Class 4 TST Testing Strips – Pack of 200

Pricing for Class 4 TST Testing Strips – Pack of 200:

Class 4 TST Testing Strips – Pack of 200

These Class 4 TST Testing Strips (Time, Steam, Temperature) Indicator Strips are designed to provide reliable, multi-parameter monitoring of sterilisation performance in non-vacuum steam autoclaves. Offering a quick and simple way to confirm that critical conditions for effective sterilisation have been achieved, these indicators are ideal for daily use in healthcare, dental, and laboratory settings.

Class 4 TST Testing Strips Key Features & Benefits

• Class 4 multi-parameter indicators – monitor both time and temperature during the cycle.

• Calibrated for 134°C / 3.5 minutes and 121°C / 15 minutes – suitable for common non-vacuum autoclaves.

• Immediate, irreversible colour change – clear visual confirmation of cycle success.

• Pack of 200 strips – cost-effective for routine daily use.

• Supports sterilisation assurance and compliance in medical, dental, and laboratory environments.

Product Description

Class 4 chemical indicators are defined as multi-parameter indicators, meaning they respond to two or more essential sterilisation variables — typically temperature and exposure time. These strips are precisely calibrated for:

• 134°C for 3.5 minutes

• 121°C for 15 minutes

These parameters correspond to standard gravity (non-vacuum) steam sterilisation cycles, allowing accurate and consistent verification of autoclave performance.

When exposed to the correct sterilisation conditions, each strip undergoes a distinct, irreversible colour change, providing immediate and easy-to-interpret visual confirmation that the load has reached the required parameters. This supports infection prevention protocols and ensures that instruments are properly processed before clinical use.

Usage & Application

Place one indicator strip in each pack, pouch, or tray before running the sterilisation cycle. Position it in an area that is most challenging for steam penetration. After the cycle, inspect the indicator for the expected colour change, confirming that the load has reached the necessary temperature and exposure time.

Important Information

Class 4 indicators provide verification of key sterilisation parameters but should be used alongside biological indicators and other validation processes when monitoring critical or implantable instruments.

DELIVERY / CARRIAGE CHARGES:

TRADE CUSTOMERS (Veterinary Practices & Hospitals Only)

Trade customers will receive free next working day delivery on all UK Mainland orders over £75 (ex. VAT). An order under £75 will incur a handling charge of £6.99 (ex. VAT). Charges for international or remote locations (for example, Scottish Highlands and Islands) will always be incurred and the final amount will be determined upon receipt of order. Orders will be delivered by our nominated carrier to the address given on the order. Orders received by 5 p.m. are processed the same day for delivery the next working day.

PRIVATE CUSTOMERS

Private customers can choose one of the following options;

3-5 working day service – £6.99 + VAT

1-2 working day service – £9.99 + VAT

Next working day service – £12.99 + VAT

Please note these timescales are working days and will not include weekends or Bank Holidays. These charges cover packaging & carriage irrespective of the amount spent. Additional charges will apply for heavier and bulkier orders and customers will be contacted directly for approval before despatch. Orders will be delivered by our nominated carrier to the address given on the order. Orders received by 5 p.m. are processed the same day.

CARRIERS

The Vet Store reserves the right to choose a logistics partner of their choice and this may vary from time to time. Currently this may vary between TNT, Hermes and Royal Mail.

DELAYS

Whilst every endeavour is made to ensure delivery within the above timescales, no guarantee can be given due circumstances beyond our control and no liability will be accepted for any loss or damage occasioned by delay however caused.

SHORTAGES

In the event of short delivery or damage, The Vet Store must be notified within 48 hours. Non-receipt of goods invoiced must be brought to our attention within 24 hours of the date of delivery. The Vet Store cannot accept responsibility for delivery problems resulting from incorrect information supplied by the customer.

OVERSEAS CUSTOMERS

EU: £45 or £55 carriage per 20kg will be levied regardless of amount spent dependent on which country the order is being delivered.

REST OF THE WORLD: £125 carriage per 20kg will be levied regardless of amount spent.

These amounts are for indication purposes only and in certain circumstances, it may be necessary to contact you for an additional carriage payment, for example if the parcel is large or heavy.

RETURNS

In the unlikely event that goods need to be returned, we offer a “no quibble” 10 working day returns policy which has been designed for minimum inconvenience.

For goods ordered in error you will be responsible for the full cost of postage and packaging.

Approval must be sought before items are returned.

Please fill out the returns form and once you have obtained a unique returns number (URN#) and approval, return it along with the goods for return – click here to download.

PLEASE NOTE – We strongly recommend for security purposes when sending items back you use a ‘signed for’ delivery service, such as Royal Mail Recorded or Special Delivery and ensure the package is adequately insured. We are not liable for any packages lost in the post and do not accept responsibility for any item(s) until a member of our staff has signed for the package. Goods need to be returned in adequate packaging to avoid damage in transit.

Credit will only be issued for returned stock received in a re-saleable condition.

You can telephone our customer services team on 01274 736319 to place an order, Monday to Friday from 9.00am to 5.30pm.

Alternatively, you can fax us on 01274 491585, or email us on sales@thevetstore.net