{"id":812,"date":"2025-06-14T15:32:59","date_gmt":"2025-06-14T15:32:59","guid":{"rendered":"https:\/\/pharmacoguide.com\/?p=812"},"modified":"2025-06-14T15:32:59","modified_gmt":"2025-06-14T15:32:59","slug":"sop-title-operation-and-calibration-of-micrometer-screw-gauge","status":"publish","type":"post","link":"https:\/\/pharmacoguide.com\/?p=812","title":{"rendered":"SOP Title: Operation and Calibration of Micrometer Screw Gauge"},"content":{"rendered":"

SOP Title:<\/u><\/strong> Operation and Calibration of Micrometer Screw Gauge<\/u><\/strong><\/p>\n

    \n
  1. Objective:<\/strong><\/li>\n<\/ol>\n

    To lay down the procedure for Operation and Calibration of Micrometer Screw Gauge.<\/p>\n

      \n
    1. Scope:<\/strong><\/li>\n<\/ol>\n

      This SOP is applicable for Operation, Cleaning and Calibration of Micrometer Screw Gauge located in Quality Control Laboratory.<\/p>\n

      \u00a0<\/strong><\/p>\n

        \n
      1. Responsibility:<\/strong><\/li>\n<\/ol>\n
          \n
        • Quality Control: To prepare and review the SOP. To follow the procedures laid down for Operation and Calibration of Micrometer Screw Gauge as per this SOP.<\/li>\n
        • Quality Assurance Department: To review and approve the SOP and Annexures.<\/li>\n<\/ul>\n

          \u00a0<\/strong><\/p>\n

            \n
          1. Accountability:<\/strong><\/li>\n<\/ol>\n

            Head Quality Control Department, Head Quality Assurance Department.<\/p>\n

              \n
            1. Procedure:<\/strong><\/li>\n<\/ol>\n

              \u00a0<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
              \u00a0\u00a0\u00a0 5.1<\/strong><\/td>\nSafety Precautions\/Instructions:<\/strong><\/td>\n<\/tr>\n
              5.1.1<\/td>\nWear personal protective equipments such as hand gloves during operation of micrometer screw gauge.<\/td>\n <\/td>\n<\/tr>\n
              \u00a0\u00a0\u00a0 5.2<\/strong><\/td>\nOperation:<\/strong><\/td>\n<\/tr>\n
              5.2.1<\/td>\nRange of the instrument is 0 to 25 mm & least count is 0.001mm.<\/td>\n <\/td>\n<\/tr>\n
              5.2.2<\/td>\nThere are three scale readings on micrometer screw gauge.<\/td>\n <\/td>\n<\/tr>\n
              5.2.3<\/td>\nMain scale range is 0 to 25 mm, circular scale range is 0 to 50 and coincide scale range is 0 to 10.<\/td>\n <\/td>\n<\/tr>\n
              5.2.4<\/td>\nLoosen the small screw provided by pushing it right side.<\/td>\n <\/td>\n<\/tr>\n
              5.2.5<\/td>\nFirst adjust the circular scale to the 0 reading.<\/td>\n <\/td>\n<\/tr>\n
              5.2.6<\/td>\n0 on the main scale should coincide with the 0 of circular scale reading.<\/td>\n <\/td>\n<\/tr>\n
              5.2.7<\/td>\nThen carefully insert the sample into the micrometer screw gauge by rotating the circular scale knob to hold firmly.<\/td>\n <\/td>\n<\/tr>\n
              5.2.8<\/td>\nFirst note down the reading on the main scale.<\/td>\n <\/td>\n<\/tr>\n
              5.2.9<\/td>\nThen note down the reading on circular scale which is coinciding with the division on the coincide scale.<\/td>\n <\/td>\n<\/tr>\n
              5.2.10<\/td>\nCalculate the thickness of the sample using the formula:<\/p>\n

              Main scale reading + (circular scale x least count)<\/td>\n

              		 <\/td>\n<\/tr>\n
              5.2.11<\/td>\nExample:<\/p>\n

              If main scale reading is 1 mm and circular scale reading coinciding is 44 then by applying formula, thickness of the sample is,<\/p>\n

