Warning Ammonia Sign is a warning safety sign designed to communicate the danger from the chemical ammonia which can cause burning of the eyes, nose and throat. Under the safety and signals act of 1996 it is mandatory to display signs warning of hazards like ammonia. The traditional warning symbol in yellow has a black pictogram of a skull and crossbones and the wording 'Warning Ammonia'. It is offered in one size and material options, which are listed below. Where required, our products are designed to conform to UK government regulations or follow best practice and conform to ISO7010. Our ammonia warning sign is in stock and ready for immediate delivery.

Product Options

On all of our safety signs, we offer the fastest guaranteed delivery option in the UK at our checkout. If you order before 3pm, your signs will be delivered by our courier before 9am or before 10am any weekday except Sunday. The standard delivery time is the next day, but we cannot give you a specific time.

Materials Guide

Guidance on Sizes

This table shows maximum viewing distances in 'good' and 'poor' light conditions. Please note that hese are a guidelines only - please refer to BS ISO 3864-1: 2011 for specific calculations. You can download a copy of the Health and Safety Executive's "Safety signs and signals" document by clicking here

Delivery Schedule

Orders in mainland UK placed before 3.00pm from Monday to Friday will be delivered the following working day.

Deliveries to N.Ireland will be between 2-3 days.

The above delivery times are applicable subject to the products being in stock. If orders are placed for products which are not in stock then you will be notified by phone or email.

Delivery is normally made between 9am and 5pm. We are unable to provide customers with an exact time for delivery. While we offer a next day delivery service, it is not guaranteed.