{"id":1890,"date":"2026-03-28T09:12:00","date_gmt":"2026-03-28T03:42:00","guid":{"rendered":"https:\/\/ehs-hub.contentstudioo.com\/?p=1890"},"modified":"2026-02-28T19:30:40","modified_gmt":"2026-02-28T14:00:40","slug":"important-indian-standard-on-code-of-practice-for-industrial-ventilation-complete-safety-guide","status":"publish","type":"post","link":"https:\/\/ehs-hub.contentstudioo.com\/index.php\/2026\/03\/28\/important-indian-standard-on-code-of-practice-for-industrial-ventilation-complete-safety-guide\/","title":{"rendered":"Important Indian Standard on Code of Practice for Industrial Ventilation | Complete Safety Guide"},"content":{"rendered":"\n<h1 class=\"wp-block-heading has-white-color has-text-color has-background has-link-color wp-elements-e9e366e448b4ff174643404cce238600\" style=\"background-color:#bc1414\">\ud83c\udf2c\ufe0f Why Industrial Ventilation Is More Than Just \u201cAir Movement\u201d<\/h1>\n\n\n\n<p>Walk into any factory floor \u2014 welding sparks flying, chemicals mixing, dust rising \u2014 and ask yourself a simple question:<\/p>\n\n\n\n<p><strong>What are workers breathing right now?<\/strong><\/p>\n\n\n\n<p>Industrial ventilation is not about comfort. It is about survival. It protects workers from:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Toxic fumes<\/li>\n\n\n\n<li>Hazardous dust<\/li>\n\n\n\n<li>Explosive vapours<\/li>\n\n\n\n<li>Excessive heat<\/li>\n\n\n\n<li>Oxygen deficiency<\/li>\n<\/ul>\n\n\n\n<p>In India, the primary reference for industrial ventilation design and implementation is <strong>IS 3103<\/strong>, published by the <strong>Bureau of Indian Standards<\/strong>.<\/p>\n\n\n\n<p>This standard acts as a foundational guide for factories, consultants, safety officers, and engineers who design ventilation systems that actually protect human life \u2014 not just pass inspections.<\/p>\n\n\n\n<p>In this article, we\u2019ll break down everything you need to know about this important Indian Standard in a simple, practical, and actionable way.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udcd8 What Is IS 3103 \u2013 Code of Practice for Industrial Ventilation?<\/h1>\n\n\n\n<p><strong>IS 3103<\/strong> provides guidelines for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Designing ventilation systems in industrial buildings<\/li>\n\n\n\n<li>Controlling airborne contaminants<\/li>\n\n\n\n<li>Maintaining safe working environments<\/li>\n\n\n\n<li>Preventing occupational diseases<\/li>\n\n\n\n<li>Ensuring compliance with Indian safety laws<\/li>\n<\/ul>\n\n\n\n<p>It is widely referenced under compliance requirements linked to the <strong>Factories Act, 1948<\/strong>.<\/p>\n\n\n\n<p>While the Act mandates safe working conditions, <strong>IS 3103 provides the technical roadmap to achieve it.<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83c\udfed Why This Standard Matters in Indian Industries<\/h1>\n\n\n\n<p>India\u2019s industrial landscape includes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Chemical plants<\/li>\n\n\n\n<li>Pharmaceutical units<\/li>\n\n\n\n<li>Foundries<\/li>\n\n\n\n<li>Textile mills<\/li>\n\n\n\n<li>Paint manufacturing<\/li>\n\n\n\n<li>Food processing<\/li>\n\n\n\n<li>Engineering workshops<\/li>\n<\/ul>\n\n\n\n<p>Each of these environments produces airborne contaminants.<\/p>\n\n\n\n<p>Without proper ventilation, workers may suffer from:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Silicosis<\/li>\n\n\n\n<li>Asthma<\/li>\n\n\n\n<li>Chemical poisoning<\/li>\n\n\n\n<li>Metal fume fever<\/li>\n\n\n\n<li>Heat stress<\/li>\n\n\n\n<li>Long-term lung damage<\/li>\n<\/ul>\n\n\n\n<p>IS 3103 ensures that ventilation systems are not random installations \u2014 but scientifically designed systems.