Palintest DPD 1 Photometer Test Tablets – 250 Pack (AP011) for Pool Water Chlorine Testing

Palintest AP011 DPD 1 tablets are the standard free chlorine reagent for Palintest photometers and DPD 1-compatible test systems. Each pack contains 250 individually foil-sealed tablets for accurate, repeatable free chlorine measurement in pool, spa, and aquatic facility water.

Key Features

• Tests: Free chlorine
• 250 individually foil-sealed tablets per pack — extended shelf life
• Compatible with Palintest Pooltest photometers and all DPD 1-compatible photometric systems
• Manufactured to ISO standards for water testing accuracy
• Part number / Palintest code: AP011

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 — this product
• 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
• 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: AP011
• SKU: RE-AP011
• Parameter: Free Chlorine (DPD 1)
• Pack Size: 250 tablets
• Format: Individually foil-sealed tablets
• Brand: Palintest
• Condition: New

Frequently Asked Questions

What is the difference between Palintest AP011 and AT010 DPD 1 tablets?

AP011 is the current photometer-compatible DPD 1 tablet for use with Palintest photometers. AT010 was a rapid/comparator formulation that is now obsolete and has been replaced by AP011.

What does DPD 1 test for?

DPD 1 (AP011) measures free chlorine in pool and spa water. It is typically used as the first step in a chlorine test sequence, with DPD 3 (AP031) used subsequently to determine total and combined chlorine.

Do I need DPD 3 tablets as well as DPD 1?

DPD 1 measures free chlorine only. To determine total chlorine and calculate combined chlorine, you also need DPD 3 (AP031). Both are commonly used together in a standard pool water test sequence.