## How do you read numbers on a pipette?

Most pipets have 3 boxes. All P-1000, P-200, P-100 need those 3 boxes for their whole number measurements. However, the P-20 and P-10 use that last number as a decimal point number! Notice that both the P-20 or P-10 has a red number at the bottom position, while the P-1000 has a red number in the top position.

**What is the range of a 10 mL pipette?**

AO-10ML

Volume Range | 1 mL ; 10 mL |
---|---|

Precision ± | 0.6 % ; 6 µL ; 0.2 % ; 10 µL ; 0.16 % ; 16 µL |

Increment (manual) | 20 µL |

Auto clavability | Half |

Width (Shipping) | 13.5 cm |

### What do the numbers on a pipette mean?

The volume indicator consists of a three-number dial and is read from top to bottom. The three digits indicate the volume selected and are colored black and/or red. The black numbers on the P-20 pipette show microliters; the red numbers show tenths of microliters.

**How do you read a P10 pipette?**

Set the desired volume by turning the centrally located rings clockwise to increase volume or counterclockwise to decrease volume. P10: Maximum volume 10 µl. Accurate between 1 µl and 10 µl. Numbers on the micropipette (typically black-black-red) are read as XX.

## How do you use a microliter pipette?

Steps to follow when using a micropipette

- Select the volume.
- Set the tip.
- Press and hold the plunger at the first stop.
- Place the tip in the liquid.
- Slowly release the plunger.
- Pause for a second and then move the tip.
- Insert the tip into the delivery vessel.
- Press the plunger to the second stop.

**What is the uncertainty of a 10 mL pipette?**

±0.05

Uncertainties for Volumetric Glassware

Item | Volume (mL) | Uncertainty (mL) |
---|---|---|

Mohr (graduated) pipette | 10.00 | ±0.05 |

Volumetric flask | 1000.0 | ±0.30 |

500.0 | ±0.15 | |

250.0 | ±0.12 |

### What is the uncertainty of a 10 mL graduated cylinder?

03. Uncertainty for Volumetric Glassware

Glassware | Volume in mL | ± Uncertainty in mL |
---|---|---|

Buret | 50.00 100.00 | 0.05 0.10 |

Erlenmeyer flasks | 100 250 | 5 10 |

Beaker | 50 100 | 5 5 |

Graduated cylinder | 10.0 100.0 | 0.1 0.5 |

**How do you read a P20?**

On a P20, the most you can measure is 20, so the top digit is 10’s of microliters. On a P200, the most you can measure is 200, so the top digit is 100’s of microliters. On a P1000, the most you can measure is 1000, so the top digit is 1000’s of microliters (also known as milliliters).

## How do you measure microliters?

A micropipette can come in one of many standard sizes, and the most common can measure out a volume between 0.1 microliters and 1000 microliters. This is 0.0001 milliliters to 1 milliliter. Just as 1000 milliliters is equal to 1 liter, 1000 microliters is equal to 1 milliliter.

**What is the uncertainty of a 10 mL volumetric flask?**

To find the uncertainties and approximate number of significant figures when using volumetric glassware use Table 1. Table 1. Capacity Tolerances for Class A Volumetric Glassware. A 10-ml pipet is listed as 10.00 0.02, which is close enough to 4 significant figures, 10.00 ml.

### What is the precision of 10 mL?

If you look at a 10mL graduated cylinder, for example, the smallest graduation is tenth of a milliliter (0.1mL). That means when you read the volume, you can estimate to the hundredths place (0.01mL).

**What is the least count of pipette?**

With Matmatch you can explore a database of thousands of metals, polymers, ceramics and more – for free. What is the least count of pipette? The lowest valid whole number for this question could be zero or one. Depending on the diameter and volume and discount you would like to receive it may be more.

## How much milliliter can a pipette hold?

Size: Each pipette can hold 7 ml of liquid with graduated markings up to 3 ml in 0.5 ml increments. What is the function of pipette? A pipette is a laboratory instrument used to measure out or transfer small quantities of liquid, in volumes of milliliters (mL), microliters (μL).

**What is the most common use of a pipette?**

APPLICATION SCENARIOS – science experiment,modeling,making watercolors,etc.

### How do you read the numbers on a micro pipette?

History: In 1957 Doctor Heinrich Schnitger at the University of Marburg in Germany invented and patented the first micropipette.