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83c\udf2a\ufe0f Types of Industrial Ventilation Covered Under IS 3103<\/h1>\n\n\n\n<p>The standard broadly classifies ventilation into two categories:<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">1\ufe0f\u20e3 Natural Ventilation<\/h2>\n\n\n\n<p>This includes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Windows<\/li>\n\n\n\n<li>Roof ventilators<\/li>\n\n\n\n<li>Louvers<\/li>\n\n\n\n<li>Ridge vents<\/li>\n<\/ul>\n\n\n\n<p>It relies on:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Wind movement<\/li>\n\n\n\n<li>Temperature difference<\/li>\n\n\n\n<li>Stack effect<\/li>\n<\/ul>\n\n\n\n<p>While cost-effective, natural ventilation is rarely sufficient in high-contaminant industries.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2\ufe0f\u20e3 Mechanical Ventilation<\/h2>\n\n\n\n<p>This is where the real engineering begins.<\/p>\n\n\n\n<p>Mechanical systems include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Exhaust fans<\/li>\n\n\n\n<li>Supply air systems<\/li>\n\n\n\n<li>Air handling units<\/li>\n\n\n\n<li>Duct systems<\/li>\n\n\n\n<li>Local exhaust ventilation (LEV)<\/li>\n<\/ul>\n\n\n\n<p>IS 3103 provides detailed guidelines for designing:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Airflow rates<\/li>\n\n\n\n<li>Duct velocities<\/li>\n\n\n\n<li>Capture velocities<\/li>\n\n\n\n<li>Fan selection<\/li>\n\n\n\n<li>Air cleaning devices<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udd2c Understanding Local Exhaust Ventilation (LEV)<\/h1>\n\n\n\n<p>One of the most critical aspects of IS 3103 is <strong>Local Exhaust Ventilation (LEV)<\/strong>.<\/p>\n\n\n\n<p>LEV works on a simple principle:<\/p>\n\n\n\n<p>\ud83d\udc49 <strong>Capture the contaminant at the source before it spreads into the breathing zone.<\/strong><\/p>\n\n\n\n<p>Components of LEV:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Hood<\/li>\n\n\n\n<li>Duct<\/li>\n\n\n\n<li>Fan<\/li>\n\n\n\n<li>Air cleaner<\/li>\n\n\n\n<li>Discharge system<\/li>\n<\/ul>\n\n\n\n<p>Industries where LEV is mandatory:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Welding workshops<\/li>\n\n\n\n<li>Spray painting booths<\/li>\n\n\n\n<li>Grinding sections<\/li>\n\n\n\n<li>Chemical mixing areas<\/li>\n<\/ul>\n\n\n\n<p>Poorly designed LEV is worse than no LEV.<br>IS 3103 specifies capture velocities based on contaminant type.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udcca Air Changes Per Hour (ACH) \u2013 What the Standard Recommends<\/h1>\n\n\n\n<p>One of the most searched terms by safety professionals is:<\/p>\n\n\n\n<p><strong>\u201cHow many air changes per hour are required in industrial buildings?\u201d<\/strong><\/p>\n\n\n\n<p>IS 3103 gives guidance based on:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Type of contaminant<\/li>\n\n\n\n<li>Heat generation<\/li>\n\n\n\n<li>Occupancy<\/li>\n\n\n\n<li>Process intensity<\/li>\n<\/ul>\n\n\n\n<p>Typical recommendations:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Light industrial work: 4\u20136 ACH<\/li>\n\n\n\n<li>Moderate contamination: 6\u201312 ACH<\/li>\n\n\n\n<li>Heavy industrial processes: 12\u201320 ACH<\/li>\n<\/ul>\n\n\n\n<p>However, the standard emphasizes calculation based on contaminant load rather than fixed numbers.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83c\udf21\ufe0f Heat Control Through Ventilation<\/h1>\n\n\n\n<p>India\u2019s climate makes ventilation even more critical.