              1 + (44 x 0.001) \u00a0= 1.044 mm.<\/td>\n

              		 <\/td>\n<\/tr>\n
              5.2.12<\/td>\nRemove the sample and bring the instrument in its initial position.<\/td>\n <\/td>\n<\/tr>\n
              5.3<\/strong><\/td>\nCalibration Procedure:<\/strong><\/td>\n<\/tr>\n
               <\/td>\nFrequency: <\/strong>\u00a0<\/strong>Once in a year by external agency.<\/td>\n<\/tr>\n
              5.3.1<\/td>\nCalibration is carried out by external agency as per SOP \u201cCalibration of Instruments and Equipments\u201d.<\/td>\n <\/td>\n<\/tr>\n
              5.3.2<\/td>\nRefer Annexure for calibration test to be performed and acceptance criteria.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
              Sr. No.<\/strong><\/td>\nTests<\/strong><\/td>\nSet value<\/strong><\/td>\nAcceptance Criteria (mm)<\/strong><\/td>\n<\/tr>\n
              1.<\/td>\nGauge size<\/td>\n2.5 mm<\/td>\n\u00b1 0.004<\/td>\n<\/tr>\n
              5.1 mm<\/td>\n\u00b1 0.004<\/td>\n<\/tr>\n
              7.7 mm<\/td>\n\u00b1 0.004<\/td>\n<\/tr>\n
              10.3 mm<\/td>\n\u00b1 0.004<\/td>\n<\/tr>\n
              12.9 mm<\/td>\n\u00b1 0.004<\/td>\n<\/tr>\n
              15.0 mm<\/td>\n\u00b1 0.004<\/td>\n<\/tr>\n
              17.6 mm<\/td>\n\u00b1 0.004<\/td>\n<\/tr>\n
              20.2 mm<\/td>\n\u00b1 0.004<\/td>\n<\/tr>\n
              22.8 mm<\/td>\n\u00b1 0.004<\/td>\n<\/tr>\n
              25.0 mm<\/td>\n\u00b1 0.004<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n <\/td>\n<\/tr>\n
              5.3.3<\/td>\nGenerate the A. R. No. on the \u201cInstrument\/Equipment Calibration Register\u201d as per SOP and give requisition to QA department for calibration formats of instruments\/equipments on the due date of calibration.<\/td>\n <\/td>\n<\/tr>\n
              5.3.4<\/td>\nFor issuance of calibration report refer SOP \u201cControl of documents, Preparation, Approval, Issuance and Maintenance.<\/td>\n <\/td>\n<\/tr>\n
              5.3.5<\/td>\nUpdate \u201cAnnual Calibration Schedule\u201d and \u201cMonthly Calibration Schedule\u201d as per SOP No \u201cCalibration of Instruments and Equipments\u201d.<\/td>\n <\/td>\n<\/tr>\n
              5.3.6<\/td>\nIf any breakdown occurs, follow procedure as per SOP \u201cCalibration of Instruments and Equipments\u201d.<\/td>\n <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              \u00a0<\/strong><\/p>\n

              \u00a0<\/strong><\/p>\n

                \n
              1. Definitions <\/strong>\/ Abbreviations:<\/strong><\/li>\n<\/ol>\n
                  \n
                • Definitions:<\/strong><\/li>\n
                • Breakdown: Any activity leading to operation of instrument\/equipment other than the set parameters or unusual sound or vibration observed in the instrument\/equipment.<\/li>\n
                • Calibration: Tests performed to ensure that the instrument\/equipment is functioning as per set parameters. These tests are performed as per predefined frequency and also after any major repair or replacement of parts.<\/li>\n<\/ul>\n

                  \u00a0<\/strong><\/p>\n

                    \n
                  • Abbreviations:<\/strong><\/li>\n<\/ul>\n\n\n\n\n\n\n\n\n\n\n
                    Abbreviation<\/strong><\/td>\nExpansion<\/strong><\/td>\n<\/tr>\n
                    SOP<\/td>\nStandard Operating Procedure<\/td>\n<\/tr>\n
                    QC<\/td>\nQuality Control<\/td>\n<\/tr>\n
                    QA<\/td>\nQuality Assurance<\/td>\n<\/tr>\n
                    A. R. No<\/td>\nAnalytical Reference Number<\/td>\n<\/tr>\n
                    No.<\/td>\nNumber<\/td>\n<\/tr>\n
                    mm<\/td>\nmillimetre<\/td>\n<\/tr>\n
                    PM<\/td>\nPreventive Maintenance<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                    \u00a0<\/strong><\/p>\n

                    *Note – Ready to use SOP available in \u201cDOWNLOAD\u201d Section.<\/u><\/em><\/strong><\/p>\n

                    \u00a0<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

                    SOP Title: Operation and Calibration of Micrometer Screw Gauge Objective: To lay down the procedure for Operation and Calibration of Micrometer Screw Gauge. Scope: This SOP is applicable for Operation, Cleaning and Calibration of Micrometer Screw Gauge located in Quality Control Laboratory. \u00a0 Responsibility: Quality Control: To prepare and review the SOP. To follow the […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"templates\/template-full-width.php","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-812","post","type-post","status-publish","format-standard","hentry","category-qc-sop"],"_links":{"self":[{"href":"https:\/\/pharmacoguide.com\/index.php?rest_route=\/wp\/v2\/posts\/812","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pharmacoguide.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pharmacoguide.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pharmacoguide.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pharmacoguide.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=812"}],"version-history":[{"count":1,"href":"https:\/\/pharmacoguide.com\/index.php?rest_route=\/wp\/v2\/posts\/812\/revisions"}],"predecessor-version":[{"id":813,"href":"https:\/\/pharmacoguide.com\/index.php?rest_route=\/wp\/v2\/posts\/812\/revisions\/813"}],"wp:attachment":[{"href":"https:\/\/pharmacoguide.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=812"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pharmacoguide.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=812"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pharmacoguide.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=812"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}