---
id: KB-CS-026
url: https://app.codecontract.io/help/manufacturing/chemicals-and-plastics-processing
idioma: en
categoria: sector-industria
subcategoria: quimica
audiencia: usuario
nivel: intermedio
actualizado: 2026-08-13
tambienEn: [es]
relacionados: [KB-NO-002, KB-CS-021]
citadoPor: [KB-IU-003]
---

# Chemicals and plastics processing

_Safety data sheets that change, substances that get restricted, and customers who ask._

**Responde a:** updated safety data sheets · restricted substances in my products · composition declaration to customer · chemical compliance supplier documentation

In chemicals and plastics, documentation does not expire on a date: it expires because the rules change. A substance usable today may be restricted, and then you have to know which of your products contained it — and you only know if you asked beforehand.

## The three modules

| What | Module | Why there |
| --- | --- | --- |
| Supplier safety data sheets and composition | Trackline | They come from outside and update without notice |
| Confidentiality agreements over formulations | Consigne | Before sharing anything technical |
| Production and batch control records | SmartCheck | When a specific batch may be disputed |

> [!IMPORTANT]
> The safety data sheet is updated by the supplier when something changes, and they do not always send it. Marking it for annual review is the minimum: working from a four-year-old sheet is working from information that may have stopped being true.

## Frameworks cited

Chemical substance registration, evaluation and authorisation, classification and labelling, safety data sheets, substance restrictions in articles, and — depending on the end product — packaging, food contact or ecodesign rules. The exact scope depends on your activity and volumes; confirm with your adviser.

> [!WARNING]
> When a customer asks whether one of your products contains a specific substance, the deadline is usually short and the answer depends on sheets held by your supplier. If you have not requested them beforehand, you will not make it.

> [!NOTE]
> Confidentiality agreements signed before sharing formulation avoid the perennial problem: technical information emailed to someone who later changes employer.

**Can I find which products use a substance?**

If composition has been requested and stored per reference, yes. Otherwise it means asking supplier by supplier.

**How often should sheets be renewed?**

Annually at minimum, and whenever the supplier changes formulation.

**Does it help answer a customer?**

That is exactly the point: answering with a document and a date, not from memory.

## Ejemplos

**A processor is asked whether a restricted substance is in its products, with a ten-day deadline.**

- Checks the compositions already requested per reference

→ Answers in two days with documents instead of having to ask thirty suppliers.

**A product's safety data sheet expires.**

- Records validity on receipt

→ The warning arrives before the next shipment.

**A client asks for one specific product's sheet.**

- Checks that reference's file

→ You answer without phoning the supplier.

**The supplier changes the formulation and nobody knows.**

- Asks them to communicate any change

→ The change arrives before the question.

**The documentation travels with the goods and gets lost.**

- Also carries it accessible from a phone

→ A lost paper stops halting the job.

**A raw material problem must be contained.**

- Checks which production runs used it

→ Scope narrows to what is affected.