Glossary
Uniform fabric terms: Z
The vocabulary that turns up on spec sheets, quotations and tender documents, defined in a line or two. Where a term deserves more than that, it links to the guide that covers it properly.
Z
- ZDHC
- Zero Discharge of Hazardous Chemicals, an industry programme that publishes a manufacturing restricted substances list and wastewater guidelines for textile processing. It governs what may be used in the dyehouse rather than what may be present in the finished cloth, which is the distinction from a product-level restricted substances list. Read the guide on ZDHC
- Zero liquid discharge
- A treatment standard under which a processing unit releases no liquid effluent at all: wastewater is treated, the water is recovered for reuse and the remaining salts are dried to solids. Where a court or pollution board enforces it, a dye house that cannot meet it has to stop processing, which is why it can affect lead times for cloth sent there for dyeing and finishing.
- Zero-rated supply
- Under Indian GST, a supply such as an export that is taxed at a rate of zero rather than exempted. The exporter can still recover the GST paid on yarn and other inputs, either by shipping under a bond without paying tax or by paying the tax and claiming a refund.
- Zone of inhibition
- A qualitative anti-bacterial result, read as the clear ring around a specimen on an inoculated plate. It shows that something is leaching out and cannot be written into a specification as a percentage, so it is not a substitute for a quantitative reduction figure. Read the guide on Zone of inhibition
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