Palintest DPD XT Photometer Test Tablets – 250 Pack (AP033/1) for Chlorine Testing in Pool & Spa Water

Palintest AP033/1 DPD XT tablets are used for extended total chlorine measurement in pool and spa water as part of an extended-range chlorine test sequence. DPD XT is used after DPD XF (AP013) and, when MPS shock treatment is present, after Oxystop (AP017). Each pack contains 250 individually foil-sealed tablets.

Key Features

• Tests: Extended total chlorine (part of the DPD XF / Oxystop / DPD XT sequence)
• 250 individually foil-sealed tablets per pack — extended shelf life
• Compatible with Palintest extended-range photometers
• Part number / Palintest code: AP033/1

Extended Chlorine Test Sequence

1. Measure free chlorine with DPD XF (AP013)
2. Add Oxystop (AP017) if MPS shock has been used (neutralises interference)
3. Add DPD XT (AP033/1) to measure total chlorine

Compatible Test Equipment

• Palintest Lumiso Pooltest 6 Photometer
• Palintest Lumiso Pooltest Expert Photometer Kit

Related Palintest Test Tablets

Chlorine Testing

• Palintest DPD 1 (AP011) – Free Chlorine, Photometer, 250 Pack
• Palintest DPD 1 Rapid (AT010) – Free Chlorine, Comparator/Rapid, 250 Pack — obsolete, limited stock
• Palintest DPD 3 (AP031) – Total Chlorine, Photometer, 250 Pack
• Palintest DPD XF (AP013) – Extended Free Chlorine, Photometer, 250 Pack
• Palintest DPD XT (AP033/1) – Chlorine, Photometer, 250 Pack — this product
• Palintest DPD Oxystop (AP017) – Removes MPS Interference, 250 Pack

pH Testing

• Palintest Phenol Red (AP130) – pH, Photometer, 250 Pack
• Palintest Phenol Red (AK131) – pH, Comparator Use Only, 250 Pack

Alkalinity Testing

• Palintest Alkaphot (AP188) – Total Alkalinity, Photometer, 250 Pack
• Palintest Alkavis (250F) – Total Alkalinity, Rapid, 250 Pack

Hardness Testing

• Palintest Calcicol (AP252) – Calcium Hardness, 250 Pack
• Palintest Hardicol (AP254) – Total Hardness, Photometer, 250 Pack

Other Parameters

• Palintest Bromine (AP060) – Bromine, Photometer, 250 Pack
• Palintest Cyanuric Acid (AP087) – Stabiliser Level, Photometer, 250 Pack
• Palintest Copper (AP187) – Copper, Photometer, 250 Pack
• Palintest Chloride (AP268) – Chloride, Photometer, 250 Pack

Specifications

• Part Number: AP033/1
• SKU: PAL-47-91029
• Parameter: Extended Total Chlorine (DPD XT)
• Pack Size: 250 tablets
• Format: Individually foil-sealed tablets
• Brand: Palintest
• Condition: New

Frequently Asked Questions

When do I use DPD XT instead of DPD 3?

DPD XT (AP033/1) is used in the extended-range chlorine test sequence alongside DPD XF (AP013) and Oxystop (AP017), typically for heavily treated or shock-dosed pool water. DPD 3 (AP031) is used in the standard chlorine test sequence with DPD 1 (AP011).