Cyclosiloxanes content

Cyclosiloxanes are the primary building blocks for siloxane polymers and ultimately silicone rubber. Hence, cyclosiloxanes can remain in the final silicone article as residual impurities. Several cyclosiloxanes (D4, D5, D6; see table below) have been considered harmful to the environment and human health. The three substances have been listed in the REACH Candidate List of substances of very high concern (SVHC).

The Nordic Swan Ecolabel criteria for greaseproof paper has defined the limit values for impurities D4, D5, and D6 in silicone coating as 400 ppm per substance and 1000 ppm for the sum of D4, D5, and D6.

Substance

CAS N:o

Abbreviation

Octamethylcyclotetrasiloxane

556-67-2

D4

Decamethylcyclopentasiloxane

541-02-6

D5

Dodecamethylcyclohexasiloxane

540-97-6

D6

Suitable sample matrices
Silicone, silicone-coating
Required sample quantity
50 g
Typical turnaround time
4 weeks after receiving the samples
Detection limit
LOQ: 0.010 mg/kg
Available quality systems
Accredited test method
Device types

Price

Price per sample (Excl. VAT):
766 €

We also charge a 97 € service fee per order.

Large batches of samples are eligible for discounts.

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