---
product_id: 59530919
title: "Refractometer Calibration Standard, Accurate Reference for the Calibration of Seawater Refractometers, Hydrometers & Other Density Measuring Equipment, RES60"
price: "€ 20.49"
currency: EUR
in_stock: true
reviews_count: 13
url: https://www.desertcart.sk/products/59530919-refractometer-calibration-standard-accurate-reference-for-the-calibration-of-seawater
store_origin: SK
region: Slovakia
---

# Reliable 1.3394 Refractive Index Exact 1.0264 Specific Gravity Precise 35 ppt Salinity Refractometer Calibration Standard, Accurate Reference for the Calibration of Seawater Refractometers, Hydrometers & Other Density Measuring Equipment, RES60

**Price:** € 20.49
**Availability:** ✅ In Stock

## Summary

> 🌟 Calibrate like a pro, measure like a master!

## Quick Answers

- **What is this?** Refractometer Calibration Standard, Accurate Reference for the Calibration of Seawater Refractometers, Hydrometers & Other Density Measuring Equipment, RES60
- **How much does it cost?** € 20.49 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/59530919-refractometer-calibration-standard-accurate-reference-for-the-calibration-of-seawater)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Verified by Experts:** Tested and confirmed against multiple devices for unmatched reliability—no more guesswork or variability.
- • **Optimize Your Workflow:** Save time and avoid costly errors with a calibration standard that guarantees repeatable, accurate results.
- • **Calibrate with Confidence:** Industry-grade accuracy ensures your seawater refractometers and hydrometers deliver flawless readings every time.
- • **Multi-Device Compatibility:** Perfectly calibrates refractometers, hydrometers, and other density measuring tools—one standard, endless uses.
- • **Consistent Salinity Standard:** 35 ppt salinity benchmark trusted by professionals for precise marine and lab measurements.

## Overview

Brightwell Aquatics Refractometer Calibration Standard RES60 offers a precise 35 ppt salinity, 1.0264 specific gravity, and 1.3394 refractive index reference solution, ensuring accurate calibration of seawater refractometers, hydrometers, and other density measurement devices. Trusted by professionals and verified across multiple instruments, it delivers consistent, reliable results to optimize your marine and lab measurements.

## Description

Accurate reference for the calibration of seawater refractometers, hydrometers & other density measuring equipment. 35 ppt Salinity1. 0264 Specific Gravity1. 3394 Refractive Index53 uS/cm at 25 deg c

Review: Accurate calibration std. - Advertised as 35 PPT and it was spy on, verified against 4 refractometers and 3 electronic readers. Brighter ll is always as advertised, unlike a few competitors that can be all over the map
Review: Recommend! - Recommend!

## Features

- Accurate reference for the calibration of seawater refractometers, hydrometers & other density measuring equipment
- 35 ppt Salinity
- 1. 0264 Specific Gravity
- 1. 3394 Refractive Index
- 53 uS/cm at 25 deg c

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Customer Reviews | 4.4 out of 5 stars 391 Reviews |

## Images

![Refractometer Calibration Standard, Accurate Reference for the Calibration of Seawater Refractometers, Hydrometers & Other Density Measuring Equipment, RES60 - Image 1](https://m.media-amazon.com/images/I/5173Yk3UDiL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Accurate calibration std.
*by B***E on July 13, 2022*

Advertised as 35 PPT and it was spy on, verified against 4 refractometers and 3 electronic readers. Brighter ll is always as advertised, unlike a few competitors that can be all over the map

### ⭐⭐⭐⭐⭐ Recommend!
*by C***E on February 7, 2026*

Recommend!

### ⭐⭐⭐⭐⭐ A must for salt water tanks
*by R***N on July 13, 2025*

This is a life saver - literally. I ordered a new refractor and without this could have killed everything by drastically changing the salt % in my reef tank .

## Frequently Bought Together

- Brightwell Aquatics Refractometer Calibration Standard, Accurate Reference for The Calibration of Seawater Refractometers, Hydrometers & Other Density Measuring Equipment, RES60
- Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic Temperature Compensation
- Continuum Reagents Refractometer Calibration Standard – Seawater Reference for Calibration of Density Measuring Equipment, 60 ml

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**Shop now:** [https://www.desertcart.sk/products/59530919-refractometer-calibration-standard-accurate-reference-for-the-calibration-of-seawater](https://www.desertcart.sk/products/59530919-refractometer-calibration-standard-accurate-reference-for-the-calibration-of-seawater)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-06-23*