• 4220: Control Fabric 10×3 cm, 25-piece pack
• 4222: BHT-Free 63 Micron Film 400x200mm 100-piece pack
• 4225: Impregnated Test Papers 50-piece pack
• 4227: Glass Plates 100 x 40 x 3mm

As specified in BS EN ISO X18, M&S C20B, Next TM43