO can be found in the Institute for Environment and Health\u2019s IEH assessment on indoor air quality in the home (2): Carbon monoxide [9].<\/p>\n<\/blockquote>\n

              1.4<\/p>\n

              This standard does not:<\/p>\n

                \n
              1. \n

                cover the obligations of an emergency service provider (ESP) in responding to a gas emergency or procedures for investigating incidents that are reportable under Section 11(1) of the Reporting of Injuries, Diseases and Dangerous Occurrence Regulations (RIDDOR) 2013 [5] and the Gas Safety (Management) Regulations (GSMR) 1996 [6];<\/p>\n<\/li>\n

              2. \n

                make recommendations arising from the determination of ambient CO2<\/sub> levels; or<\/p>\n<\/li>\n

              3. \n

                deal with the measurement of combustion products such as nitrogen oxides and aldehydes.<\/p>\n

                \n

                NOTE Combustion products from gas appliances also contain oxides of nitrogen (NOx), predominantly nitrogen monoxide (nitric oxide, NO) and nitrogen dioxide (NO2<\/sub>). Although this standard does not cover the measurement of these substances, quantities of such products could be present in the air and could cause harm and irritation to humans. For guidance on the health considerations associated with these combustion products, see the Institute for Environment and Health assessment on indoor air quality in the home: Nitrogen dioxide, formaldehyde, volatile organic compounds, house dust mites, fungi and bacteria [10].<\/p>\n<\/blockquote>\n<\/li>\n<\/ol>\n

                PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
                PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
                6<\/td>\n\t\tForeword <\/td>\n<\/tr>\n
                9<\/td>\nListBullet
                FixBullets
                \t1\tScope <\/td>\n<\/tr>\n
                11<\/td>\n\t3\tTerms and definitions <\/td>\n<\/tr>\n
                13<\/td>\n\t4\tCompetence <\/td>\n<\/tr>\n
                14<\/td>\nTable\u00a01\u2003Approval bodies and statutory regulations by country\/territory
                Table\u00a02\u2003Competence requirements by country\/territory <\/td>\n<\/tr>\n
                15<\/td>\n\t5\tGas analyser
                \t5.1\tSelection
                \t5.2\tPreparation of gas analyser
                \t5.2.1\tPre-checks before use
                \t5.2.2\tPreparation of gas analyser for use <\/td>\n<\/tr>\n
                16<\/td>\n\t6\tInvestigation of reports of fumes, smells and\u00a0spillage\/leakage of combustion products in\u00a0dwellings
                \t6.1\tDetermining scope of investigation
                \t6.2\tSafety principles
                \t6.2.1\tBasic rules <\/td>\n<\/tr>\n
                17<\/td>\n\t6.2.2\tCO investigation action levels
                \t6.3\tPreliminary procedure for carrying out checks for CO\u00a0spillage\/leakage from gas appliances <\/td>\n<\/tr>\n
                18<\/td>\n\tFigure 1\tFlow chart of the preliminary procedure for carrying out checks for CO spillage\/leakage from gas appliances <\/td>\n<\/tr>\n
                19<\/td>\n\t6.3.1\tPossible circumstance identified by preliminary discussion with customer (see Figure 1)
                \t6.3.2\tSweep test for open-flue and room-sealed appliances
                \t6.3.3\tDetailed discussion with customer (see Figure 1) <\/td>\n<\/tr>\n
                20<\/td>\n\t6.4\tConfirming safe operation of a gas appliance
                \t6.4.1\tInvestigation of \u201csuspect\u201d gas appliances
                Figure 2\u2003Flow chart for confirming safe operation of a gas appliance <\/td>\n<\/tr>\n
                21<\/td>\nTable 3\u2003Combustion performance (CO\/CO2 ratio) action levels <\/td>\n<\/tr>\n
                22<\/td>\n\t6.4.2\tDetailed examination <\/td>\n<\/tr>\n
                23<\/td>\n\t6.4.3\tAdditional checks when combustion performance is satisfactory
                \t6.4.4\tFinal checks
                \t6.5\tSpecific gas appliance considerations
                \t6.5.1\tGeneral
                \t6.5.2\tAir extraction\/circulation systems <\/td>\n<\/tr>\n
                24<\/td>\n\t6.5.3\tFlueless (type A)
                \t6.5.4\tOpen-flue (type B)
                \t6.5.5\tRoom-sealed (type C)
                \t6.5.6\tWarm air heaters <\/td>\n<\/tr>\n
                25<\/td>\n\t6.5.7\tFires
                \t6.5.8\tFire\/back boilers and fire\/back circulators <\/td>\n<\/tr>\n
                26<\/td>\n\t6.5.9\tCookers
                \t6.5.10\tAppliances in compartments
                \t6.6\tCheck of non-gas appliances and\/or for continued smell\/presence of CO <\/td>\n<\/tr>\n
                27<\/td>\nFigure 3\u2003Flow chart for non-gas appliances and\/or continued smell\/presence of CO <\/td>\n<\/tr>\n
                28<\/td>\n\t7\tReacting to activation of CO detectors
                \t7.1\tGeneral
                \t7.2\tElectrical CO detector <\/td>\n<\/tr>\n
                29<\/td>\nFigure 4\u2003Responding to electrical CO detector (alarm) activations <\/td>\n<\/tr>\n
                30<\/td>\n\t7.3\tCO indicator card
                \t8\tDetermining ambient levels of carbon monoxide\u00a0(CO) in a room
                \t8.1\tGeneral advice on measurement procedures <\/td>\n<\/tr>\n
                31<\/td>\n\t8.2\tPreparation for CO build-up testing
                \t8.3\tTesting procedures
                \t8.3.1\tGeneral <\/td>\n<\/tr>\n
                32<\/td>\n\t8.3.2\tRoom-sealed (type C) appliances
                \t8.3.3\tOpen-flue (type B) appliances
                \t8.3.4\tFlueless (type A) appliances <\/td>\n<\/tr>\n
                33<\/td>\n\t8.3.5\tAdditional considerations
                \t8.3.6\tIdentifying external sources of CO <\/td>\n<\/tr>\n
                34<\/td>\n\t9\tInformation on levels of CO
                \t9.1\tGeneral
                \t9.2\tAdditional information on levels of CO for gas cookers
                \t9.3\tResponding to CO levels <\/td>\n<\/tr>\n
                35<\/td>\n\t9.4\tCO from appliances other than gas appliances
                \t9.5\tCO from sources other than appliances <\/td>\n<\/tr>\n
                36<\/td>\n\t9.6\tReferences to information on the effects of CO
                \t9.7\tMovement of CO
                \t9.8\tGeneration of CO, smells and fumes when no fault with gas\u00a0installation <\/td>\n<\/tr>\n
                37<\/td>\n\t10\tDetermination of the combustion performance of an appliance
                \t10.1\tTypes of gas-fired appliance
                \t10.2\tGeneral procedures <\/td>\n<\/tr>\n
                38<\/td>\n\t10.3\tSample probes
                \t10.4\tSampling procedure
                \t10.4.1\tFlueless (type A) appliances <\/td>\n<\/tr>\n
                40<\/td>\n\t10.4.2\tOpen-flue (type B) appliances <\/td>\n<\/tr>\n
                42<\/td>\n\t10.4.3\tRoom-sealed (type C) appliances
                \t11\tProcedure for commissioning, servicing and maintenance using a gas analyser
                \t11.1\tGeneral <\/td>\n<\/tr>\n
                43<\/td>\n\t11.2\tConfirmation of safe and\/or efficient operation at the time of\u00a0commissioning
                \t11.3\tDetermination of the level of servicing required and subsequent actions (see Figure\u00a05) <\/td>\n<\/tr>\n
                44<\/td>\nFigure 5\u2003\ufffdProcedure for use of a gas analyser to determine whether or not the combustion performance is satisfactory, and the subsequent actions to be performed <\/td>\n<\/tr>\n
                45<\/td>\n\t11.4\tConfirmation of satisfactory combustion following servicing in accordance with the gas appliance instructions (Figure\u00a06) <\/td>\n<\/tr>\n
                46<\/td>\n\t11.5\tConfirmation of satisfactory combustion following maintenance (Figure\u00a07)
                Figure 6\u2003\ufffdProcedure for the use of a gas analyser as an aid to checking combustion performance subsequent to servicing carried out in accordance with the gas appliance instructions <\/td>\n<\/tr>\n
                47<\/td>\nFigure 7\u2003Procedure for the use of a gas analyser to confirm satisfactory combustion following maintenance <\/td>\n<\/tr>\n
                48<\/td>\n\t12\tCombustion action levels
                \t12.1\tGeneral <\/td>\n<\/tr>\n
                49<\/td>\n\t12.2\tCO\/CO2 ratios above the action level
                \t12.3\tFailure to achieve a satisfactory combustion performance
                \t13\tCompletion and leaving the property <\/td>\n<\/tr>\n
                50<\/td>\n\t14\tReports <\/td>\n<\/tr>\n
                51<\/td>\n\tAnnex A\tGas analyser
                \tAnnex B\tMovement of CO in buildings <\/td>\n<\/tr>\n
                53<\/td>\n\tAnnex C\tMulti-hole sample probes
                \tFigure C.1\tProbe for gas cooker grill
                \tFigure C.2\tAngled probe <\/td>\n<\/tr>\n
                54<\/td>\n\tAnnex D\tFlue\/draught diverter configurations for warm air\u00a0heaters
                Figure D.1\u2003Flue\/draught diverter configurations for warm air heaters <\/td>\n<\/tr>\n
                55<\/td>\n\tAnnex E\tBackground to the use of a gas analyser in regular\u00a0servicing <\/td>\n<\/tr>\n
                56<\/td>\n\tAnnex F\tDwelling investigation report
                Figure F.1\u2003Example format of a dwelling investigation report <\/td>\n<\/tr>\n
                57<\/td>\n\tAnnex G\tGas appliance investigation report
                Figure G.1\u2003Example format of a gas appliance investigation report <\/td>\n<\/tr>\n
                58<\/td>\n\t\tBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

                Guide for the use of electronic portable combustion gas analysers for the measurement of carbon monoxide in dwellings and the combustion performance of domestic gas-fired appliances<\/b><\/p>\n\n\n\n\n
                Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
                BSI<\/b><\/a><\/td>\n2015<\/td>\n62<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":262447,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[206,2641],"product_tag":[],"class_list":{"0":"post-262440","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-13-040-40","7":"product_cat-bsi","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\/262440","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\/262447"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=262440"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=262440"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=262440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}