Water, energy and chemicals: how impact is measured in a factory
Sustainability becomes real when it is metered. Wet processing, boilers and compressed air are where most garment impact sits, and each has a simple unit that a factory can measure weekly and improve without any new technology.
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How it works
1.Meter water per kilogram of production
Litres per kilogram of fabric or garment processed is the core wet-processing figure. Sub-meter washing, dyeing and finishing separately; a single factory-gate meter hides where the loss is.
2.Track energy per garment and per machine hour
Split electricity from thermal energy. Boiler efficiency, steam leaks, condensate return and compressed-air leaks usually deliver the fastest reductions, ahead of any equipment replacement.
3.Control chemistry against the MRSL
Manage inputs, not just outputs: every chemical in store must be on an approved list with a valid safety data sheet, and formulations must be traceable to the wash or dye recipe that used them.
4.Prove effluent compliance
ETP performance is checked on pH, COD, BOD, TDS, colour and temperature against local and buyer limits. Log daily readings and keep sludge disposal records — buyers audit the record trail, not just the plant.
Quick reference
- Denim wash benchmark
- Best practice under 30 L/garment
- Typical improvement target
- 10–20% water saving from recipe control
- Effluent monitoring
- Daily pH, COD, BOD, TDS logs
- Chemical control
- Approved inventory with current SDS
Checks you can run this week
- Install sub-meters on wash, dye and finishing before setting reduction targets.
- Survey compressed air and steam for leaks monthly and log fixes.
- Reconcile the chemical store inventory against approved recipes each month.
- Verify ETP readings independently at least quarterly.
Free downloads for this topic
Print-ready A4 PDF sheets from the NOSK.space garment media library — free of charge, no sign-up.
Single jersey knit swatch card
Loop structure illustration with GSM range, stretch behaviour, expected shrinkage and ball-point needle sizes for cotton single jersey.
Cotton poplin plain weave swatch card
Plain weave grid with shirting weight ranges, bias-only stretch notes, shrinkage targets and sharp needle sizes for light wovens.
Free studies and toolkits that use this
This explainer supports the following NOSK.space learning paths and toolkits — all free of charge, with no payments and no paywalls.
Free learning · Intermediate
Sustainable Manufacturing EssentialsMaterials, water, energy and circularity — measurable sustainability for production teams.
Free toolkit
Audit Readiness BinderA structured evidence index for social, chemical and quality audits, with owner and review columns.
Real contacts for this topic
Factories, mills, suppliers, buyers and industry bodies from the free NOSK.space garment directory that work directly with water, energy and chemicals: how impact is measured in a factory. Every detail below is published on the organisation's own site and each link opens that site — free of charge, no introductions sold, no commission taken.
DBL Group
Dhaka · Bangladesh
Vertically integrated knitwear manufacturing, spinning, dyeing and printing
- Address
- South Avenue Tower, House 50 (6th Floor), Road 3, Gulshan Avenue, Dhaka 1212, Bangladesh
Arvind Limited
Ahmedabad · India
Denim, woven shirting and garment manufacturing
- Address
- Naroda Road, Ahmedabad 382 345, Gujarat, India
- Phone
- +91 79 6826 8000
- investor@arvind.in
H&M Group
Stockholm · Sweden
Global fashion retail group publishing a public supplier list
- Address
- Mäster Samuelsgatan 46A, SE-106 38 Stockholm, Sweden
- Phone
- +46 8 796 55 00
- info@hm.com
Levi Strauss & Co.
San Francisco · United States
Denim brand publishing supplier lists and worker wellbeing standards
- Address
- 1155 Battery Street, San Francisco, CA 94111, United States
- Phone
- +1 415 501 6000
JAAF — Joint Apparel Association Forum Sri Lanka
Colombo · Sri Lanka
Umbrella body for Sri Lanka's apparel industry
- Address
- No. 107, Hunupitiya Lake Road, Colombo 2, Sri Lanka
- Phone
- +94 11 454 2231
- info@jaafsl.com
Where this fits in sourcing
This topic is used at the following stages of the free NOSK.space sourcing guide, which links each decision to the questions to ask and the real organisations to approach.
- Stage 9: Sustainability and compliance
Verify environmental and traceability claims with evidence, not marketing.
Common questions
- Where should a factory start?
- With metering and recipe control. Measuring litres per kilogram and standardising wash recipes typically removes double-digit waste before any capital investment.
- Is this material free to use in my factory?
- Yes. Use it freely — every study and toolkit on NOSK.life is free of charge.
Finished this explainer?
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Jobs this knowledge leads to
Real garment industry roles that hire for exactly this skill, with the employers that recruit them. Free to browse — no fees, no commission.
Sustainability & chemical management · Mid level
Sustainability & Chemical Compliance Officer
Runs the chemical inventory, environmental data and traceability evidence buyers now audit as hard as quality.
Open the role guideSourcing & buying office · Senior
Sourcing / Vendor Manager (buying office)
Sits on the buyer's side: selects suppliers, places and moves orders, and develops factory capability.
Open the role guide
More free media
- Recycled fibres, traceability and circular claims explained
What recycled content, chain-of-custody certification and design-for-recycling actually require — and which claims a factory can safely support.
- Woven vs knit: how fabric construction changes everything
Warp and weft versus loops and courses — why the same fibre behaves completely differently once it is woven or knitted.
- How to read a fabric test report without guessing
GSM, shrinkage, colour fastness, pilling and tensile results — what each line means and which failures actually stop production.