<\/p>\n\n\n\n<p>Industrial heat sources include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Furnaces<\/li>\n\n\n\n<li>Boilers<\/li>\n\n\n\n<li>Compressors<\/li>\n\n\n\n<li>Engines<\/li>\n\n\n\n<li>Molten metal<\/li>\n<\/ul>\n\n\n\n<p>Excess heat causes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Reduced productivity<\/li>\n\n\n\n<li>Heat exhaustion<\/li>\n\n\n\n<li>Heat stroke<\/li>\n\n\n\n<li>Accidents<\/li>\n<\/ul>\n\n\n\n<p>IS 3103 provides guidance for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Heat load calculation<\/li>\n\n\n\n<li>Air movement for cooling<\/li>\n\n\n\n<li>Combination of ventilation and spot cooling<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udca8 Dust Control \u2013 A Major Occupational Health Concern<\/h1>\n\n\n\n<p>In sectors like:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mining<\/li>\n\n\n\n<li>Stone cutting<\/li>\n\n\n\n<li>Cement manufacturing<\/li>\n\n\n\n<li>Foundries<\/li>\n<\/ul>\n\n\n\n<p>Dust becomes the primary hazard.<\/p>\n\n\n\n<p>IS 3103 addresses:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Dust capture systems<\/li>\n\n\n\n<li>Duct design to prevent settling<\/li>\n\n\n\n<li>Proper duct velocity<\/li>\n\n\n\n<li>Filtration systems<\/li>\n\n\n\n<li>Cyclone separators<\/li>\n\n\n\n<li>Bag filters<\/li>\n<\/ul>\n\n\n\n<p>Improper dust ventilation can lead to explosive dust conditions.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udd25 Explosion Prevention Through Ventilation<\/h1>\n\n\n\n<p>Industries handling:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Solvents<\/li>\n\n\n\n<li>Petroleum products<\/li>\n\n\n\n<li>Paints<\/li>\n\n\n\n<li>Gases<\/li>\n<\/ul>\n\n\n\n<p>Must maintain vapour concentrations below Lower Explosive Limit (LEL).<\/p>\n\n\n\n<p>IS 3103 guides on:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Continuous ventilation<\/li>\n\n\n\n<li>Safe discharge<\/li>\n\n\n\n<li>Spark-proof fans<\/li>\n\n\n\n<li>Electrical safety coordination<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83c\udfd7\ufe0f Key Design Considerations Under IS 3103<\/h1>\n\n\n\n<p>The standard provides technical guidance on:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u2714 Hood Design<\/h3>\n\n\n\n<p>Correct hood placement ensures maximum capture efficiency.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u2714 Duct Design<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Smooth interior surfaces<\/li>\n\n\n\n<li>Proper diameter<\/li>\n\n\n\n<li>Minimum bends<\/li>\n\n\n\n<li>Avoid leakage<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u2714 Fan Selection<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Static pressure calculation<\/li>\n\n\n\n<li>Airflow requirement<\/li>\n\n\n\n<li>Noise consideration<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u2714 Air Cleaning Equipment<\/h3>\n\n\n\n<p>Depending on contaminant:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Scrubbers<\/li>\n\n\n\n<li>Electrostatic precipitators<\/li>\n\n\n\n<li>HEPA filters<\/li>\n\n\n\n<li>Cyclone separators<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udcd1 Legal Linkage with Indian Factory Compliance<\/h1>\n\n\n\n<p>Ventilation is directly linked with compliance under:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Section 13 of the <strong>Factories Act, 1948<\/strong><\/li>\n\n\n\n<li>State Factory Rules<\/li>\n\n\n\n<li>Occupational Health provisions<\/li>\n<\/ul>\n\n\n\n<p>Factory inspectors often check:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ventilation adequacy<\/li>\n\n\n\n<li>Dust levels<\/li>\n\n\n\n<li>Fume extraction<\/li>\n\n\n\n<li>Air monitoring reports<\/li>\n<\/ul>\n\n\n\n<p>Failure to comply may result in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Improvement notice<\/li>\n\n\n\n<li>Prosecution<\/li>\n\n\n\n<li>Factory closure<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83e\uddea Monitoring &amp; Testing Requirements<\/h1>\n\n\n\n<p>Ventilation systems are not \u201cinstall and forget\u201d systems.<\/p>\n\n\n\n<p>IS 3103 recommends:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Periodic airflow measurement<\/li>\n\n\n\n<li>Static pressure testing<\/li>\n\n\n\n<li>Smoke testing<\/li>\n\n\n\n<li>Air sampling<\/li>\n\n\n\n<li>Maintenance schedule<\/li>\n<\/ul>\n\n\n\n<p>Without testing, efficiency drops drastically within 1\u20132 years.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udc77 Role of Safety Officers &amp; EHS Managers<\/h1>\n\n\n\n<p>If you are a Safety Officer in India, you should:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Understand IS 3103 basics<\/li>\n\n\n\n<li>Verify ventilation drawings<\/li>\n\n\n\n<li>Check duct leakage<\/li>\n\n\n\n<li>Monitor air quality<\/li>\n\n\n\n<li>Coordinate with mechanical engineers<\/li>\n<\/ul>\n\n\n\n<p>Many safety officers overlook ventilation until inspection time. That is a mistake.<\/p>\n\n\n\n<p>Good ventilation reduces:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Absenteeism<\/li>\n\n\n\n<li>Worker complaints<\/li>\n\n\n\n<li>Health claims<\/li>\n\n\n\n<li>Accident risk<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udcc9 Common Mistakes in Indian Industries<\/h1>\n\n\n\n<p>Here are the most common ventilation mistakes seen in factories:<\/p>\n\n\n\n<p>\u274c Oversized exhaust fans without calculations<br>\u274c No fresh air provision<br>\u274c Ducts full of dust deposits<br>\u274c Hoods placed too far from source<br>\u274c Exhaust outlet near air intake<br>\u274c No annual testing<\/p>\n\n\n\n<p>IS 3103 exists to prevent exactly these errors.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83c\udf0d Why Industrial Ventilation Is Becoming More Critical in 2025<\/h1>\n\n\n\n<p>In recent years:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Awareness about occupational health has increased<\/li>\n\n\n\n<li>Worker compensation claims are rising<\/li>\n\n\n\n<li>ESG compliance is gaining importance<\/li>\n\n\n\n<li>Corporate audits are stricter<\/li>\n<\/ul>\n\n\n\n<p>Industrial ventilation is no longer optional.<\/p>\n\n\n\n<p>It is part of:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sustainability<\/li>\n\n\n\n<li>Corporate governance<\/li>\n\n\n\n<li>Worker welfare<\/li>\n\n\n\n<li>Productivity strategy<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83c\udfed Case Example: Welding Shop Without Proper Ventilation<\/h1>\n\n\n\n<p>Imagine a fabrication unit with 15 welders.<\/p>\n\n\n\n<p>Without LEV:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Metal fumes spread in air<\/li>\n\n\n\n<li>Workers inhale manganese &amp; chromium<\/li>\n\n\n\n<li>Headaches and lung irritation increase<\/li>\n\n\n\n<li>Productivity drops<\/li>\n<\/ul>\n\n\n\n<p>With proper IS 3103-based LEV:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Fumes captured at source<\/li>\n\n\n\n<li>Clear visibility<\/li>\n\n\n\n<li>Reduced sick leave<\/li>\n\n\n\n<li>Better morale<\/li>\n<\/ul>\n\n\n\n<p>Ventilation directly impacts business performance.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udcd8 How to Obtain IS 3103 Standard<\/h1>\n\n\n\n<p>The official standard can be purchased from:<\/p>\n\n\n\n<p><strong>Bureau of Indian Standards<\/strong><\/p>\n\n\n\n<p>It is always recommended to refer to the official copy for technical design work.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83c\udfc6 Benefits of Following IS 3103<\/h1>\n\n\n\n<p>\u2714 Reduced occupational diseases<br>\u2714 Legal compliance<br>\u2714 Better worker productivity<br>\u2714 Improved air quality<br>\u2714 Reduced explosion risk<br>\u2714 Lower insurance liability<br>\u2714 Positive audit outcomes<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udca1 Practical Checklist for Factories<\/h1>\n\n\n\n<p>Use this quick checklist:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Do you have a ventilation layout drawing?<\/li>\n\n\n\n<li>Have airflow calculations been done?<\/li>\n\n\n\n<li>Are ducts cleaned annually?<\/li>\n\n\n\n<li>Is air monitoring conducted?<\/li>\n\n\n\n<li>Are hoods properly positioned?<\/li>\n\n\n\n<li>Is fresh air intake adequate?<\/li>\n\n\n\n<li>Is discharge location safe?<\/li>\n<\/ul>\n\n\n\n<p>If you answered \u201cNo\u201d to 3 or more \u2014 it\u2019s time to review your system.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\ude80 Final Thoughts<\/h1>\n\n\n\n<p>Industrial ventilation is invisible when it works \u2014 and disastrous when it doesn\u2019t.<\/p>\n\n\n\n<p>The <strong>Important Indian Standard on Code of Practice for Industrial Ventilation (IS 3103)<\/strong> is not just a document. It is a life-protection framework.<\/p>\n\n\n\n<p>As industries grow, automation increases, and compliance becomes stricter \u2014 ventilation design will move from being a mechanical issue to a strategic safety priority.<\/p>\n\n\n\n<p>If you are:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A Factory Owner<\/li>\n\n\n\n<li>Safety Officer<\/li>\n\n\n\n<li>EHS Professional<\/li>\n\n\n\n<li>Mechanical Engineer<\/li>\n\n\n\n<li>Industrial Consultant<\/li>\n<\/ul>\n\n\n\n<p>Understanding this standard is not optional.<\/p>\n\n\n\n<p>It is essential.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd14 Stay Updated<\/h2>\n\n\n\n<p>For more in-depth safety guides on Indian Standards, Factory Rules, and Occupational Health practices \u2014 follow this blog and stay informed.<\/p>\n\n\n\n<p>Because safety is not an expense.<\/p>\n\n\n\n<p>It is an investment in human life.<\/p>\n\n\n\n<h4 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Detailed guide for safety officers, factory managers &#038; EHS professionals in India.<\/p>\n","protected":false},"author":2,"featured_media":1891,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[129],"tags":[661,575,664,636,663,638,521,662,665,666,571],"class_list":["post-1890","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-safety-blog","tag-bis-standards","tag-ehs-management","tag-factory-act-compliance","tag-factory-safety-india","tag-indian-standard","tag-industrial-safety-blog","tag-industrial-ventilation","tag-is-3103","tag-occupational-health-india","tag-ventilation-code-of-practice","tag-workplace-air-quality"],"_links":{"self":[{"href":"https:\/\/ehs-hub.contentstudioo.com\/index.php\/wp-json\/wp\/v2\/posts\/1890","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ehs-hub.contentstudioo.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ehs-hub.contentstudioo.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ehs-hub.contentstudioo.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ehs-hub.contentstudioo.com\/index.php\/wp-json\/wp\/v2\/comments?post=1890"}],"version-history":[{"count":1,"href":"https:\/\/ehs-hub.contentstudioo.com\/index.php\/wp-json\/wp\/v2\/posts\/1890\/revisions"}],"predecessor-version":[{"id":1892,"href":"https:\/\/ehs-hub.contentstudioo.com\/index.php\/wp-json\/wp\/v2\/posts\/1890\/revisions\/1892"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ehs-hub.contentstudioo.com\/index.php\/wp-json\/wp\/v2\/media\/1891"}],"wp:attachment":[{"href":"https:\/\/ehs-hub.contentstudioo.com\/index.php\/wp-json\/wp\/v2\/media?parent=1890"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ehs-hub.contentstudioo.com\/index.php\/wp-json\/wp\/v2\/categories?post=1890"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ehs-hub.contentstudioo.com\/index.php\/wp-json\/wp\/v2\/tags?post=1890"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}